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HomeMy WebLinkAboutR-2007-188 Adopt 2007 Wastewater Connection Charge Study DRAFT COPY- RESOLUTION NO. R-2007- 1 RR A RESOLUTION Adopting the 2007 Wastewater Connection Charge Study as revised, for the City of Yakima, Washington WHEREAS, a financing plan is one element necessary under RCW 36.70A.070(3) to provide for the wastewater needs of the area for the health, safety and well being of the people, as well as complying with State and Federal environmental laws and regulations; and WHEREAS, the City of Yakima is required to identify the financial plan necessary to implement the projected growth capital needs of its wastewater service area and this is accomplished in the attached document titled "2007 Wastewater Connection Charge Study", hereafter known as the "Study"; and WHEREAS, The City of Yakima is authorized to acquire, operate, manage and fix the price for service from a system of sewerage under RCW 35.67.020, RCW 35.92.020 and Article IX of the Charter of the City of Yakima; and WHEREAS, members of the City Council, through deliberation, have considered changes in and additions to such Study all of which are incorporated into such Study and Attachments as are adopted by this Resolution; and WHEREAS, the City Council finds and determines that adoption of the Study will promote the goals of the Growth Management Act, RCW Chapter 36.70A, that the conclusions of the Study are fair, just and reasonable, and that adoption of the Study will serve the public interest; now therefore BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF YAKIMA: 1. The document entitled "2007 Wastewater Connection Charge Study", a true copy of which Study and Attachments are on file in the City Clerk's Office and are incorporated by reference herein, is hereby adopted by the City of Yakima. 2. The policies recommended by such Study are hereby adopted by the City of Yakima, including without limitation the following policy regarding the establishment of "placeholder" accounts that allow new LID participants to preserve their "LID waiver" if they do not connect within one year of a certain time. ADOPTED BY THE CITY COUNCIL this llth •.yofDec- •e' 007 G ,ice David Edler, Mayor AN ORDINANCE ORDINANCE NO. 2007 - relating to wastewater rates, fees and charges; adjusting various wastewater rates, fees and charges; amending Sections, 7.58.020, 7.58.030, 7.58.040, 7.58.050, 7.58.060 and 7.58.070 of the City of Yakima Municipal Code; and providing for related matters. WHEREAS, the City Of Yakima (the "City") is authorized by Title 35 RCW to acquire, construct, own operate and provide financing for waterworks and systems of sewerage, and to establish rates, fees and charges therefore; and WHEREAS, RCW 35.67.020 and RCW 35.92.020(2) authorize the City Council to consider certain factors in classifying customers served or service and facilities furnished by such system of sewerage; and WHEREAS, the City Council has considered said factors; and WHEREAS, the City Council finds that the City has grown to such a size to justify a second Zone within the City limits; and WHEREAS, the City Council finds and determines that it is in the best interest of the citizens of the City that ordinances related to such systems of sewerage, wastewater rates, fees, charges and related matters be amended as set forth in this Ordinance; and WHEREAS, the City Council finds and determines that the rates, fees and charges contained in this Ordinance are fair, just and reasonable; Now, Therefore, BE IT ORDAINED BY THE CITY OF YAKIMA Section 1. Section 7.58.010 of the City of Yakima Municipal Code reads as follows: 7.58.010 Purpose of chapter. The purpose of this chapter is to allocate an equitable share of the cost of the existing wastewater system ("historic cost"), and a reasonable estimate of the actual cost of connection (including costs associated with expanding the wastewater system) ("actual cost"), to persons who connect facilities to the wastewater system. Section 2. Section 7.58.020 of the City of Yakima Municipal Code is hereby amended to read as follows: "7.58.020 Definitions. Unless the context specifically indicates otherwise, the meaning of terms in this chapter shall be as follows: 1. "Collection pipes" mean those wastewater system pipes less than twelve inches in diameter used to collect wastewater from adjacent properties' building sewers. 2. "Collection pipe system" means a series of collection pipes extending from a common connection point to a trunk/interceptor. 2007 WCC Page 1 of 3. "Discharge authorization" shall have the same meaning as in Chapter 7.65. 4. "Discharger - industrial discharger or user" shall have the same meaning as in Chapter 7.65. 5. "Domestic discharger or user" shall have the same meaning as in Chapter 7.65. 6. "Domestic wastewater" shall have the same meaning as in Chapter 7.65. 7. "LID waiver" means a waiver of the entire Wastewater Connection Charge for the first residential connection (SDU or equivalent flow) per parcel for pre-existing residences in an LID. Other new connectors (pre-existinq multiple -residential or pre-existinq industrial/commercial) pay treatment, trunkaqe, and collection for authorized discharges greater than an SDU. However, in the case of other new connectors, the entire actual collection (lot size) element would be waived. 78. "Lot" shall have the same meaning as in Chapter 15.02. 89. "Lot area" shall have the same meaning as in Chapter 15.02. 910. "Low- or moderate -income facility owner" means a person who owns a single-family residential facility and whose annual income is at or below eighty percent of the median income of the Yakima metropolitan statistical area. Where more than one person has an ownership interest in a residential facility, the term refers to those persons whose combined annual income is at or below eighty percent of the median income of the Yakima metropolitan statistical area. The median income of the Yakima metropolitan statistical area shall be determined by reference to data published by the United States Department of Housing and Urban Development. 4011. "Parcel" shall have the same meaning as "lot." 4412. "Parcel area" shall have the same meaning as "lot area." 4-213. "Sewer" shall have the same meaning as in Chapter 7.65. 1-314. "SDU," "single dwelling unit," "SFD" or "single-family dwelling" shall all have the same meaning as "dwelling, single-family" or "single-family dwelling" in Chapter 15.02. 4-41. "Trunks/interceptors" mean those wastewater system pipes twelve inches or greater in diameter, and related conduits, used to receive wastewater from collection pipes and transport it to the wastewater treatment plant. . "Wastewater" shall have the same meaning as in Chapter 7.65. For purposes of this chapter, "wastewater" does not include "food processing wastewater" defined in Chapter 7.12. 4-617. "Wastewater system" shall have the same meaning as "POTW" or "publicly owned treatment works" in Chapter 7.65 and includes all sewers, pipes, and wastewater treatment plants. For purposes of this chapter, "wastewater system" does not include "food processing wastewater system" defined in Chapter 7.12. -1-i-18. "Wastewater treatment plant" shall have the same meaning as in Chapter 7.65. For purposes of this chapter, "wastewater treatment plant" does not include "food processing wastewater treatment plant" defined in Chapter 7.12. 1--819. "Water meter size" shall be determined by reference to the criteria in the Uniform Plumbing Code or Uniform Building Code as the city may adopt from time to time, provided that any facility not served by the city water division shall determine "water meter size" by the criteria established in AWWA Manual M 22 Sizing Water Service Lines and Meters. 1-920. "Zone 1A" means the area within the city limits of the city of Yakima lying east of 40th Avenue at the time the connection charge established by this chapter is paid. 21. "Zone 1 B" means the area within the city limits of the city of Yakima lying west of 40th Avenue at the time the cr ,nection charge established by this c►- 1pter is paid. —77. "Zone 2" means the area within the urban area established by the 1976 Agreement for Wastewater Treatment and Disposal Service, as amended, excluding Zone 1. 2007 WCC Page 2 of . "Zone 3" means the area outside Zone 1 and Zone 2 but within the Yakima urban growth area boundary, established by the 1997 Yakima urban area comprehensive plan. as that boundary may be revised from time to time." Section 3. Section 7.58.030 of the City of Yakima Municipal Code is hereby amended to read as follows: "7.58.030 Connection to the wastewater system --Connection charge imposed. A. A connection charge is imposed on the owner of any facility to be connected to the wastewater system when the owner of the facility to be so connected has not paid a wastewater connection charge for connecting such facility to the wastewater system, subject to the provisions below. Payment of the connection charge does not convey any ownership interest in the wastewater system. Payment of the connection charge authorizes connection only to the designated lot and is not transferable to any other lot except as provided in Section 7.58.090.D. B. The Wastewater Connection Charge for any facility located on a lot that has participated in a local improvement district (L.I.D.) for wastewater facilities and has fully executed an Outside Utility Agreement, if applicable, shall not exceed that in effect at the time the preliminary assessment roll was passed, provided the Wastewater Connection Charge is fully paid within one year of time the final assessment roll was passed; provided however, C. Within Zone 1A or 1B (inside City) the Wastewater Connection Charge shall be waived (see 1 !D waiver` for any single residential unit(; located on a parcel that has participated in a local improvement district (LID) for wastewater facilities for which the Final Assessment Roll was passed after May 3, 2005 or the LID was init 3, 2005 and prior to the effective day of this ordinance.. The owners of such parcels remain obligated for all LID charges. D. In order to preserve their right to an LID waiver, all parcels that participate in a local improvement district (LID) for wastewater facilities initiated after the effective date of this ordinance must, within one year from the recording of the final assessment roll of such LID, either (1) connect a facility on the parcel to the wastewater system for purposes of regular wastewater service; or (2) have a "placeholder" wastewater account established for the parcel. Customers with a "placeholder" account shall be billed at a flat rate of ten dollars ($10.00) per month ($20 bi-monthly). In the event that an owner fails to make timely payments on a placeholder account, the parcel shall become permanently ineliqible for a LID waiver for that parcel. E. Any participants of an LID that is initiated after the effective date of this ordinance that fail to commence either an active or "placeholder" wastewater account within the time requirement set forth shall, when paying their connection charge, enjoy only a waiver of the parcel size and one SDU equivalent flow toward their actual collection element. F. Parcels that participate in an LID for wastewater facilities either (1) outside of the City Limits (Zones 2 and 3); or (2) within the City limit (Zones 1A and 1 B) for which the Final Assessment Roll was passed prior May 3, 2005, shall enjoy only a waiver of the parcel size and one SDU equivalent flow toward their actual collection element. 2007 WCC Page 3 of 1616 DG. The "Actual Cost" Collection element of the Wastewater Connection Charge for any facility located on a lot within the boundaries of a local improvement district for wastewater facilities that does not participate in said local improvement district shall be the greater of the WCC established by the applicable provision of the Municipal Code or the final assessment of the LID plus interest." Section 4. Section 7.58.040 of the City of Yakima Municipal Code is hereby amended to read as follows: "7.58.040 Calculation of the wastewater connection charge. A. The wastewater connection charge within Zones 1A, 1 B, 2, and 3 shall be calculated based on information and rates existing at the time when payment will be made pursuant to Section 7.58.080 or when a local improvement district final assessment is authorized by the city council. The connection charge within Zones 1 , 2, and 3 shall be equal to the sum of the following elements: 1. Base treatment plant charge (calculated pursuant to Section 7.58.050); 2. Base trunks/interceptors charge (calculated pursuant to Section 7.58.060); 3. Base collection pipes charge (calculated pursuant to Section 7.58.070); 4. City services charge in the amount of six (6%) percent assessed on the sum of the first three elements; 5. Administration charge in the amount of fifty ($50.00) dollars per lot, in addition to any required inspection, permit, or plan review fees; and 6. Wastewater tax, and any other applicable tax, assessed on the sum of the first three elements (pursuant to Chapter 7.64). B. Charges to be Published. The city Code Administration and Planning Manager shall maintain a schedule of current charges within Zones 1A, 1 B, 2, and 3, shall post such schedule conspicuously, and shall make copies available to interested persons. C. Initial Base Charges. Commencing on the effective date of the ordinance codified in this chapter and until amended pursuant to subsection D of this section, wastewater connection charges shall be based upon charges set by this chapter. D. Amendment of Base Charges. The base charges set forth in this chapter may be amended by ordinance of the city council. Such amendments shall become effective no earlier than thirty days after publication. E. Connection charge for properties not within Zones 1 , 2, rd --or 3. Any person wishing to connect facilities located on property outside Zones 1 A, 1B, 2, armor 3 shall contact the wastewater manager. Such properties may be connected only upon the written approval of the city manager, and only upon payment of a connection fee established in an amount sufficient to allocate to the applicant an equitable share of the cost of the existing wastewater system and a reasonable estimate of the actual cost of connection (including costs associated with expanding the system)." Section 5. Section 7.58.050 of the City of Yakima Municipal Code is hereby amended to read as follows: "7.58.050 Base treatment plant charge. A. The base treatment plant charge includes both an equitable share of the cost of the existing wastewater treatment plant ("historic cost") and a reasonable estimate of the actual cost of connection to the wastewater treatment plant (including costs associated with expanding the plant) ("actual cost"). 2007 WCC Page 4 of B. For accounts discharging "domestic wastewater", the amount of this charge is a function of the amount of water flowing to the facility to be connected and the zone in which the facility is located. The treatment plant charge for single dwelling units (SDUs) is uniform within each zone. The treatment plant charge for non-residential accounts shall be determined by applying the unit cost listed below to the customer's authorized discharge flow. No charge shall be imposed for any water meter installed for the sole purpose of irrigation or fire flows. The base treatment plant charge for a particular facility shall be determined by reference to the following chart: DOMESTIC WASTEWATER Category SDU residential 2 A i unit 80% of SDU per unit residential 5+ units 64% of SDU per unit Non-residential (-per gatlon) Category SDU residential 2 4 units residential 5+ units Zone 1 $662,46 529.73 per unit P: ! ! _ Zone --2 $66246 529.73 per unit Zone -3 729.10 per unit 423.78 per unit 4234 -8 -per unit 583.28 per unit 2,488 2-498 3.437 Zone 1 Zone -2 Zone -3 $682.02 $682,02 $93374 545,62 -per 645,62 -per-unit 750.97 per unit 436.50 per unit 4360 -per -nit 600.78 per unit 2.573 2.573 3.540 SDU Zone 1A Zone 1B Zone 2 Zone 3 From Jan 14, Historic $193.02 $193.02 $193.02 $487.89 2008 to Dec 31, Actual $533.18 $533.18 $533.18 $533.18 2008 Total $726.20 $726.20 $726.20 $1,021.07 From Jan 1, Historic $258.11 $258.11 $258.11 $598.64 2009 to Dec 31, Actual $532.12 $532.12 $532.12 $532.12 2009 Total $790.23 $790.23 $790.23 $1,130.76 Effective Jan 1, Historic $265.85 $265.85 $265.85 $616.60 2010 Actual $548.08 $548.08 $548.08 $548.08 Total $813.94 $813.94 $813.94 $1,164.68 2007 WCC 12/6/074.2,6,87 Page 5 of 1616 C. The charge for multi -unit housing on a single parcel shall be converted to "single dwelling units" or SDUs by the following scale: 2-4 units per parcel = 0.8 SDU per unit 5 or more units per parcel=0.64 SDUs per unit. Multi -unit includes trailer park spaces on single parcels. Category Zone 1 Zone -2 Zone -3 SD -U $702,48 $702-48 $966.87 redential 22-4 units 561.99 per unit 561.99 per unit 773.50 per unit residential 5+ unit& 449.60 per unit 449.60 per unit 618.80 per unit (per gation) 2.650 2.650 3-646 Non-residential Zone 1A Zone 1B Zone 2 Zone 3 From Jan 14, Historic $0.728 $0.728 $0.728 $1.840 2008 to Dec 31, Actual $2.012 $2.012 $2.012 $2.012 2008 Total $2.740 $2.740 $2.740 $3.852 From Jan 1, Historic $0.974 $0.974 $0.974 $2.259 2009 to Dec 31, Actual $2.008 $2.008 $2.008 $2.008 2009 Total $2.982 $2.982 $2.982 $4.267 Effective Jan 1, Historic $1.003 $1.003 $1.003 $2.327 2010 Actual $2.068 $2.068 $2.068 $2.068 Total $3.071 $3.071 $3.071 $4.395 . For Non-residential Domestic Wastewater customers, the Base Treatment Plant charges shall be established by the wastewater manager using the unit price listed above and the amount of water (hydraulic flow), discharged by the facility as allowed by its Discharge Authorization. Refer to YMC 7.65. . For Non-domestic Discharger accounts, the amount of this charge is a function of the amount of water (hydraulic flow), Biochemical Oxygen Demand (BOD), and Total Suspended Solids (TSS) discharged by the facility as allowed by its Discharge Authorization. Refer to YMC 7.65. Constituent •:. - . - . .. / 1 r. Zone -1 Zone 2 2007 WCC 12/6/073246107 Page 6 of 161-6 Zone -3 max mn) $0:456 $0.456 $0.626 421.30 421.30 609.30 mn) 314.08 3444)-8 509.24 Non-Domestic Zone 1A Zone 1B Zone 2 Zone 3 Hydraulic From Jan 14, Historic $0.142 $0.142 $0.142 $0.356 2008 to Dec 31, Actual $0.385 $0.385 $0.385 $0.385 2008 Total $0.527 $0.527 $0.527 $0.741 From Jan 1, Historic $0.195 $0.195 $0.195 $0.452 2009 to Dec 31, Actual $0.402 $0.402 $0.402 $0.402 2009 Total $0.597 $0.597 $0.597 $0.854 Effective Jan 1, Historic $0.201 $0.201 $0.201 $0.466 2010 Actual $0.414 $0.414 $0.414 $0.414 Total $0.615 $0.615 $0.615 $0.880 Non-domestic Zone 1A Zone 1B Zone 2 Zone 3 BOD From Jan 14, Historic $132.540 $132.540 $132.540 $337.800 2008 to Dec 31, Actual $302.235 $302.235 $302.235 $302.235 2008 Total $434.775 $434.775 $434.775 $640.035 From Jan 1, Historic $168.580 $168.580 $168.580 $391.100 2009 to Dec 31, Actual $279.670 $279.670 $279.670 $279.670 2009 Total $448.250 $448.250 $448.250 $670.770 Effective Jan 1 Historic $173.637 $173.637 $173.637 $402.833 2010 Actual $288.060 $288.060 $288.060 $288.060 Total $461.698 $461.698 $461.698 $690.893 Non-domestic Zone 1A Zone 1B Zone 2 Zone 3 TSS From Jan 14, Historic $137.305 $137.305 $137.305 $345.170 2008 to Dec 31, Actual $272.740 $272.740 $272.740 $272.740 2008 Total $410.045 $410.045 $410.045 $617.910 2007 WCC 12/6/0712k31O7 Page 7 of From Jan 1, Historic $189.830 $189.830 $189.830 $440.400 2009 to Dec 31, Actual $286.180 $286.180 $286.180 $286.180 2009 Total $476.110 $476.110 $476.110 $726.580 Effective Jan 1, Historic $195.525 $195.525 $195.525 $453.612 2010 Actual $294.765 $294.765 $294.765 $294.765 Total $490.290 $490.290 $490.290 $748.377" Constituent Zone . Zone 2 rnax mn) $0-4-70 $8-478 433.94 433.94 TSS-{44)/av-da ax 2 mn) 354.40 354.49 Zone -3 $9:647 62-7--58 Effective 1 num 7 7 e 2 07 Constituent Zone -1- Zone -2 Zane -3 max mn) $0-480 $8-430 $6:-666 44.6-96 446-96 646.41 TSS (Ib/av day max 365,03 365.03 540:-26 Section 6. Section 7.58.060 of the City of Yakima Municipal Code is hereby amended to read as follows: "7.58.060 Base trunk/interceptors charge. A. The base trunks/interceptors charge includes both an equitable share of the cost of the existing trunks/interceptors ("historic cost") and a reasonable estimate of the actual cost of connection to the trunks/interceptors (including costs associated with expanding the trunks/interceptors system) ("actual cost"). This charge is the sum of two separate calculations. The first calculation is a function of the size of the lot to be connected. The "parcel size" portion of the base trunks/interceptors charge shall be determined by multiplying the lot area (measured in square feet (sf)) by the rate given in Table A- (Trunk/parcel size) for the zone in which the lot is located. The second calculation is a function of the flow from each connection. The "flow" portion of the base trunks/interceptors charge shall be determined by multiplying the customer's authorized flow (measured in gallons per day (gpd)) by the rate given in Table B-(Trunk/flow) for the zone in which the lot is located. 2007 WCC Page 8 of B. The wastewater manager may waive all or a portion of the actual cost element of the base trunks/interceptors charge if the lot owner or developer extends a trunk/interceptor from the existing trunk/interceptor through or along the entire length of the lot as required by the sewer comprehensive planning analysis for the area. From Effective Date-gh Dec. 31, 2005: From Jan. 1 to D . Effective Jan. 1, 2007: From Jan 14, 2008 to Dec 31, 2008 From Jan 1, 2009 to Dec 31, 2009 Effective Jan 1 2010 From Effective Date -throes Dec. 31, 2005: Historic Actual Total Table A-(Trunk/parcel size) Times square feet Zone '1 $0.006 02 0.028 t�fte z $0-040 0,094 0.1-04 f_ -014e4 $0-020 0.133 0.153 Historic 0.006 0.010 0.021 Actual 0.023 0-094 0.137 Total 0.029 0.104 0458 Historic 0-006 0.011 0.021 Astral 0.023 0.097 0.141 Total 0-.030 0-407 0.162 Zone lA Zone 1B Zone 2 Zone 3 Historic $.007 $.010 $.011 $.029 Actual $.013 $.021 $.090 $.126 Total $.020 $.031 $.101 $.155 Historic $.007 $.014 $.010 $.037 Actual $.002 $.018 $.083 $.110 Total $.009 $.032 $.093 $.147 Historic $.007 $.014 $.010 $.038 Actual $.002 $.019 $.085 $.113 Total $.009 $.033 $.095 $.151 Historic Actual Total Table-B-(TfunkinaW) Zene4 Zone -2 $0-1-72 $0.235 0.853 4.308 1.025 /1.513 2007 WCC 12/6/071216107 Page 9 of 1616 Zone -3 $0.355 6.951 7-309 From Jan. 1 to Historic 0.177 0.242 0-366 Dec. 31, 2006: Actual 5479 4.437 7.163 Total 1.056 4.679 7.528 Effective Jan. 1, Historic 0482 0.249 0-377 2007: Actual 0-905 4.570 7.377 Total 1.087 4.820 7.754 Table B-(Trunk/flow) Times gallons per day Zone 1A Zone 1B Zone 2 Zone 3 From Jan 14, Historic $.19 $.279 $.383 $1.16 2008 to Dec 31 Actual $.578 $.989 $4.835 $7.068 2008 Total $.768 $1.268 $5.218 $8.228 From Jan 1, Historic $.197 $.375 $.517 $1.943 2009 to Dec 31 Actual $.251 $1.073 $5.099 $6.759 2009 Total $.448 $1.448 $5.616 $8.702 Effective Jan 1, Historic $.203 $.386 $.533 $2.001 2010: Actual $.259 $1.105 $5.252 $6.962 Total $ 462 $1.491 $5.785 $8.963 Section 7. Section 7.58.070 of the City of Yakima Municipal Code is hereby amended to read as follows: "7.58.070 Base collection pipes charge. A. The base collection pipes charge includes both an equitable share of the cost of the existing collection pipes ("historic cost") and a reasonable estimate of the actual cost of connection to the collection pipes (including costs associated with expanding the collection pipes system) ("actual cost"). This charge is the sum of two separate calculations. The first calculation is a function of the size of the lot to be connected. The "parcel size" portion of the collection pipe charge shall be determined by multiplying the lot area (measured in square feet (sf)) by the rate given in Table C-(Collection/parcel size) for the zone in which the lot is located. The second calculation is a function of the flow from each connection. The "flow" portion of the base collection pipe charge shall be determined by multiplying the customer's authorized flow (measured in gallons per day (gpd)) by the rate given in Table D-(Collection/flow) for the zone in which the lot is located. B. The wastewater manager may waive all or a portion of the actual cost element of the base collection pipes charge if: (a) the lot is served by a collection pipe system installed and paid for by the developer of the lot; (b) the lot owner extends a collection pipe from the existing collection pipe system through or along the entire length of the lot as 2007 WCC Page 10 of required by the sewer comprehensive planning analysis for the area; (c) the lot is connected to a collection pipe system originally financed by local improvement district assessments to which contribution was made for the lot: or (d) within Zone 1A, or1 B, the lot is served by an existing collection pipe system installed by the City or other governmental agency and is within City of Yakima census tract: 01, 02, 03, 05, 06, 07, 12, 13, 14, 15, 16 or 17. C. Within Zone 1A. or 1E, the wastewater manager may waive fifty percent (50%) of the actual cost element of the base collection pipes charge if the lot is served by a collection pipe system installed and paid for by a developer other than the developer of the lot. • Fr�4i•t Ftt@ a*i-cE:irvc ucrEc if rive r+acvci=iii.i�f= 31, 2005, vi'ithin Zornd 1, the warstewatef for by a developer other than the developer of the lot. From Effective Date -through Dec. 31, 2005: From Jan. 1 to Dec. 31, 2006: Historic Actual Total Historic Actual Total Effective Jan. 1, Historic 2007: Actual Total From Jan 14, 2008 to Dec 31, 2008 From Jan 1, 2009 to Dec 31, 2009 2007 WCC 12/6/0712/6107 Historic Actual Total Historic Actual Total Times -square -feet Zone -t Zone -2 0.310 0,34-0 0,3420.326 0.033 0,34--9 0.352 0.034 0.329 0.363 0-04-6 0.319 0-336 0.017 0.329 0.346 Table C-(Collection/parcel sizel Times square feet Zone 1A Zone 1B $.030 $.038 $.351 $.351 $.381 $.389 $.026 $.372 $.398 $.041 $.372 $.413 Page 11 of 1616 Zone 2 $.018 $.351 $.369 $.019 $.372 $.391 Zone -3 $0.002 0-34-0 0.312 0.002 0.319 0.321 0.002 0.329 0.331 Zone 3 $.003 $.351 $.354 $.004 $.372 $.376 Effective Jan 1, 2010: From Effective Date -trough Dec. 31, 2005: From Jan 1 to Dec. 31, 2006: Effective Jan. 1, 2007: Historic Actual Total Historic Actual Total Historic Actual Total Historic Actual Total From Jan 14, Historic 2008 to Dec 31, Actual 2008 Total From Jan 1, Historic 2009 to Dec 31, Actual 2009 Total From Jan 1, Historic 2010 Actual Total 2007 WCC $.027 $.383 $.410 $.042 $.383 $.425 Zone -1 Zone 2 $4065 10.355 1.420 1.097 40`.666 11.763 4 10.986 12.115 $0.355 10.355 10.710 0:366 10.666 11.031 0.377 10.986 11.362 $.020 $.383 $.403 $.004 $.383 $.387 Zone -3 $0,037- 10.355 0.03710.355 10.392 0.038 10.666 10.701 0.039 a-0.966 11.025 Table D-(Collection/flow) Times gallons per day Zone 1 A Zone 1B Zone 2 Zone 3 $.976 $1.087 $.493 $.081 $11.813 $11.813 $11.813 $11.813 $12.789 $12.90 $12.306 $11.894 $.821 $12.640 $13.461 $.846 $13.019 $13.865 $1.044 $12.640 $13.684 $1.075 $13.019 $14.094 Page 12 of $.609 $12.640 $13.249 $.627 $13.019 $13.646 $.122 $12.640 $12.762 $.126 $13.019 $13.145 Section 8. Section 7.58.075 of the City of Yakima Municipal Code reads as follows: 7.58.075 Maximum lot size. A. For single -dwelling units, a maximum parcel size of twelve thousand square feet (12,000 sf) shall be utilized in calculating charges under Sections 7.58.060 and 7.58.070. B. For facilities other than single -dwelling units (i.e. multi -unit residential, industrial or commercial facilities), the maximum parcel size utilized in calculating charges under Sections 7.58.060 and 7.58.070. shall be of the greater of fifty thousand square feet (50,000 sf) or one hundred -ten percent (110%) of the footprint of the connected buildings." Section 9. Section 7.58.080 of the City of Yakima Municipal Code reads as follows: 7.58.080 Time of payments--Lien--Suspension of service. A. For Domestic Dischargers, wastewater connection charges shall be paid in full at or before the time a side sewer permit is obtained. B. For Non -Domestic Dischargers, wastewater connection charges, based upon their initial Discharge Authorization, shall be paid in full at or before the time a side sewer permit is obtained. Any fees due from recalculation of charges (7.58.090) shall be paid within thirty (30) days of receiving notice. Unpaid charges shall constitute a lien against the connected property. Such lien shall be prior to all liens and encumbrances filed subsequent to its filing with the county auditor, except the lien of general taxes and local improvement assessments whether levied prior or subsequent thereto. Section 10. Section 7.58.085 of the City of Yakima Municipal Code reads as follows: 7.58.085 Alternative, periodic payment method. A. At any time prior to connection of a facility to the wastewater system, the owner of that facility may apply to the code administration and planning division for periodic payment of the applicable connection charge, provided that: (1) the facility owner is a low- or moderate -income facility owner; (2) the facility is the facility owner's primary and legal residence; (3) a certificate of occupancy has been issued for the facility and that certificate remains valid; (4) the facility is connected to a private septic system or some system of sewerage other than the wastewater system; and (5) the connection charge applicable to the facility is equal to or greater than one thousand ($1,000) dollars. This periodic payment method shall be an alternative to payment of the full connection charge prior to connection pursuant to YMC 7.58.080(A). B. To apply for the periodic payment method provided by this section, the facility owner must execute a request form to be provided by the code administration and planning division. The request form shall be in the form of a contract between the facility owner and the city, and the general form of the request form shall be approved by the city attorney and city manager. C. At the time of delivery to the facility owner, the request form shall state the amount of the applicable connection charge and the number and amount of quarterly payments. The code administration and planning division shall determine the amount of the connection charge by reference to Sections 7.58.040 through 7.58.090. The code administration and planning division shall also calculate a substantially equal, quarterly payment amount sufficient to pay the entire principal amount of the connection charge, together with interest thereon at an annual interest rate equal to the prime rate as quoted 2007 WCC Page 13 of in the Wall Street Journal on the last business day of the month preceding preparation and delivery of the request form to the facility owner, within three years of the date of connection if the applicable connection charge is less than or equal to five thousand ($5,000) dollars, or within five (5) years of the date of connection if the applicable connection charge is more than five thousand ($5,000) dollars. The first quarterly payment shall be due three (3) months after the date of connection. D. The facility owner shall provide the remaining information required by the request form and execute the request form. E. The city shall not accept or execute the original or any updated request form unless: (1) the facility owner qualifies as a low- or moderate -income facility owner; (2) the form is first executed by the facility owner; (3) the applicable connection charge has not changed from that stated on the request form; (4) the prime rate as quoted in the Wall Street Journal on the last business day of the month preceding presentation of the executed Request Form by the facility owner has not changed; and (5) the facility owner has paid a one hundred ($100) dollar administrative fee for processing the request form and administering the installment payment program. F. If either the applicable connection charge or the prime rate as quoted in the Wall Street Journal on the last business day of the month preceding presentation of the executed request form by the facility owner has changed, the city Code Administration and Planning Manager shall revise the terms and quarterly payment amount to reflect such changes, and shall return an updated request form to the facility owner, who may execute the updated request form and return it to the city Code Administration and Planning Manager for acceptance and execution by the city. G. Once the city has executed the request form, the connection charge, interest rate, and periodic payments applicable to the subject property shall not be changed from that amount stated in the request form for a period of ninety (90) days from the date of final execution by the city. In the event that the facility owner fails to complete the connection within ninety (90) days from the date of final execution by the city, the facility owner must request, complete, and submit a new request form, which shall be subject to the requirements of this section. H. Nothing in this section shall be construed to limit the city's authority to collect any delinquent connection charge payment or payments, including the city's authority to impose a lien or shut off water service as provided in Chapter 35.67 RCW. For purposes of a lien imposed pursuant to Chapter 35.67 RCW, any delinquency of four quarterly payments shall constitute a delinquency of one year's charges subject to a sewerage lien and that lien shall be effective without the necessity of any writing or recording of the lien. Section 11. Section 7.58.090 of the City of Yakima Municipal Code reads as follows: 7.58.090 Recalculation of charges. A. Improvement, Change in Use. In the event any Domestic facility, lot, tract or parcel is improved, or the use thereof or discharge therefrom is changed or intensified, then the amount of the connection charge is subject to recalculation and increase according to Sections 7.58.040 through 7.58.075. Credit shall be allowed for the previously established flow, provided that, in no case shall the credit exceed the cost of the charge. Any such increase shall be paid in the time and manner specified by Section 7.58.080. A parcel for which the Capital Cost Recovery Charge (CCRC) has been paid or that has participated in an LID but has not yet connected to the wastewater system shall be credited with the current value of a Single Dwelling Unit (SDU) connection. 2007 WCC 12/6107121647 Page 14 of B. Additional Subdivision of Lots. At such time that any existing lot connected to the wastewater system is subdivided, a wastewater connection charge shall be assessed against each new lot formed. No additional charge shall be imposed upon the lot where the facilities that were originally connected are located. unless an increase in flow or intensity of use is involved. Any additional charges due as a result of subdivision shall be determined as set forth in subsection A of this section and shall be paid in the time and manner specified in Section 7.58.080. C. Altered Discharge. In the event discharge from any Non-domestic facility, lot, tract or parcel is altered, or the use thereof is changed or intensified then the amount of the applicable wastewater connection charge is subject to recalculation according to Sections 7.58.040 through 7.58.075. Credit shall be allowed for the facility's existing Authorized or Permitted Discharge, provided that in no case shall the credit exceed the cost of the recalculated charge. Any such increase shall be paid in the time and manner specified by Section 7.58.080.B. As an additional and concurrent method of collection of any such delinquent wastewater connection charges, the customer service manager may suspend the water service or supply to the premises under the same authority provided in Section 7.60.100. D. Relocation of Public Facility. In the event that an existing, governmentally -owned, public facility, as defined by RCW 36.70A.030, is moved from one lot to another adjacent or nearby lot, the wastewater manager may in his discretion provide a credit against the wastewater connection charge due at the new lot as follows. 1. A determination of the flow and intensity of wastewater historically used prior to January 2005, or for which a connection charge has already been paid at the current location of the facility. 2. A determination the flow and intensity of wastewater that is expected to remain being discharged at current location of the facility after the facility has been moved to the new lot. 3. A determination the flow and intensity of wastewater that is expected to be discharged at the new location of the facility. 4. The difference between #1 and #2 determines what flow/loading may be available for transfer to the new lot. 5. The Connection charge shall be determined by utilizing the difference between the flow/loading for the new lot as found by #3 and that transferred from the current lot as found by #4. The division manager may require, as a condition precedent to the issuance of any credit, that the Discharger and the owners of the current lot and the new lot execute, acknowledge and record, a Notice of Wastewater Connection Fees specifying the terms and conditions upon which additional charges may be due." Section 12. Section 7.58.095 of the City of Yakima Municipal Code reads as follows: 7.58.095 Reimbursable Agreements. Wastewater reimbursable agreements may be available to an owner of newly connecting wastewater facilities when such owner, as determined by the City Engineer, builds 2007 WCC Page 15 of collection and/or trunks/interceptors infrastructure that both conforms to the Wastewater Comprehensive Plan and also provides collection and/or trunks/interceptor facilities that are in excess of the facilities required to serve the owner's facilities. Reimbursable agreements shall provide for payment to the owner of a fair pro rata share of the cost of facilities that are in excess of the facilities needed to serve the owner's facilities. Any such payment will be derived from connection fees paid by any owner of real estate who did not contribute to the initial owner's original cost of such wastewater facilities but who subsequently taps into or uses such facilities. The terms and conditions of any proposed reimbursable agreement must be established prior to the construction of a project and are subject to review and approval by the City Council. The duration of a reimbursable agreement shall not exceed fifteen (15) years. Section 13. Section 7.58.100 of the City of Yakima Municipal Code reads as follows: 7.58.100 Money to be credited to wastewater operating fund. All moneys collected pursuant to this chapter shall be paid into and credited to the wastewater operating fund as provided in Chapter 3.101. Section 14. This ordinance shall be in full force and effect 30 days after its passage, approval, and publication as provided by law and by the City Charter. A certified copy of this ordinance shall be recorded by the clerk of the City Council in the office of the Yakima County Auditor. PASSED BY THE CITY COUNCIL at a regular meeting and signed and approved this 11th day of December, 2007. ATTEST: Deborah Moore City Clerk Publication Date: Effective Date: 2007 WCC Page 16 of 161-6 / / i David Edler, Mayor BUSINESS OF THE CITY COUNCIL YAKIMA, WASHINGTON TRANSMITTAL MEMO FOR October 30, 2007 COUNCIL STUDY SESSION ITEM TITLE: Proposed Revisions to the Wastewater Connection Charge (WCC) Study and Subsequent Revisions to Wastewater Connection Rates and Charges. SUBMITTED BY: Dick Zais, City Manager Dave Zabell, ACM Doug Mayo, Wastewater Division Manager CONTACT PERSON/TELEPHONE: Doug Mayo/575-6077 SUMMARY EXPLANATION: Under current City policy, costs for capital improvements that are driven by regulations and renewal/safety are included in the monthly service charges. Costs caused by growth are allocated to the new customers through the Wastewater Connection Charge (WCC). The WCC serves two important functions within the Wastewater revenue stream. 1) The equitable share of existing facilities ("Historic Cost") element of this charge is the method through which the City is partially reimbursed for prior investments made to construct existing wastewater facilities to be used by new customers. 2) The actual (including future) connection costs element of this charge will be the method through which the City generates the revenue necessary to construct new wastewater facilities required to accommodate the additional waste stream from new customers. A report entitled 1997 Wastewater Connection Charge Study dated May 20, 1997, was adopted by resolution R-97-83. Ordinance 97-38 was enacted setting related WCC rates and policies. Resolution 2004-181 adopted a major update, done in 2004. Ordinance 2004-69 was enacted setting related WCC rates and policies. In May of 2005, Council reconsidered a select few issues and passed Ordinance 2005-22 that supplemented and clarified the connection rates and charges. Ordinance 2004-69 set rates for a three-year period. Rates were set with a 3% annual escalator, the last adjustment being January 2007. Review of the 2004 Study and current WCC 2007 Update rate structure has identified the following reasons why an updated Study is necessary and justified: 1) Since the 2004 Study, construction costs have escalated beyond what was anticipated; 2) This report proposes the creation of a second Zone within the City. Zone 1A being that area of the City lying east of 40th Avenue and Zone 1B being west of 40th Avenue. Recent annexations shifted the burden of considerable infrastructure (interceptors), from Outside City (Zone 2) to Inside City (Zone 1) future customers. This proposal will lift the burden for this infrastructure from those east of 40th, which lowers their rates. However, it concentrates this burden on the area west of 40th, effectively increasing their rates. In summary, items reviewed which affected revisions in the attached report and rate ordinance included: 1) reviewed projection of anticipated facility loading based upon 2004 Wastewater Facility Plan; 2) updated projection of future connected area based upon adopted City Comprehensive Plan; 3) updated City's Equity portion of historic Cost 4) reviewed capacity of existing treatment facility per 2004 Wastewater Facility Plan; 5) updated future "Treatment" expense due to NPDES mandates and 2004 Wastewater Facility Plan requirements; 6) re -allocation between zones of future and existing trunks due to most recent annexations; 7) update of connected acreage per current information; 8) updated appropriate cost for units of hydraulic, biochemical oxygen demand and total suspended solids. 9) reviewed waivers to include only "Future" element of applicable charge. This proposal continues Council policy to allow a waiver of the "Future" element of applicable charges under certain circumstance; usually the construction of infrastructure. This proposal continues Council policy that proposed rates will look both at the actual amount of flow from each account and at the strength of this discharge. Thereby, connection charges will more fairly reflect the actual impact on the treatment system. This proposal continues Council policy that Wastewater Reimbursable Agreements be limited to projects that, as determined by the Wastewater Manager, build infrastructure that conforms to the Wastewater Comprehensive Plan. The terms and conditions for all Reimbursable Agreements must be established prior to the construction of a project. WCC 2007 Update ATTACHMENT 1 compares the existing WCC and the proposed WCC for two sized parcels (8,000sf and 12,000sf) in each Zone. The proposed increase on any individual customer would depend on several variables including the size of their parcel and any waivers. This sheet illustrates the impact of concentrating the burden of the new City infrastructure on Zone 1B. The estimated rate adjustment a Single Dwelling Unit (SDU) within each Zone is as follows: Zone 1A - 22% Zone 1B 11% Zone 2 5% Zone 3 5% At Council's direction, staff will prepare legislation to enact the herein described adjustments in two phases. Phase 1 to be in effect in early 2008 will adjust each Zone to one-half the change indicated. Phase 2 in January. of 2009 will complete the adjustment. In January of 2010 rates will be increased an additional 3%for escalation of construction costs. REQUESTED ACTION: Staff respectfully requests City Council review and analyze this study, which will be submitted as a policy issue with the 2008 budget for action during the budget process. A Public Hearing on this issue will be held on November 20, with Council Action scheduled for early December. In the interim, staff will schedule meetings with council committees and with various community groups to discuss the Study's recommendations. WCC 2007 Update ITEM 1111E: BUSINESS OF THE CITY COUNCIL YAKIMA, WASHINGTON AGENDA STATEMENT Item No. I6- 2-1 For Meeting Of December 11, 2007 Request for Council Action on: A) the 2007 Wastewater Cost of Service and Rate Study; and B) the 2007 Wastewater Connection Charge Study. SUBMITTED BY: Dick Zais; City Manger Dave Zabell; Assistant City Manger Rita Anson; Finance Director Doug Mayo; Wastewater Manager CONTACT PERSON/TELEPHONE: Doug Mayo 575-6077 SUMMARY EXPLANATION: The 2007 Wastewater Cost of Service and Rate Study and the 2007 Wastewater Connection Charge Study were the subject of a Council Study Session held October 30, 2007. Both items were presented as Policy Issues in the 2008 budget. An Open Record Public Hearing on budget Policy Issues was held November 20, 2007. City Council again discussed these policies as part of the Wastewater Division's budget review on November 27, 2007. On December 4th, 2007, Council adopted the policies as amended from public comments and directed the preparation of adopting legislation. The proposed ordinances also include some minor language adjustments for clarification and compatibility with other City ordinances. Please refer to the following transmittals and memo. Resolution 2 Ordinance 2 Other (Specify) Contract Mail to (name and address): Phone Funding Source All wastewater customer classes and new Customers APPROVED FOR SUBMITTAL: STAFF RECOMMENDATION: Staff respectfully requests City Council to: A-1) adopt, by resolution, the 2007 Wastewater Cost of Service and Rate Study; and A-2) enact, by ordinance (YMC 7.60), the 2007 Wastewater Cost of Service recommendations as approved by Council; and 6-3) adopt, by resolution, the 2007 Wastewater Connection Charge Study; and B-4) enact, by ordinance (YMC 7.58), the 2007 Wastewater Connection Charge Study recommendations as approved by Council. BOARD/COMMISSION RECOMMENDATION: COUNCIL ACTION: 2007 Wastewater Connection Charge Study CITY OF YAKIMA WASTEWATER UTILITY 2007 WASTEWATER CONNECTION CHARGE STUDY DRAFT SECTIONS 1 THROUGH 3 October, 2007 by Wastewater Staff BUSINESS OF THE CITY COUNCIL YAKIMA, WASHINGTON TRANSMITTAL MEMO FOR October 30, 2007 COUNCIL STUDY SESSION ITEM TITLE: Proposed Revisions to the Wastewater Connection Charge (WCC) Study and Subsequent Revisions to Wastewater Connection Rates and Charges. SUBMITTED BY: Dick Zais, City Manager Dave Zabell, ACM Doug Mayo, Wastewater Division Manager CONTACT PERSON/TELEPHONE: Doug Mayo/575-6077 SUMMARY EXPLANATION: Under current City policy, costs for capital improvements that are driven by regulations and renewal/safety are included in the monthly service charges. Costs caused by growth are allocated to the new customers through the Wastewater Connection Charge (WCC). The WCC serves two important functions within the Wastewater revenue stream. 1) The equitable share of existing facilities ("Historic Cost") element of this charge is the method through which the City is partially reimbursed for prior investments made to construct existing wastewater facilities to be used by new customers. 2) The actual (including future) connection costs element of this charge will be the method through which the City generates the revenue necessary to construct new wastewater facilities required to accommodate the additional waste stream from new customers. A report entitled 1997 Wastewater Connection Charge Study dated May 20, 1997, was adopted by resolution R-97-83. Ordinance 97-38 was enacted setting related WCC rates and policies. Resolution 2004-181 adopted a major update, done in 2004. Ordinance 2004-69 was enacted setting related WCC rates and policies. In May of 2005, Council reconsidered a select few issues and passed Ordinance 2005-22 that supplemented and clarified the connection rates and charges. Ordinance 2004-69 set rates for a three-year period. Rates were set with a 3% annual escalator, the last adjustment being January 2007. Review of the 2004 Study and current WCC 2007 Update rate structure has identified the following reasons why an updated Study is necessary and justified: 1) Since the 2004 Study, construction costs have escalated beyond what was anticipated; 2) This report proposes the creation of a second Zone within the City. Zone 1A being that area of the City lying east of 40th Avenue and Zone 1B being west of 40th Avenue. Recent annexations shifted the burden of considerable infrastructure (interceptors), from Outside City (Zone 2) to Inside City (Zone 1) future customers. This proposal will lift the burden for this infrastructure from those east of 40th which lowers their rates. However, it concentrates this burden on the area west of 40th, effectively increasing their rates. In summary, items reviewed which affected revisions in the attached report and rate ordinance included: 1) reviewed projection of anticipated facility loading based upon 2004 Wastewater Facility Plan; 2) updated projection of future connected area based upon adopted City Comprehensive Plan; 3) updated City's Equity portion of historic Cost 4) reviewed capacity of existing treatment facility per 2004 Wastewater Facility Plan; 5) updated future "Treatment" expense due to NPDES mandates and 2004 Wastewater Facility Plan requirements; 6) re -allocation between zones of future and existing trunks due to most recent annexations; 7) update of connected -acreage per current information; 8) updated appropriate cost for units of hydraulic, biochemical oxygen demand and total suspended solids. 9) reviewed waivers to include only "Future" element of applicable charge. This proposal continues Council policy to allow a waiver of the "Future" element of applicable charges under certain circumstance; usually the construction of infrastructure. This proposal continues Council policy that proposed rates will look both at the actual amount of flow from each account and at the strength of this discharge. Thereby, connection charges will more fairly reflect the actual impact on the treatment system. This proposal continues Council policy that Wastewater Reimbursable Agreements be limited to projects that, as determined by the Wastewater Manager, build infrastructure that conforms to the Wastewater Comprehensive Plan. The terms and conditions for all Reimbursable Agreements must be established prior to the construction of a project. WCC 2007 Update ATTACHMENT 1 compares the existing WCC and the proposed WCC for two sized parcels (8,000sf and 12,000sf) in each Zone. The proposed increase on any individual customer would depend on several variables including the size of their parcel and any waivers. This sheet illustrates the impact of concentrating the burden of the new City infrastructure on Zone 1B. The estimated rate adjustment a Single Dwelling Unit (SDU) within each Zone is as follows: Zone 1A - 22% Zone 1B 11% Zone 2 5% Zone 3 5% At Council's direction, staff will prepare legislation to enact the herein described adjustments in two phases. Phase 1 to be in effect in early 2008 will adjust each Zone to one-half the change indicated. Phase 2 in January of 2009 will complete the adjustment. In January of 2010 rates will be increased an additional 3% for escalation of construction costs. REQUESTED ACTION: Staff respectfully requests City Council review and analyze this study, which will be submitted as a policy issue with the 2008 budget for action during the budget process. A Public Hearing on this issue will be held on November 20, with Council Action scheduled for early December. In the interim, staff will schedule meetings with council committees and with various community groups to discuss the Study's recommendations. WCC 2007 Update lot size (sf.) Existing Proposal Existing Proposal 8,000 8,000 $ increase ' % increase Existing Proposal 12,000 12,000 $ increase % increase lot size (sf.) Existing Proposal 8,000 8,000 $ increase % increase 12,000 12,000 $ increase % increase ATTACHMENT 1 Wastewater Connection Charge Comparison Existing v. Proposed x Future collection element WAIVED Zone 1 A Zone 1B $ 2,202.78 $ 2,202.78 $ $ 1,714.98 $ 2,446.68 $ $ (487.80) $ 243.90 $ - 22% 11% $ 2,505.18 $ 2,505.18 $ $ 1,882.98 $ 2,797.08 $ $ (622.20) $ 291.90 $ - 25% 12% Future collection element INCLUDED Zone 1A Zone 1B $ /2 5,528.76 $ 5,396.58 $ (132.18) $ -2% $ 6,620.76 $ $ 6,457.38 $ $ (163.38) $ - 2% /2 5,528.76 6,128.28 599.52 11% Zone 2 3,745.30 $ 3,940.98 $ 195.68 $ 5% 4,345.30 $ 4,478.58 $ 133.28 $ 3% Zone 2 $ 10,397.25 $ 11,304.18 $ 906.93 9% 6,620.76 $ 7,371.48 $ 750.72 $ 11% Zone 3 5,262.82 5,503.71 240.89 5% 6,050.02 6,228.51 178.49 3% Zone 3 $ 11,914.77 $ 12,866.91 $ 952.14 8% 12,576.45 $ 13,627.38 $ 1,050.93 $ 8% 14,281.17 15,377.31 1,096.14 8% PROPOSED WASTEWATER CONNECTION CHARGE SECTION 1 Introduction: A report entitled 1997 Wastewater Connection Charge Study proposed that the then existing Capital Cost Recovery Charge (CCRC) and Sewer Connection Charge (SCC) be updated and combined into a single Wastewater Connection Charge (WCC). The 1997 Study was adopted by resolution R-97-83. Ordinance 97-38 was enacted setting related WCC rates and policies. On November 11, 2004, a 2004 Study and Updated Rate Structure was enacted by Ordinance 2004-69. This study identified three reasons why an updated Study was necessary and justified: 1) The adopted 2004 Wastewater Facility Plan (Plan) provided updated information on both anticipated customer growth and growth related system expenses; 2) A recent ruling of the State Supreme Court had assisted clarifying the future of the growth of Wastewater service within the Yakima Urban Growth Area; and 3) the existing rate structure did not adequately assess the wastewater system's economic impact from non-residential domestic or non-domestic customers in relation to the amount or strength of the wastewater they discharge. Due to concern of some of the elements of the 2004-69 ordinance, Council revised some of the WCC policies and rates on May 17, 2005, by ordinance 2005-22. At the same time, in order to maintain the Wastewater Division's revenue, Council raised general wastewater rates to all City retail customers by 2.5%. Staff believes it is timely to again review policies, language, and rates because, since the previous study; 1) the City has enjoyed significant annexation of land; 2) construction costs have experienced significant inflation; 3) some clarification would be helpful on how certain policies are to be applied. The Council adopted mandated 2004 Wastewater Facility Plan reflects the capital and operations and maintenance requirements of the City's wastewater system to serve the area to be served by the City, including anticipated growth, for the next 20 years. The Plan further allocates anticipated capital expenses into categories driven by regulations, renewal/safety, or growth. The growth element was further divided by the growth anticipated within the Yakima Urban Area, as established in 1976, and growth anticipated outside of this boundary but inside the Yakima Urban Reserve. However, it should be noted that neither the development of a connection charge within this report nor any other aspect of this report constitutes a representation that the City will allow connections from any area. Council policies outside the scope of this report govem authorization to connect. Under current City policy, those costs for capital improvements that are driven by regulations and renewal/safety are included in the monthly service charges. Costs caused by growth are allocated to the new customers through the Wastewater Connection Charge. WCC 2007 Update Section 1 Page 1 10/26/07 The Wastewater Connection Charge serves two important functions within the Wastewater revenue stream. 1) The equitable share of existing facilities ("Historic Cost") element of this charge is the method through which the City is partially reimbursed for prior investments made to construct existing wastewater facilities to be used by new customers. 2) The actual (including future) connection costs ("actual cost") element of this charge will be the method through which the City generates the revenue necessary to construct new wastewater facilities required to accommodate the additional waste stream from new customers. Revenues collected from these charges will reduce the amount of monthly service charge transfers required from the Wastewater Operating Fund to the Capital Funds thereby reducing the levels of future Revenue Bonds. In turn, this will reduce future rate increases to retail customers. Conversely connection rates set such that they do not recover the full cost of growth shift some of this burden to the existing ratepayers. Payment of capital financing costs or depreciation expense will still be required from all retail ratepayers to finance facility rehabilitation, and upgrades and new technology required by new regulations. This capital expense, together with Operations and Maintenance expenses, remain an element of monthly service charges. Purpose of this Study: The purpose of this report is to determine appropriate connection charges for each customer class (summarized in Table "A" below) through a two-step analysis: First it will: • Determine the equitable level of historic costs to be assigned to new connectors to the wastewater system. • Using the information provided by the 2004 Wastewater Facility Plan, as adjusted for inflation, determine the necessary charge to be imposed upon new residential connectors to the wastewater system to finance the actual connection cost and future expansions to the facilities required to accommodate their waste stream. Then it will: • Further refine the charge for the City's two classes of non-residential discharge customers, which are (1) non-residential customers that discharge only wastewater of domestic strength and (2) non-residential customers that discharge non-domestic wastewater, by: • Establish a method to equitably determine connection charges to be imposed on new non-residential accounts that discharge only domestic wastewater based upon actual flow generated. WCC 2007 Update Section 1 Page 2 10/26/07 • Establish a method to equitably determine connection charges to be imposed on new non-residential accounts that discharge non-domestic wastewater based upon the actual discharge of hydraulic flow, Biochemical Oxygen Demand (BOD) and Total Suspended Solids (TSS). Table "A": Elements of Connection Charge For Each Customer Class Customer Type Wastewater Type Elements of Connection Charge Residential Domestic Uniform charge: equitable share of historic cost + actual (including future) cost to connect Non-residential Domestic only Charge based on actual flow: equitable share of historic cost + actual (including future) cost to connect Non-domestic Charge based on actual flow and actual strength: equitable share of historic cost + actual (including future) cost to connect Methods to be utilized: • Determine the growth, both in new residential and total wastewater loading, predicted within the City's wastewater service area over the next twenty years. • Determine the share of existing wastewater (treatment, trunkage, and collection) infrastructure that will be utilized by this growth. • Determine the historic cost adjusted by up to ten years' interest of the existing wastewater (treatment, trunkage, and collection) infrastructure. • Determine the equitable level of historic cost adjusted by interest of the existing wastewater treatment facility to be assessed against wastewater constituents; hydraulic, BOD, TSS. Determine the actual cost to the City to make new connections, that is, the estimated cost of future expansions of the wastewater (treatment, trunkage, and collection) infrastructure required to accommodate growth. Develop and propose an adjusted Wastewater Connection Charge (WCC) for identified Zones. The WCC will be structured such that: 1) A uniform charge will apply to all similar development within each zone. 2) Upon payment, new customers will have paid an equitable share of the historic cost of existing facilities, and the actual cost, including future costs, to the system of accommodating growth. Develop a method of adjusting the initial WCC charged to each non-residential customer (both domestic and non-domestic) after a length of time in order to reflect the actual parameters (flow, etc.) of that customer's discharge. WCC 2007 Update Section 1 Page 3 10/26/07 Findings of the Study: State statutes allows the City to implement connection charges that have two elements: 1) an "equitable share" of the "historic" cost of the existing system. 2) the "actual cost" of connecting the new customers, which may include future costs. Staff recommends continuing the following methodologies that are currently in effect: Utilized the methodology established by King County whereby multi -unit housing on a single parcel is converted to "single dwelling units" or SDUs by using the following scale: 2-4 units per parcel = 0.8 SDUs per unit 5 or more units per parcel = 0.64 SDUs per unit. For this recommendation, multi -unit includes trailer park spaces on single parcels. • For non-residential users — both those that discharge only domestic wastewater and those that discharge non-domestic wastewater. The individualized WCC should initially be based on estimated flow and, for non-domestic dischargers, also on estimated strength. This initial WCC may later be adjusted to reflect actual flow and strength • The WCC calculation was refined to consider the actual strength of wastewater for each non-domestic discharger in order to make the rate structure more equitable. • For purposes of non-domestic WCC calculation, unit rates be established for three constituents (hydraulic flow, BOD, TSS). These unit rates would be utilized to calculate WCC for each new non-domestic discharger account. Rates for other constituents may become necessary as additional regulations are adopted. • The initial charge for each new non-domestic account would be calculated based upon standard flows and loadings set forth in the Criteria for Sewage Works Design Table G2-1, or by other information. Then, at the conclusion of a certain length of time, for example 12 months, the account would be "proven -up" based upon actual discharge characteristics. The final charge would be calculated accordingly, and the City would issue an invoice or refund for the difference between the initial and final charge. Accounts would be periodically monitored, and the discharger may have the opportunity to obtain additional discharge authority through payment of an additional WCC if the additional authority were needed and available, but no further refunds would be made. Inflation of construction prices have significantly altered the future costs utilized in earlier rate studies. Staff and most of the development community have become accustom to the present policies and methods. However, some clarification would be useful on some specific issues including established Local Improvement Districts (LIDs). WCC 2007 Update Section 1 Page 4 10/26/07 Recommendations: 1) The existing Wastewater Connection Charge (WCC) should be adjusted for all new accounts to reflect the findings of the 2004 Facility Plan as adiusted for inflation and should include historical cost and future cost components for: A) Treatment Facility B) Trunks/Interceptors C) Collection Piping 2) Due to the recent annexation that greatly expanded the City's area, two sub areas of Zone 1 of should be maintained in addition to the previously established Zones: • Zone 1-A includes all properties within the Yakima City limits east of 40th Avenue; • Zone 1-B includes all properties within the Yakima City limits west of 40th Avenue; • Zone 2 includes all properties outside the Yakima City limits but within the 1976 Urban Area Boundary; • Zone 3 includes all properties outside the Yakima City limits and outside the 1976 Urban Area Boundary but within the Urban Growth Area boundary, as amended. As per current adopted policy, a customer's Zone is determined on the date the customer commences payment of the Connection Fee. 3) As per current adopted policy, an initial WCC should be developed for each new non-residential account discharging only domestic wastewater. This charge may differ for customers within different Zones. In addition to the Trunk and Collection components, the charge should include historical cost and future cost components for hydraulic flow. Such initial charge should be subject to adjustment and final payment after a "prove -up" period. Each discharger would be authorized to discharge only up to the flow reflected by its charge. The customer may obtain additional discharge authority through payment of additional connection fees and complying with any applicable requirements for facility expansion. 4) As per current adopted policy, an initial WCC should be developed for each new account discharging non-domestic wastewater. This charge may differ for customers within different Zones. In addition to the Trunk and Collection components, their charge would include historical cost and future cost components for the Treatment Facility: A) Hydraulic Flow B) Biochemical Oxygen Demand (BOD) C) Total Suspended Solids (TSS) The initial charge would be subject to adjustment and final payment after a "prove -up" period. Each discharger would be authorized to discharge only up to the amount of each constituent reflected in its charge. The customer may seek additional discharge authority through payment of additional connection fees and complying with any applicable requirements for facility expansion. WCC 2007 Update Section 1 Page 5 10/26/07 5) The adjusted WCC should continue to include: A) An equitable share of the historic cost of existing facilities adjusted by interest charges from the date of construction until the date of the new connection, not to exceed the greater of 2 times the original cost or 10 years. B) The actual cost to connect a new customer, that is, the estimated cost of system expansion required to accommodate future demand caused by the new customer. 6) All costs and projects should be evaluated in conjunction with each update to the Wastewater Division's Comprehensive and Facilities Plans. These updates should be at intervals no greater than five years. Adoption of these recommendations will: • Enable new residential customers of the system to pay an equitable share of historic cost and the actual (including future) costs incurred to serve them. • Enable new non-residential customers discharging only domestic wastewater to pay an equitable share of historic expenses and the actual (including future) costs incurred to serve them. An initial charge will be calculated and paid, subject to possible adjustment after a "prove -up" period. • Enable the new non-residential customers discharging non-domestic wastewater to pay an equitable share of historic expenses and the actual (including future) costs incurred to serve them. An initial charge will be calculated and paid, subject to possible adjustment after a "prove -up" period. Such charge shall take into account the customer's effluent loadings. • Establish an appropriate revenue source for existing Wastewater construction funds (Fund 476 and 478). Fund 476 is used for construction of Interceptor/Trunks and limited Collection piping; Fund 478 is used to construct treatment facility expansion required to accommodate growth. WCC 2007 Update Section 1 Page 6 10/26/07 SECTION 2 BACKGROUND and CURRENT PRACTICE History: The original wastewater system for Yakima consisted of open ditches, which discharged untreated effluent directly into the Yakima River. Initial sewer pipeline construction began in 1890 and lasted until approximately 1912. A second flurry of pipeline installation took place between 1922 and 1926. The extent of the first work was in the area from Beech Street to as far north as "I" Street, and from 12th Street to as far west as 16th Avenue. These early projects were financed by bonds and Local Improvement Districts (L.I.D.$). Connection charges were not imposed because each property owner participated through L.I.D. payments. Direct discharge of untreated wastewater into the river and combination financing of collection projects continued until approximately 1936. In 1936, the City constructed a primary treatment plant and several major trunk lines as a W.P.A. project to serve the health, welfare, and safety needs of the community and reduce pollution of the river. In 1956, the water -sewer fund was established as a utility separate from other general city revenue. Monthly sewer rates were initiated by Ordinance B-1890. Sewer rates were calculated as a percentage of the water charge In 1965, Yakima's wastewater treatment was further enhanced by the addition of trickling filter biological treatment. This addition allowed the City to provide secondary treatment to the waste stream. By 1976, the treatment facility no longer had adequate capacity to handle the load generated from existing City of Yakima customers and stay in compliance with newly imposed water quality requirements mandated by the 1972 Clean Water Act. The Town of Union Gap and Terrace Heights Sewer District were also experiencing severe overload conditions and facility deterioration. Additionally, the developed area just west of the City of Yakima was experiencing numerous septic system failures. Further development in this area was also curtailed. The 1976 Wastewater Facility Plan was prepared. It recommended combining the flows from the urban area at a larger single regional facility and construction of several interceptors to allow for sewering of the urbanizing areas surrounding the existing city limits. Following the adoption of this Plan, major capital construction projects were undertaken which accomplished the above recommendations. Expansion, new technology, and rehabilitation to the wastewater treatment facility were funded by a combination of federal and state grants and loans, and local funds acquired from capital reserves and bonds. Typically, grants and loans were not eligible to be used to finance expansions in excess of 110% of existing demand. Therefore, much of the facility's expansion was ineligible for government subsidization and was financed by local cash. Loans, bonds, and cash reserves are funded through City retail customer rates or other charges. In the years 1976 through 1989, over $30.3 million was invested in the Wastewater Treatment Facility. Of this, $6.4 million was local cash funded through City retail customer rates and charges. Since 1990, an additional $50 million has been invested in WCC 2007 Update Section 2 Page 1 10/26/07 the Treatment Facility. Grants amounted to a scarce $6.6 million, leaving $33.4 million local cash funded through City retail customer rates and charges. Of the $39.8 million local cash, over $23 million has been for expansion to accommodate new customers. Similarly, the collection system was greatly expanded during this period. Over $15 million of local cash has been invested by the existing ratepayers for the benefit of new customers. Through Wastewater connection charges, the new customers will have the opportunity to reimburse the existing ratepayer for the investments made for their benefit, this will be a long 20-50 year process. Capital Cost Recovery Charge (CCRC): In an effort to partially reimburse the City, which contributed cash reserves above what grants would provide, and whose retail customers would be paying the annual loan and bond debt payments, the City implemented a Capital Cost Recovery Charge (CCRC), in 1979, by Ordinance 2359. Per former Chapter 7.58 of the Yakima Municipal Code, the Capital Cost Recovery Charge (CCRC) was imposed on new retail sewer connections "where such real property so connected or served is situated in, or partially in, any of the geographical areas depicted as the West Valley Area', 'Fruitvale Area', 'Broadway Area', or 'Fairview - Sumac Area' on the map... dated December 18, 1979." The purpose of this charge was to partially reimburse the owner of the Wastewater System (the City of Yakima) for the investment it had made for the major infrastructure (Treatment Facility and Trunks/Interceptors) being used by the new customer. A CCRC was not assessed to new customers within the City because their allocation of capital expenses was to be included within their (bi)-monthly service rates. Sewer Connection Charges (SCC): Once a collection pipe (<12") was in place, those properties that participated in the cost of the installation were permitted to connect without further payment to the City except for the cost of a plumbing permit, CCRC if applicable, and their cost to have a contractor make the service connection. However, properties that fronted on existing sewer pipelines and whose owners did not participate in the cost to construct the pipe were obligated to pay a sewer connection charge (SCC) before they were allowed to connect. SCCs were originally established in 1956 by Ordinance B-1922. The SCCs and methods of determining charges were substantially modified in 1958 by Ordinance B- 2192. Once established in Chapter 7.56.020 of the Yakima Municipal Code, the SCC was imposed on the owner of any lot, tract, or parcel of property that was to be connected to an existing city sanitary sewer line when the owner of said property had not paid an equitable share of the cost of the line to which the connection was to be made. The purpose of the SCC was to require the new customer to contribute to the investment the City had made for the collection infrastructure being used by the new customer. This contribution helped maintain lower rates for the existing customer, who's past payments for service had funded the City's investment in facilities used by new customers WCC 2007 Update Section 2 Page 2 10/26/07 For many years prior to 1997, chapter 7.56.030.B of the Yakima Municipal Code covered the calculation of this charge when the connection was to an existing line that had been financed by means other than a local improvement district. The calculation required the establishment of an appropriate cost for the year the line was installed, and then added compound annual interest to the date of the new connection. The most common method was based on "the Average L.I.D. cost for the year in which the particular pipeline was installed", or some other representative time as close to that as possible. An unconnected property that had frontage on two sewers installed at different times could likely be charged differently for connections to each pipe. Methods for calculating fees varied from one project to another. They utilized costs per front foot, square foot, flat fee or combinations. This led to unavoidable SCC inconsistencies within similar locations CURRENT PRACTICE: As stated in the Introduction (section 1), in 1997, the then -existing Capital Cost Recovery Charge (CCRC) and Sewer Connection Charge (SCC) were eliminated. Instead, the costs to be recovered were combined into a single Wastewater Connection Charge (WCC). Wastewater Collection System: Three classifications of pipes are generally recognized for use in wastewater collection. These classifications are generally based on the pipe's diameter and purpose: Wastewater: Classification . Diameter Interceptors greater than (>)18" Trunks 12" - 18" Collection pipes less than (<) 12" The collection pipes are installed for collection of wastewater from adjacent properties' service connections (building sewers). Trunks receive the discharge from groups of collection pipes for transmission to Interceptors. Interceptors then transport the wastewater to the treatment facility. For purposes of this report and calculation of WCCs, we use only two classifications, Trunk/Interceptors (12" and larger) and Collection pipes (<12"). Trunk/Interceptors: Historically, the City has utilized and still uses four different methods to finance the construction of Trunk/Interceptors. Wholly City Financed: The first method consists of the project being financed and constructed solely by the City. State and Federal grants or loans are secured when available. Under this method, existing City customers carry the financial obligation of construction costs, but with the expectation of reimbursement through future contributions from new connectors. City Participation with Oversize: Under the second method, the City provides partial funding for the installation of trunk/interceptors when they were installed by private developers. An arrangement can be made under which the City pays the cost of the incremental difference in diameter between what was required to serve the development and the size of trunk pipe necessary to comply with the future needs identified in the comprehensive sewer plan WCC 2007 Update Section 2 Page 3 10/26/07 for the specific area. Typically the financing and construction has been handled by the private developer. Under this method, existing City customers carry only the financial obligation of the incremental cost to "oversize" the sewer pipe. A developer participating in this program could be required to address regulations, time concerns, and expenses inherent to public works projects. Developer Extensions: Under this method, the owner of a new development or plat that is either adjacent to the route of a trunk/interceptor line, or is situated such that a new trunk/interceptor line, as determined by the Wastewater Manager conforms to the Wastewater comprehensive plan, must be extended to serve said development, must design and construct the new portion of the trunk/interceptor system to provide service. The extension of the trunk/interceptor line to and beyond their development may then be considered as payment in lieu of the Future Trunkage Element of the WCC for that development. The contribution of easement by parcels outside the development may also be considered as (partial) payment in lieu of the Future Trunkage Element of the WCC for those parcels. Reimbursable Agreements: The fourth method is a Reimbursable Agreement. This is a contract between a private developer and the City. Under such a contract, the developer wholly finances the initial construction. The City agrees to transfer to the developer a pre -determined pro -rata amount when certain subsequent connections are made to the pipe installed by the developer. This program has primarily been used for collection class pipes (<12"). However, it may also be used for trunk/interceptor extensions (12"+). The agreement may be set for a maximum term of 15 years per State law. The agreement also sets out the terms and charges that the benefited properties (new connectors) must satisfy before they connect. The City is responsible for collecting the charge from new customers who benefit, and passing it to the party named in the Reimbursable Agreement. Currently, several such agreements are in effect throughout the service area. After the set period, the City retains all connection fees paid by subsequent connectors. To avoid difficulties and misunderstandings with developers, per the 2004 report, the City adopt a policy limiting Wastewater Reimbursable Agreements to projects that, as determined by the Wastewater Manager, build infrastructure that conforms to the Wastewater Comprehensive Plan. This policy also stipulates that only the cost of infrastructure that is in excess of that required for the development be eligible for consideration under a Reimbursable Agreement. Limiting potential reimbursement to the cost of excess capacity is reasonable because the developer remains responsible for costs that must be incurred in order for the development to obtain sewer service, but the developer has the potential to be reimbursed for installing capacity that is greater that what was required for that particular development. The adopted policy also states that terms and conditions for all future Reimbursable Agreements shall be established prior to the construction of a project. Collection Pipes: The City does not typically install or fund the design and installation of sanitary sewer collection pipes (<12"), but relies on the developers or users to pay these costs. The most common methods of funding the installation of collection pipes are: a) in conjunction with a new subdivision or other new development extension; b) by private WCC 2007 Update Section 2 Page 4 10/26/07 funding due to the need for sewer service for an existing building or other development; or c) by Local Improvement District (L.I.D.). Developer Extensions: The owner of each new development or plat that is required or desires to connect to sewer must design and construct the new portion of the collection system to provide service within and adjacent to the development ("to and through"). The extension(s) of the sewer such that service may be extended to all adjacent properties may then be considered as payment in lieu of the Future Collection Element of the WCC. If circumstances allow that no additional service is required to adjacent properties, extension may not be required to enjoy a partial waiver of the Future Collection Element of the WCC. Adjacent properties to the development that actively participate (i.e. donate easement) in the construction of the sewer infrastructure may also enjoy a partial waiver of the Future Collection Element of the WCC. Reimbursable Agreements: As described above, a Reimbursable Agreement is a contract between a private landowner or developer and the City Under this contract, the developer finances the project. The City agrees to transfer to the developer a pre -determined pro -rata value from subsequent connectors to a pipe installed by the developer. After the contractual time period, the City retains all fees paid by subsequent connectors. To avoid difficulties and misunderstandings with developers, per the 2004 report, the City adopt a policy limiting Wastewater Reimbursable Agreements to projects that, as determined by the Wastewater Manager, build infrastructure that conforms to the Wastewater Comprehensive Plan. This policy also stipulates that only the cost of infrastructure that is in excess of that required for the development be eligible for consideration under a Reimbursable Agreement. Limiting potential reimbursement to the cost of excess capacity is reasonable because the developer remains responsible for costs that must be incurred in order for the development to obtain sewer service, but the developer has the potential to be reimbursed for installing capacity that is greater that what was required for that particular development. The adopted policy also states that terms and conditions for all future Reimbursable Agreements shall be established prior to the construction of a project. Local Improvement District (L.I.D.): The L.I.D. process begins with one or more property owners as proponents, requesting sewer service to an area not currently served. The proponents, with the assistance of City staff, develop an L.I.D. The project is designed and constructed as a City project. Costs of the final assessment to the property owners include only those incurred after official formation of the district. Payment of an L.I.D. assessment would be in lieu of the actual (future) cost element of the WCC. The Historic Collection, Treatment, and Trunkage elements of the WCC may be paid together with the L.I D assessment or paid separately. When L.I.D. assessments are calculated, the City has historically contributed the cost of the incremental difference in diameter between a normally required collection pipe and the size of trunk pipe necessary to comply with future needs identified in the comprehensive sewer plan for the specific area (refer to City's participation in oversize above). Existing City policy established that the Wastewater Connection Charge for any facility located on a lot that has participated in a local improvement district for wastewater WCC 2007 Update Section 2 Page 5 10/26/07 facilities and has fully executed an Outside Utility Agreement, if applicable, shall not exceed that charge which was in effect at the time the final assessment roll was passed. Provided the Wastewater Connection Charge is fully paid within one year of time the final assessment roll was passed. (This would apply only to parcels outside the City) Existing City policy established that the Future Collection element of the Wastewater Connection Charge for any facility located on a lot within the boundaries of a local improvement district for wastewater facilities that does not participate in said local improvement district be the greater of the WCC established by the applicable YMC or the Final Assessment of the LID plus interest. LID Waiver: The 2005 ordinance established that residential participants of new LIDs, to serve existing residential units within the City, enjoy an "LID waiver". This created a disparity with participants of pre-existing LIDs and industrial/commercial accounts. Staff respectively recommends that, with the adoption of this report, the policy be refined whereby all participants of LIDs and the City Bond Area are treated equally. This report suggests that: 1) An "LID waiver" is defined as a waiver of the first (pre-existing) residential connection (SDU or equivalent flow) per parcel in an LID. Other new connectors (multiple -residential or industrial/commercial) pay treatment, trunkage, and collection for authorized discharges greater than an SDU. However, the entire actual trunkage and actual collection (lot size) element would be waived. 2) In order to preserve their right to an LID waiver, all participants of LIDs (existing or new), must, within one year from the final assessment roll of their LID, or one year from notification from the City of this LID waiver policy (whichever is later), commence either an active or "placeholder" wastewater account. A "placeholder' account would be available for those not wishing to actually connect at that time. Customers with a "placeholder" account shall be billed at a flat rate ($10.00) per month. Failure to make timely payments on a placeholder account shall void the right to an LID waiver for that parcel. An exception shall be made for the LIDs that had their final assessment formalized between June 19, 2005 and the effective date of the Ordinance accompanying this report. 3) Any participants of an LIDs (existing or new) that fails to commence either an active or "placeholder" wastewater account within the above time requirement shall, when paying their connection charge, enjoy only a waiver of the parcel size and one SDU equivalent flow toward their actual collection element. 4) Any parcel subdivided after participation in an LID enjoys only a waiver of the parcel size and one SDU equivalent flow toward their actual collection element. (one waiver of SDU equivalent flow per each original LID parcel) 5) The LID waiver shall not be extended to properties that did not have sanitary sewer service (private) prior to construction of the LID. WCC 2007 Update Section 2 Page 6 10/26/07 Subdivision and Relocation This report suggests that: 1) If a previously connected parcel is subdivided and the connected structure(s) is demolished, the "grandfather" rights may be relocated to one of the new parcels created. The parcel containing the original structure would not retain any rights and would be required to pay normal charges when reconnecting. 2) If a Public Facility (partially or entirely) is relocated to a different parcel, that Public Facility may transfer all or a portion of their "grandfather" rights to the new parcel. The parcel containing the original structure would lose any transferred rights. "Prove -Up" Beginning with the 2004 report, for both non-residential domestic and non-domestic dischargers, the anticipated effluent flow, and any other characteristics upon which the initial WCC is based, is estimated based upon available water meter or sewage flow meter data or from information provided by the potential discharger. The City could also establish such estimates by reference to Table G2-1 of the "Criteria for Sewage Works Design," published by the Washington State Department of Ecology. These estimates would be used to calculate an initial WCC and to establish the customer's maximum discharge. After the end of the first year of a business's full operation, the City may calculate the final WCC based on actual discharge, and may invoice or refund any difference between the initial and final WCC. Thereafter, the customer would be authorized to discharge in the amounts reflected by the final WCC. Recalculation of Charges YMC 7.58.090(A) presently provides in part, "in the event any facility, lot, tract or parcel is improved, or the use thereof is changed or intensified so as to increase the number or size of water meter(s), then the amount of the connection charge is subject to recalculation and increase" The 2004 report established that recalculation of the WCC also be triggered (a) for non-residential domestic accounts by an increase in flow; and (b) for non-domestic accounts by an increase in flow, BOD, or TSS discharged. These increases could trigger recalculation of the WCC even without a meter change. Each such account would be "grand -fathered" at, and receive a wastewater discharge authorization for, the highest actual recorded flow (in average gallons per day per two consecutive billing periods) and BOD, and TSS levels (in average pounds per day per two consecutive billing periods) over a two-year period of operation prior to January 2005. If no strength data were available, the 90th percentile of the measured strength from businesses with the same 6 -digit SIC code and the business's measured flow may be used to establish an upper limit of authorized discharge for each such account. Once the authorized discharge was established, any customer whose discharge exceeded limits thus set would either be required to pay for authorization to use additional treatment capacity, if available, in accordance with Sections 7.58.040 - 050, or be subject to penalties as set forth by 7.65 YMC. WCC 2007 Update Section 2 Page 7 10/26/07 SECTION 3 PROPOSED WASTEWATER CONNECTION CHARGE Introduction: Current State statutes authorize the City to include two elements in charges for new connections to the wastewater system. 1) An "equitable share" of the "historic" cost of the existing system. RCW 35.92.025 authorizes a charge designed to make connecting property owners: bear their equitable share of the cost of [the sewerage] system. The equitable share may include interest charges from the date of construction of the ... system until the connection, or for a period not to exceed ten years, at a rate commensurate with the rate of interest applicable to the city[.] 2) The "actual cost" of connecting the new customers. All actual costs of connection, including the cost of adding treatment and transmission capacity to serve growth, may be included in this charge. Under RCW 35.67.020, 35.67.190, and 35.92.020, a city has full jurisdiction to fix sewer rates and charges, although rates must be uniform for each class of service; in classifying, the city may consider, among other factors, differences in capital contributions made to the system and location (within or outside the City limits). This report recommends that for the purpose of establishing new Wastewater Connection Charges, the Yakima Sewer Service Area be divided into four zones. The remainder of this report utilizes this recommendation. The first zone (Zone 1A) is the area within the Yakima City Limits Tying east of 40th Avenue. The second zone (Zone 1 B) is the area within the Yakima City Limits lying west of 40"' Avenue. This boundary would change with any annexation. The third zone (Zone 2) is the area between the City limits and the 1976 Urban Area (U.A.) boundary. The fourth zone (Zone 3) is the area between the 1976 U.A. boundary and the Urban Area Boundary as it may change from time to time. Note: Although this report assumes existing and future flows and revenues from the City of Union Gap and the Terrace Heights SewerDistrict, its recommendations do not affect charges in their service areas. Staff researched the historic cost of the Wastewater System's existing facilities (treatment, trunkage, and collection) allocated to serve each of these four zones. Based upon the findings of the 2004 Wastewater Facility Plan, staff also projected the level of capital investment necessary during the next twenty (20) years to adequately service increased population and related industry within each zone. This report develops a comprehensive system analysis for each area (zone) and develops charges based on the historic and actual/future costs to provide service. The portion of the Connection Charge derived from historic and actual/future treatment facility expansion expenses (Treatment element) was determined on the quantity and strength of flow anticipated to be generated by the new connection. This is equitable, as . the characteristics correlate directly to the impact on the treatment facility. WCC 2007 Update Section 3 Page 1 10/26/07 For this report, the trunkage and collection portion of the Wastewater Connection Charge remains a function of the size of the parcel connecting to the system. Existing and Projected Flows: TABLE 1 indicates the projected residential growth and wastewater flow from each of the contributing Zones for current and future conditions. Terrace Heights and Union Gap combined presently have been allocated (and are paying for) 12.1% of the capacity of the Treatment Facility. Table 1 indicates that, based upon reports submitted by these customers, by maintaining their existing percentage allocation (12.1 %) as the Facility expands, they should be able to accommodate their growth, over the next 20 years, without obtaining a higher allocation percentage. This report assumes that their percentage allocation remains at the existing 12.1% level. 1) Equitable Share of Historic Cost of Existing Facilities Historic Treatment Facility Costs: On TABLE 2, the historic construction costs of the treatment facility are shown in column "A". This cost is then allocated to the customers within Zone 1A, Zone 1B, Zone 2, Terrace Heights, and Union Gap (column "B") and Zone 3 (column "C") based upon the percentage of flow each is projected to generate at the end of the planning period; Column "B" at 92.39% and Column "C" at 7.61 %. All Federal and State Grants and private contributions that provided funding for the historic construction are listed in column "D", and are then deducted from column "B" to establish the 'local cash" contributed by Zone 1A, Zone 1 B, Zone 2, Terrace Heights, and Union Gap. This amount is shown in column "E". None of the Federal and State Grants or private contributions were credited toward the "local cash" portion of the facility allocated to Zone 3 customers. The 'local cash" that has been paid by Zone 1 and Zone 2 retail customers on behalf of future Zone 3 customers is shown in column "F. Each 'local cash" historic cost was adjusted at an appropriate interest rate from the date of construction to 2008. The interest rate used was the average rate paid by the City on revenue bonds issued for Wastewater Division projects during the designated time periods. Per statute, an upper limit of ten years or 2.0 times the original cost was used for this adjustment. Each capital project was reviewed as to what percentage was for facility expansion as opposed to rehabilitation or implementing new mandates. The expansion percentage is shown in column "J". TABLE 2 then shows the expansion allocation of the adjusted historic 'local cash" cost for the customers within Zone 1A, 1B, and Zone 2 (column "K") and for the Zone 3 customers (column "L"). WCC 2007 Update Section 3 Page 2 10/26/07 TABLE 3 establishes the current equity position that the City has in the Treatment and Trunkage elements of the System. This information is utilized on TABLES 2 and 12 of this report to determine the share of Historic Costs for new connections. TABLE 2 utilizes the information from Table 3 to arrive at the City's Equity Portion of expansion related Historic Costs for Zone 1A, 1 B, and Zone 2 (column "K") and for the Zone 3 customers (column "L"). These costs are divided by the applicably capacity allocated to each Zone. This calculation provides a unit cost per gallon of domestic strength wastewater. A portion of the Zone 1A, 1 B, Zone 2, and Zone 3 retail customers' monthly sewer service rate is allocated toward repayment of outstanding debt. Therefore, a new connector will pay a portion of the cost of the existing system through monthly sewer service bills. TABLE 4 utilizes the unit cost per gallon per day of domestic strength wastewater established on Table 2 to establish the Historic cost component of the treatment element of the WCC for Single Dwelling Units (SDUs). Average flows for a Single Dwelling Unit (SDU) were generated from billing records. WCCs for non-residential domestic discharger accounts should initially be calculated on an estimated basis utilizing these unit costs and flows established from Table G2-1. Design Basis for New Sewage Works from the Criteria for Sewage Works Design dated 1998 and/or the information provided by their Initial Industrial Waste Survey plus a pro - rata share of Infiltration/Inflow (1/1). A final calculation of the WCC will be made following a review of one year's sewer usage at full occupancy. A non-domestic discharger is defined by YMC 7.65 as a discharger that has discharge other than domestic wastewater. Domestic wastewater is defined as "water ... carrying human waste, kitchen, bath and laundry waste, and housekeeping materials in volumes and/or concentrations normally associated with residential discharge ..." TABLE 5 Calculates the Historic Unit Cost for flow, BOD, and TSS by using the Historic Cost developed on Table 2, and the treatment facility's existing capacity as established in the 2004 Wastewater Facility Plan: 1) Hydraulic Flow 21.5 mill gals/av day -max mn 2) Biochemical Oxygen Demand (BOD)53,400 lbs/av day -max mn 3) Total Suspended Solids (TSS) 38,600 lbs/av day -max mn, 21 Actual (including Future) Treatment Facility Requirements: TABLE 6 identifies the cost of Treatment Facility construction shown in the 2004 Wastewater Facility Plan necessary to meet new mandated regulatory permit (NPDES) requirements, maintain/rehabilitate the existing facility, and accommodate projected increase in loading over the next twenty (20) years. Growth related costs were further identified to those related to Zone 1A, 1 B, Zone 2 customers and to Zone 3 customers. WCC 2007 Update Section 3 Page 3 10/26/07 The cost of capital projects required by new mandates and rehabilitation of the existing facility will continue to be recovered through monthly service rates charged to existing customers. TABLE 6 further establishes the allocation of growth -related and other actual costs for the customers within Zone 1A, 1B, and Zone 2 and for the Zone 3 customers of 1.0 gallon per day of "domestic" strength wastewater. Note that future treatment costs are the same for all zones of the service area. TABLE 7 uses the total increase in the average day -maximum month treatment facility flow depicted on Table 1-5 of the 2004 Wastewater Facility Plan, to determine the facilities needed to adequately accommodate the 20 year projected growth within the service area. TABLE 8 utilizes the unit cost per gallon per day of domestic strength wastewater established on Table 6 to establish the Actual cost component of the treatment element for SDUs. WCCs for non-residential domestic discharger accounts shall initially be estimated for each customer utilizing these unit costs and flows established from Table G2-1. Design Basis for New Sewage Works from the Criteria for Sewage Works Design dated 1998 and/or the information provided by the customer's Initial Industrial Waste Survey plus a pro -rata share of Infiltration/Inflow (1/1). A final calculation, and any related adjustment to the estimated WCC, will be made following a review of one year's sewer usage at full occupancy. TABLE 9 uses the total increase in the pounds per average day -maximum month treatment facility loading of BOD and TSS depicted on Table 1-5 of the 2004 Wastewater Facility Plan, to determine the facilities needed to adequately accommodate the 20 year projected growth within the expanded service area. TABLE 10 calculates the Actual (including Future) Unit Cost per unit of Flow, BOD or Total Suspended Solids by using the Future cost developed on Table 6, the treatment facility's future required capacity found on tables 7 and 9. These unit rates are utilized to calculate equitable WCCs for non-domestic dischargers. TABLE 11 contains a summary of proposed unit rates to be charged for the Treatment Element of the connection charge. Staff determined the following elements of the Wastewater Connection Charge using the methods established with the 2004 Update. That being, to assess one-half the cost to parcel size and one-half to discharge flow. WCC 2007 Update Section 3 Page 4 10/26/07 Historic Trunks/Interceptors Cost: Unlike the treatment facility, the Trunks/Interceptors often serve specific Zones. On TABLES 12-F and 12-P staff determined the Historic Cost, as adjusted by interest and equity position, of the existing system Trunks/Interceptors and allocated each to the Zones they serve. Table 12-P: costs are spread across the total square footage of parcels projected to be connected by the end of the planning period (20 years). A separate unit cost per square foot was established for each Zone. Note: The Total Acres were taken from the City's GIS data, Future parcel acres were calculated to accommodate permanently non- sewered acreage (streets, parks, parking Tots, etc.). Table 12-F: costs are spread across the total flow anticipated by 2024. The flow figure reflects the total increase anticipated and does not reflect the anticipated decrease in Infiltration/Inflow. The anticipated flow for Terrace Heights, Union Gap, and the Yakima Urban Reserve (Zone 3) are taken from Table 1, the flow for Zone 1A, 1B, and Zone 2 are pro -rata by the total acres of these Zones PROPOSAL: Table 12-P and 12-F each assess one-half the cost by their respective methods. Both are utilized to calculate the connection charge. Future Trunks and Interceptors: TABLES 13-P and 13-F list costs for this necessary construction and allocates that cost to the Zone that will utilize the increased capacity to accommodate future development. This allocation was based upon the projected connected parcel acres within each Zone at the end of the 20 -year planning period. Note that the cost was reduced by the ratio of estimated Annual Average Flow (AAF) in 2024 (15.5mgd) to the AAF for buildout conditions (18.5mgd) as indicated on Table 1-5 of the 2004 Wastewater Facility Plan. TABLE 13-P allocates the cost for each Zone across the area of the new parcels projected to be connected within each Zone. This results in a unit price per square foot to be assessed against new connectors for future Trunk construction. TABLE 13-F allocates the cost for each Zone based upon the projected increase in flow at the end of the 20 -year planning period. This increase is determined and allocated on TABLE 7. PROPOSAL: Table 13-P and 13-F each assess one-half the cost by their respective methods. Both are utilized to calculate the connection charge. Historic Collection System Cost: The collection system consists of the 6", 8", and 10" pipes. On TABLES 14-P and 14-F staff determined the Historic Cost, as adjusted by interest, of the existing collection system and allocated each to the Zones they serve. TABLE 14-P: costs are spread across the total square footage of parcels projected to be connected by the end of the planning period (20 years). This includes existing and future connected area. A separate unit cost per square foot was established for each Zone. WCC 2007 Update Section 3 Page 5 10/26/07 TABLE 14-F costs are spread across the total flow projected by the end of the planning period (20 years). This includes existing and future flow. A separate unit cost per gallon per day was established for each Zone. PROPOSAL: Table 14-P and 14-F each assess one-half the cost by their respective methods. Both are utilized to calculate the connection charge. Future Collection Systems: As previously mentioned, the City does not typically install or fund the design and installation of collection pipes (6", 8", 10"). The most common methods of funding the installation of collection pipes are: a) in conjunction with a new subdivision or other new development extension; b) by private funding due to the need for sewer service for an existing building or other development; or c) by Local Improvement District (L.I.D.). Through the use of any of these methods, the new connectors will directly pay for their collection system. This is the single most expensive element of the entire wastewater system. However, as stated before, the City anticipates only limited participation in this expense. TABLE 15 demonstrates the calculation utilized to establish a unit price per square foot to be assessed against new connectors of all four Zones that connect to existing collection pipes. TABLE 15 also demonstrates the calculation utilized to establish a unit price per gallon to be assessed against new connectors of all four Zones that connect to existing collection pipes. The average parcel size was determined from payment records. The "Future Collection" element of the charge may be waived if: 1) the parcel is within a "developer" built collection system area, 2) the parcel owner extends a collection pipe from the existing system through or along the entire length of the parcel such that adjoining parcel may be served, or 3) the parcel is within a LID in which the parcel participated. Customers are subject to this element of the Connection Charge regardless of the classification of the sewer pipe to which they actually connect (see section 2 at page 4). The existing collection system was financed by developments, L.I.D.s or City cash. Therefore, subject to L.I.D. agreements, all of the existing connected properties have paid 100% of the capital costs of their collection piping systems. TABLE 16 consolidates and summarizes the Existing and Future charges for each element (Treatment, Trunkage, and Collection) of the proposed connection charge for a Single Dwelling Unit (SDU) within each Zone. Costs shown for Trunkage and Collection are based 50% on parcel size and 50% on flow. Costs are shown with the future collection element included and with it waived for an 8,000, and a 12,000 square foot parcel. TABLE 17 summarizes and compares the existing and proposed total Wastewater Connection Charge for each of the four zones with the future collection element waived and with it included. WCC 2007 Update Section 3 Page 6 10/26/07 Other Charges; In addition to the base Wastewater Connection Charges set forth above, all charges shall be subject to: 1) City Services Charges are set each year during the budget process. They currently approximate 6% of the division's revenue. 2) Utility Tax is set by Section 7.64.010-C. 1. of the City Municipal Code. The rate is currently set at 14% on the gross revenue of the wastewater system. 3) Administrative Charges are set at $50.00 per parcel. This reimburses the City for the time spent administrating the Wastewater Connection Charge program. Any required inspection, permit, or plan review fees are in addition to this amount. The cost of capital projects required by new mandates and for rehabilitation to existing facilities will continue to be included in monthly service rates charged to all customers and will not be included in the WCC. WCC 2007 Update Section 3 Page 7 10/26/07 TABLE 1 Distribution of Population and Acreage Population Urban Service Area West Valley Total City Page III -5 Yakima Urban Area Comprehensive Plan Intermediate Projection 85,392 7,219 92,611 Current Population of City 83,646 Z2 + Z3 Population 8,965 POPULATION (2010) 52,241 31,405 951 8,014 92,611 56.41% 33.91% 1.03% 8.65% FLOW (2010) Zone 1 A Zone 1B Zone 2 Zone 3 TH/UG 49.58% 29.81% 0.90% 7.61% 12.10% INCREASE 2,971 7,617 935 7,877 19,400 POPULATION (2024) 15.31% 39.26% 4.82% 40.60% INCREASE Zone 1 A Zone 1B Zone 2 Zone 3 TH/UG FLOW (2024) 13.46% 34.51% 4.24% 35.69% 12.10% POPULATION (2024) 55,212 39,022 1,886 15,891 FLOW distribution (2024) 43.3% 30.6% 1.5% 12.5% ACREAGE UGA Zone 1 A Zone 1B Zone 2 Zone 3 total Area (acres) 10,908 6,557 805 6,781 25,050 % area 43.5% 26.2% 3.2% 27.1% (Zone 2 + Zone 3) Acres 7,586 % Zone 2 ; Zone 3 Acres 10.6% 89.4% TABLE 2 EXISTING TREATMENT FACILITY HISTORIC COSTS adjusted for interest 10/26/07 A B C D E F G H I J K L Year Historical Zone 1, 2 Zone 3 Less Grants, Local Cash Local Cash Interest Adjusted Value Adjusted Value Expansion 'Expansion $ Expansion 5 Description Cost Existing TH & UG Private Contribs Zone 1, 2 Zone 3 to Local Cash Local Cash % Zone 1 A, 1 B, 2 Zone 3 Plant Share of (HC) @ Share of (HC) @ Zone 1, 2 TH & UG 2008 Zone 1,2, TH&UG Zone 3 TH & UG (HC) 92.39% 7.61% TH & UG (-13-0) (- C) max 10 yrs (- E"G) (- F"G) (- H"J) (- I'J) or 2.0 Sanitary Sewer Treatment Facility 3.4096 Structure & Improve (1945-1975) $1,437,101 51,327,738 $109,363 $584,160 5743,578 $109,363 1.40 $1,041,009 $153,109 80.0096 5832,807 5122,487 . 7.6096 Structure & improve (1976-1989) 530,339,588 528,030,745 52,308,843 $23,923,897 $4,106,848 $2,308,843 2.00 58,213,697 $4,617,685 60.1696 $4,941,360 52,777,999 6.1496 Tools, Shop & Garage Equipment 1990 33,353 53,098 $255 30 $3,098 5255 1.81 55,608 $462 35.0096 51,963 $162 Laboratory Equipment 1990 519,542 518,054 31487' 50 . 518,054 $1,487 1.81 532,679 $2,692 35.00% 511,437 5942 Storage Building 1991 57,410 56,846 5564 30 56,846 $564 1.81 $12,391 51,021 35.0096 $4,337 $357 industrial Coating/Secondary Digester 1991 598,274 $90,795 $7,479 30 590,795 $7,479 1.81 $164,339 $13,536 35.0096 $57,519 $4,738 Structure & improve (Humphrey -1993) 1993 $13,159,845 512,158,381 $1,001,464 $5,615,077 $6,543,304 $1,001,464 1.81 $11,843,380 51,812,650 35.0096 $4,145,183 $634,428 Biosolids Storage Area (1556) 1994 5812,925 5751,061 561,864 $0 5751,061 $61,864 1.81 $1,359,421 $111,973 80.00% 51,087,537 589,578 Biosolids Lagoon Clean/Haul (1612)(1702) 1994 $1,302,089 51,203,000 599,089 $0 $1,203,000 $99 089 1.81 $2,177,430 $179,351 0.0096 $0 30 Landscaping (1636) 1994 $99,664 592,080 $7,584 30 $92,080 57,584 1.81 $166,664 513,728 30.0096 $49,999 54,118 Facility/Comp Plan Update (1640/1644) 1994 5489,092 5451,872 537,220 50 $451,872 $37,220 1.81 3817,888 567,368 100.00% 5817,888 $67,368 SCADAUpgrade (1637) 1995 5330,326 5305,188 $25,138 $0 3305,188 525,138 1.81 $552,391 $45,499 80.0096 $441,913 536,400 Mechanical improvements (1713) 1996 $538,878 $497,869 $41,009 50 5497,869 $41,009 1.81 5901,144 $74,226 90.00% $811,029 $66,803 Equipment Prepurchase (1566) 1997 5218,932 3202,271 516,661 50 $202,271 516,661 1.81 5366,111 $30,156 60.00% 5219,667 318,094 Headworks/Olgester Improv (1638) 1998 57,488,236 56,918,381 $569,855 30 $6,918,381 3569,855 1.81 $12,522,270 $1,031,437 40.0096 55,008,908 $412,575 SCADA Y2K Upgrade 1999 5330,326 5305,188 525,138 30 $305,188 525,138 1.71 5521,770 $42,977 30.0096 5156,531 $12,893 Facility Plan Update 2000 5450,000 5415,755 534,245 50 $415,755 $34,245 1.61 3669,684 $55,161 60.0096 $401,811 333,096 Facility Plan Update 2004 5603,701 $557,759 345,942 50 $557,759 545,942 1.27 5707,886 558,307 30.00% 3212,366 $17,492 5.096 Trickling Filter Conversion (1942) 2001 31,408,110 51,300,953 5107,157 $495,500 $805,453 $107,157 1.41 $1,133,353 $150,781 90.0096 $1,020,018 $135,703 Murphy litigation 2002 35,900,000 55,451,010 5448,990 5457,034 34,993 976 $448,990 1.34 $6,692,405 5601,690 0.0096 50 $0 Murphy Settlement 2004 $7,462,135 56,894,267 $567,868 $0 $6,894,267 $567,868 1.22 $8,380,024 $690,248 0.0096 . 30 50 Phase 1 Improvements (2055) 2008 $14,495,191 313,392,107 51,103,084 $60,000 513,332,107 51,103,084 1.00 513,332,107 $1,103,084 30.0096 $3,999,632 $330,925 City of Yakima (2055) 2006 5474,842 $438,707 536,135 50 5438,707 336,135 1.10 $483,674 539,839 50.0096 3241,837 $19,920 UV disinfection (2182) 2008 $2,899,112 52,678,489 $220,622 50 $2,678,489 8220,622 1.00 $2,678,489 $220,622 30.0096 3803,547 366,187 subtotal 1991-2008 358,591,983 354,133,133 54,458,850 $6,627,611 $47,505,522 34458,850 365,521,109 56,346,808 29.8496 519,493,121 31,951,778 Total Existing Treatment Facility 590,368,672 583,49 X616 $6,877,056 $31,135,668 552,355,948 $6,877,056 $74,775,815 $11,117,602 35.0796 $25,267,288 $4,852,265 City Equit Portion (table 3) 75.8996 $19,175,345 $3,682,384 Adjusted Historic Cost of Facility per 1.0 gallon per day of domestic strength wastewater Expansion Portion Adjusted Historic Cost 96 Allocation Allocated Capacity per 1.0 gallon per day (see Table ) Existing Facility of "domestic" Strength Wastewater ZONE 1A, 18, 2, TH, UG 92.3996 19,863,850 gallons per day 30.974 ZONE 3 7.6196 1,636,150 gallons per day $2.259 21,500,000 Existing capacity of favi ity (gallons), average maximum month day, 10/26/07 TABLE 3 CITY EQUITY in WASTEWATER TREATMENT FACILITY and TRUNKS/INTERCEPTORS Historic Historic Cost Existing Cost Existing as of December 2007 Plant Trunks/Interceptors Wastewater Treatment Facility (table 2) $90,391,275 Wastewater Trunks/Interceptors (table 12) $21,568,668 TOTAL System $90,391,275 $21,568,668 Outstanding Debt Principal $21,794,107 $4,143,429 City Equity $68,597,168 $17,425,239 Equity Portion of Historic Cost 75.89% 80.79% TABLE 4 Equitable Share of EXISTING TREATMENT FACILITY HISTORIC COST per New Single Dwelling Unit (SDU) 2006 billed total 68.0% 49.2% 1,935 mg Billed Flow Residential Customers (Yakima service area only) 32.0% 23.1% 909 mg Billed Flow Commercial/Industrial (Yakima service area only) 17.2% 677 mg I/1 (Yakima service area only) 10.5% 414 mg TH&UG ( Their I/I is included in their metered flow) 3,935 Total Facility Flow million gallons (mg) Calculate average monthly flow per existing SDU = billed flow + pro rata share of 1/1 = 1,935 + .680 x 677 = 2,396 /24,700 SDU = 10.8 UOC*/month/SDI. 265 av galls/D/SDU *UOC (Unit of Consumption) = 100 cubic feet or 748 gallons. PER SINGLE DWELLING UNIT (SDU) Z1 A, 1 B, 2 Z3 Adjusted Adjusted See unit costs on TABLE 2 Historic Cost Historic Cost Capital Cost per new Dwelling Unit for Existing Facil ty Z1 A, 1B, 2 265 X $0.974 = $258.11 Z3 265 X $2.259 = $598.64 Equitable Share Treatment Facility $258.1 1 $598.64 Z1 A, 1B, 2 Z3 Equitable Equitable Average Share of Share of Account Gallons Adjusted Adjusted per Day Historic Cost Historic Cost SDU 265 $258.11 $598.64 Multifamily Housing (single building) units 2-4 .8 SDU/unit per unit $206.49 $478.91 units 5 + .64 SDU / unit per unit $165.19 $383.13 10/25/07 Table 5 Industrial Dischargers Historic Unit Cost Element of Connection Charge Description Projected Cost Component Factor (%) Cost Component $ Expense Flow BOD TSS FOG Flow BOD TSS FOG (table 2) 20.00% 43.00% 35.00% 2.00% ZONE 1A, 1B, 2 Historic treatment 19,342,136 3,868,427 8,317,1 18 6,769,748 386,843 ZONE 3 Historic treatment 3,696,122 739,224 1,589,332 1,293,643 73,922 2008 Z1, Z2+ Z1, Z2+ Existing TH/UG ZONE 3 TH/UG ZONE 3 Historic Plant Capacity Capacity Unit Cost Unit Cost Capacity 92.39% 7.61% Hydraulic Flow Flow (g/av day -max mn) 21,500,000 19,863,850 1,636,150 $0.195 $0.452 (gal/av day -max mn) Biochemical Oxygen Demand BOD (Ib/av day -max mn) 53,400 49,336 4,064 $168.58 $391.10 (Ib/av day -max mn) Total Suspended Solids TSS (Ib/av day -max mn) 38,600 35,663 2,937 $189.83 $440.40 (Ib/av day -max mn) 1 10/2r TABLE 6 Estimated Wastewater Capital Improvement Projects Allocation of Future Costs 10/25/07 2024 Z 1 A, 18, 2 I Zone 3 original Capacity Capacity Capacity I MANDATORY TH/UG 7.61% Project FACILITY DESCRIPTION Estimated Est. yr in Sufficient Sufficient % Used Cost Utilized Regulations Renewal/ 92.39% Other Number Total Cost service Until for (yrs) by 2024 by 2024 Safety Growth Growth 1.15 1 Retrofit Primary Split box $428,000 $492,200 2010 2050 40 35% $172,270 $172,270 2 Primary ClarifierMechs 82,275,000 $2,616,250 2011 2041 30 43% $1,133,708 $1,133,708 3 Trickling Filter Walkways $85000 $97,750 2 2008 2038 30 53% $52,133 $52,133 4 A- Basin Diffuser Rehab 850,000 857,500 1 2006 2021 15 100% $57,500 857,500 5 Aeration Basin Repair $750,000 8862,500 2011 2031 20 65% $560,625 $560,625 6 Additional Aeration Basin/Anoxic Zone $2,173,000 82,498,950 2011 2023 12 100% $2,498,950 - $2,308,780 $190,170 8 Secondary Clarifier Bull Gears 8130,000 8149,500 2011 2041 30 43% $64,783 $64,783 9 Secondary Clarifier Skimmer/Scum $362,000 $416,300 2011 2041 30 43% $180,397 $180,397 10 Secondary Clarifier Launders $195,000 $224,250 2 2011 2041 30 43% $97,175 $97,175 11 Secondary Clarifier Spray nozzles $15,000 $17,250 2 2011 2031 20 65% $11,213 $11,213 12 3rd. Secondary Clarifier $3,370,000 $3,875,500 2011 2031 20 65% $2,519,075 $2,327,373 $191,702 13 Chlorination Enhancements $343,000 $394,450 2011 2031 20 65% $256,393 $256,393 14 Grit Hopper Storage $118,000 $135,700 2011 2021 10 100% $135,700 $135,700 15 Primary Sludge Pump flow meter $240,000 $276,000 2018 2033 15 40% $110,400 $110,400 16 Primary Digester Building lights $49,000 $56,350 2010 2030 20 70% 839,445 $39,445 17 Primary Sludge Pump replacement $100,000 $115,000 2 2011 2031 20 65% $74,750 $74,750 18 Raise Intermediate Degritter wall $250,000 $287,500 2014 2034 20 50% . $143,750 $143,750 19 Replace secondary scum pumps and piping 880,000 $92,000 2 1011 1031 20 100% $92,000 $92,000 20 RAS/WAS Pumping 81,020,000 $1,173,000 2 2011 2031 20 65% $762,450 $704,428 $58,022 21 DAFT air compressor/pipes $65,000 $74,750 2011 2031 20 65% $48,588 $48,588 26 Closure of South Lagoon $111,000 $127,650 2011 2011 0 100% $127,650 $127,650 28 Replace Flare $68,000 $78,200 2016 2036 20 40% $31,280 $31,280 29 New boiler/hot water 8245,000 $281,750 2020 2040 20 20% $56,350 $52,062 $4,288- 31 Additional Primary Digester $5,384,000 $6,191,600 2010 2040 30 4796 $2,889,413 $2,669,529 $219,884 32 Thermophillc Digestion (TPAD) $5,174,000 $5,950,100 2018 2048 30 2096 $1,190,020 $1,190,020 33 Biosolids and Truck Storage $1,926,000 $2,214,900 2 2008 2028 20 80% $1,771,920 81,771,920 34 Administration building modifications $500,000 $575,000 2014 2034 20 5O96 $287,500 $265,621 $21,879 35 Laboratory/ instrumentation (0-6) $90,000 $103,500 1 _ 2006 2016 10 100% $103,500 $103,500 35 Laboratory/ Instrumentation (14-20) $35,000 $40,250 2020 2030 10 40% $16,100 $16,100 36 Odor Control Weather protection $50,000 $57,500 2 2008 2028 20 8096 846,000 $46,000 37 Emission Control lmprovements $1,112,000 $1,278,800 2 2008 2028. 20 80% $1,023,040 $1,023,040 $26,793,000 $16,554,078 $2,506,310 $5,034,029 $8,327,793 $685,945 $9,013,738 54.5% Expansion Portion Capital Cost per 1.0 gallon per day of "Average" Strength Wastewater for Required Facility Expansion Actual Cost f per 1.0 gallon per day flow expansion see Table 7 Zone 1, ZONE 2_,_TH/UG $8,327,793 4.1483 mill gals per day $2.008 ZONE 3 $685,945 0.3417 mill gals per day 82.008 Allocation of Mandates included in Monthly Rates L Allocation of Renewal/Safety included in Monthly Rates 1 10/25/07 TABLE 7 Required Additional Treatment Facility Hydraulic Capacity 10/25/07 Projected Total Flow 2024 Design Conditions Table 1-5 Facility plan Total Service Area 22.60 mgd for TOTAL Service Area TOTAL 22.60 = 22.60 million gallons per day (mgd) average day maximum month Maintain Adequate Reserve (15%) + 3.39 mgd for TOTAL Service Area (incl TH&UG) Future Required Capacity = 25.99 mgd for TOTAL Service Area Existing Capacity - (21.50) mgd for TOTAL Service Area Required Expansion = 4.490 mgd for TOTAL Service Area - 0.3637 mgd 8.10% Union Gap - 0.1796 mgd 4.00% Terrace Heights Required Expansion - 0.3417 mgd 7.61% Zone 3 Required Expansion - 3.6050 mgd 80.2996 Zone 1 A, 1 B, 2 Required Expansion = 4.1483 mgd 92.3996 Zone 1A, 1B, 2, TH/UG 10/25/07 TABLE 8 Equitable Share of FUTURE TREATMENT FACILITY ACTUAL COST per New Single Dwelling Unit (SDU) 10/25/07 Average Monthly flow for future SDU's (see Table 4) 9.2 UOC/month/SDU assume future usage simlar to existing 227 av galls/D/SDU PER SINGLE DWELLING UNIT (SDU) Z1, Z2 Z3 Adjusted Adjusted See unit costs on TABLE 6 Historic Cost Historic Cost Capital Cost per new Dwelling Unit for Existing Facility Z1A, 1B, 2 265 X 2.008 = $532.12 Z3 265 X 2.008 = $532.12 Equitable Share Treatment Facility $532.12 $532.12 Z1, Z2 Z3 Average Equitable Equitable Water Gallons Share of Share of Meter per Day Adjusted Adjusted Size (from bills) Historic Cost Historic Cost SDU 250 $532.12 $532.12 Multifamily Housing (single building) units 2-4 .8 SDU/unit per unit $425.70 $425.70 units 5 + .64 SDU / unit per unit $340.56 $340.56 10/25/07 TABLE 9 Required Additional Treatment Facility BOD and TSS Capacity 10/Z'/07 2024 Design Conditions Projected Total BOD TSS Table 1-5 Facility plan Total Service Area 58,486 43,151 ppd Average pounds per day -maximum month Maintain Adequate Reserve (15%) + 8,773 6,473 ppd for TOTAL Service Area (incl TH&UG) Future Required Capacity = 67,259 49,624 ppd for TOTAL Service Area Existing Capacity = (53,400) (38,600) ppd for TOTAL Service Area Required Expansion = 13,859 11,024 ppd for TOTAL Service Area = 1,123 893 ppd 8.10% Union Gap = 554 441 ppd 4.00% Terrace Heights Required Expansion, = 1,055 839 ppd 7.61% Zone 3 Required Expansion = 11,127 8,851 ppd Zone 1A, 1B, 2 Required Expansion = 12,182 9,690 ppd for Yakima Service Area 10/Z'/07 Table 10 Non-domestic Dischargers FUTURE Unit Cost Element of Connection Charge Description Projected Cost Component Factor (%) Cost Component $ Expense Flow BOD TSS FOG Flow. BOD TSS FOG (table 6) 20.00% 43.00% 35.00% 2.00% ZONE 1A, 1B, 2 Future treatment 8,327,793 1,665,559 3,580,951 2,914,728 166,556 ZONE 3 Future treatment 685,945 137,189 294,956 240,081 13,719 20 yr Future Existing Expansion Zone 1A, 1B, 2 Zone 3 Zone 1A, 1B, 2 Zone 3 FUTURE Plant Permitted TH/UG Capacity TH/UG Capacity Capacity Capacity 7 61% Unit Cost Unit Cost 92.39% Hydraulic Flow Flow (mgd) 25,990,000 (table 7). 21,500,000 4,490,000 4,148,311 341,689 $0.402 $0.402 (gal/av day -max mn) Biochemical Oxygen Demand BOD (lbs/d) 67,259 (table 9) 53,400 13,859 12,804 1,055 $279.67 $279.67 (Ib/av day -max mn) Total Suspended Solids TSS (lbs/d) 49,624 (table 9) 38,600 11,024 10,185 839 $286.18 $286.18 (Ib/av day -max mn) 10/25/07 Table 1 1 Domestic Dischargers and Non-domestic Dischargers SDU or Unit Cost BASE TREATMENT ELEMENT 10/?' /07 ZONE 1 A, 1 B, 2 ZONE 3 Historic Future Total Historic Future Total DOMESTIC DISCHARGERS (table 4) (table 8) (table 4) (table 8) SDU $258.11 $532.12 $790.23 $598.64 $532.12 $1,130.76 (table 2) (table 6) (table 2) (table 6) Non-residential Domestic Discharger $0.974 $2.008 $2.982 $2.259 $2.008 $4.267 (gal/av day -max mn) ZONE 1A, 1B, 2 ZONE'3 NON-DOMESTIC DISCHARGERS Historic Future Total Historic Future Total (table 5) (table 10) (table 5) (table 10) Hydraulic Flow Flow (gal/av day -max mn) $0.195 $0.402 $0.597 $0.452 $0.402 $0.854 Biochemical Oxygen Demand BOD (Ib/av day -max mn) $168.58 $279.67 $448.25 $391.10 $279.67 $670.77 Total Suspended Solids TSS (Ib/av day -max mn) $189.83 $286.18 $476.01 $440.40 $286.18 $726.58 10/?' /07 TABLE 1 2-P 50% Parcel Size EXISTING TRUNKS INTERCEPTORS HISTORIC COST adjusted for Interest 10/25/07 Historical % % % % Less Interest to Adjusted Adjusted Adjusted Adjusted Description Year Cost Existing Z1A Z1B Z2 Z3 Federal/State 2008 Value Value Value Value Pipe East of 40th West of 40th Grants 2x or 10 yrs Zone 1 A Zone 1 8 Zone 2 Zone 3 (HC) City City UA IUA (Gr) Int. (HC-Gr)*Z1A*Int (HC-Gr)*Z1B*Int (HC-Gr)*Z2*Int (HC)*Z3*Int Sanitary Sewer Trunks/Interceptors 3.4096 Trunks (1957-1959) 1958 $48,014 10096 0% 0% , 046 1 40 $67,219 $0 -$0 $0 Trunks (1960) 1960 $26,131 6096 4096 096 0% 1 40 $21,950 $14,633 $0 $0 Trunks (1957-1984) 1980 $665,840 40% 6096 0% 096 1 40 $372,870 $559,306 $0 $0 Land and Land Rights 7.6096 W.V Intercepter 1985 $81,426 1096 8056 1% 9% 2.00 $16,285 $130,282 $1,629 $14,657 S. Frultvale Interceptor 1985 $10,026 9096 596 096 596 2.00 $18,047 $1,003 $0 $1,003 River Road Intercepter 1985 $6,110 7096 3096 096 096 2.00 $8,554 $3,666 $0 $0 Trunks (1985 W.V. Interceptor) 1985 $3,661,042 1096 80% 196 9% $3,239,992 2.00 $84,210 $673,679 $8,421 $658,987 Trunks (1985 S. Fruitvale Inter) 1985 $714,500 9096 546 0% 546 $611,900 2.00 $184,679 $10,260 $0 $71,450 Trunks (1985 River Rd. Inter) 1985 $435,528 7096 3096 . 096 0% $378,874 2.00 $79,316 $33,993 $0 $0 Trunks (1985 Fairview -Sumac) 1985 $342,418 100% 0% 096 096 $264,188 2.00 $156,460 $0 $0 $0 Trunks (1985 83rd. Ave) 1985 $36,159 096 90% 10% 0% 2.00 $0 $65,087 $7,232 $0 Trunks (1985 72nd. Ave) 1985 $78,922 0% 10096 046 0% 2.00 $0 $157,844 $0 $0 6.1496 Land and Land Rights (Don Young P 1992 $350,162 43.546 26.2% 3.296 27 196 1.81 $275,700 $166,054 $20,281 $171,758 Structure (Don Young Property) 19 1993 $900,000 43.596 26.2% 3.2% 271% 1.81 $708,615 $426,798 $52,128 $441,459 South 64th Extension 1995 $268,993 0% 50% 096 5096 $196,485 1.81 $0 $65,620 $0 $243,439 Trunk 7th. Ave Interceptor 1995 1995 $1,796,583 6596 20% 096 1596 1.81 $2,113,680 $650,363 $0 $487,772 Pierce Ave 1997 $352,165 10096 096 0% 0% 1.81 $637,419 $0 $0 $0 N. 1stStr 1998 $910,133 35% 25% 196 39% 1.81 $578,048 $412,891 816,516 $644,110 Airport South 1998 $929,583 096 4096 20% 40% $850,000 1.81 $0 $57,766 $28,883 $674,744 5.0096 Ahtanum/Apple Tree 2001 $1,216,739 096 40% 096 60% $791,739 141 $0 $239,207 $0 $1,027,245 96th Ave 2004 $642,174 046 35% 0% 65% 1.22 $0 $273,198 $0 $507,368 Washington Ave. Ph #1 2005 $2,834,452 096 55% 5% 40% 1 16 $0 $1,804,678 $164,062 $1,312,493 Washington Ave Ph #2 2006 $569,250 0% 50% 0% 5096 1 10 $0 $313,799 $0 $313,799 Speedway Int 2006 $1,722,318 5096 10% 0% 4096 110 $949,428 $189,886 $0 8759,542 River Road 2007 $2,970,000 0% 3096 096 7096 1.05 $0 $935,550 $0 $2,182,950 Total Trunks/Interceptors $21,568,668 86,333,178 $6,272,480 $7,185,561 $299,151 $9,512,776 Equity Position (Table 3) 80.79% $5,067,537 $5,805,215 $241,684 $7,685,372 Zone 1A (5096) $2,533,768, Zone 16 (50%) $2,902,607 Zone 2 (50%) $120,842 Zone 3 (5096) $3,842,686 Zone 1A Zone 16 Zone 2 Zone 3 Total Acres 10,908 6,557 805 6,781 Future parcel acres 8096 8,726 7596 4,918 7096 564 7096 4,747 Future (20yr) connected parcel acres 95% 8,290 95% 4,67250% 282 5096 2,373 $ per acre sewered $305.64$621.30 $428.90 $1,619.10 $ per square foot 80.007 80.014 $0.010 80.037 Cost per 12,000sf parcel 884.00 8168.00 $120.00 $444.00 10/25/07 TABLE 1 2-F 50% Flow EXISTING TRUNKS INTERCEPTORS HISTORIC COST adjusted for interest 10/25/07 Historical % 96 % 96 Less Interest to Adjusted Adjusted Adjusted Adjusted Description Year Cost Existing Z1A Z1B Z2 Z3 Federal/State 2008 Value Value Value Value Pipe East of 40th West of 40th Grants 2x or 10 yrs Zone 1 A Zone 1 B Zone 2 Zone 3 (HC) City City UA IUA (Gr) Int, (HC-Gr)*Z1A*Int (HC-Gr)*Z1B*Int (HC-Gr)*Z2*Int (HC)*Z3lnt Sanitary Sewer Trunks/Interceptors 3.4096 Trunks (1957-1959) 1958 848,014 100% 0% 0% 0% 1.40 $67,219 50 $0 $0 Trunks (1960) 1960 $26,131 60% 40% 0% 0% 1.40 821,950 $14,633 50 $0 Trunks (1957-1984) 1980 $665,840 40% 60% 0% 096 1.40 8372,870 $559,306 50 80 Land and Land Rights 7.60% W.V. Intercepter 1985 $81,426 10% 80% 1% 996 2.00 $16,285 8130,282 $1,629 $14,657 S. Fruitvale Interceptor 1985 $10,026 90% 596 0% 5% 2.00 818,047 $1,003 $0 $1,003 River Road Intercepter 1985 $6,110 70% 3096 0% 096 2.00 $8,554 $3,666 80 $0 Trunks (1985 W.V. Interceptor) 1985 $3,661,042 10% 80% 1% 9% $3,239,992 2.00 $84,210 $673,679 $8,421 $658,987 Trunks (1985 S. Fruitvale Inter) 1985 $714,500 90% 5% 096 596 $611,900 2.00 $184,679 $10,260 $0 $71,450 Trunks (1985 River Rd. Inter) 1985 $435,528 70% 30% 096 0% 5378,874 2.00 879,316 $33,993 $0 80 Trunks (1985 Fairview -Sumac) 1985 3342,418 100% 0% 0% 096 $264,188 2.00 $156,460 • $0 $0 $0 Trunks (1985 83rd. Ave) 1985 336,159 0% 9096 10% 0% 2.00 $0 $65,087 $7,232 $0 Trunks (1985 72nd. Ave) 1985 878,922 0% 10096 096 096 2.00 $0 $157,844 50 $0 6.14% Land and Land Rights (Don Young P 1992 $350,162 43.5% 26.2% 3.2% 27.1% 1.81 8275,700 $166,054 $20,281 $171,758 Structure (Don Young Property) 19 1993 3900,000 43.5% 26.2% 3.2% 271% 1.81 $708,615 3426,798 $52,128 $441,459 South 64th Extension 1995 $268,993 0% 5096 0% 50% $196,485 1.81 $0 $65,620 $0 $243,439 Trunk 7th. Ave Interceptor 1995 1995 51,796,583 65% 20% 096 15% 1.81 $2,113,680 $650,363 $0 $487,772 Pierce Ave 1997 $352,165 100% 0% 096 0% 1.81 $637,419 80 $0 $0 N. 1stStr 1998 $910,133 35% 2596 196 39% 1.81 $578,048 $412,891 516,516 $644,110 Airport South 1998 3929,583 0% 4096 20% 40% 8850,000 1.81 50 $57,766 $28,883 8674,744 5.00% Ahtanum/Apple Tree 2001 $1,216,739 0% 4096 0% 6096 $791,739 1.41 50 5239,207 $0 $1,027,245 96th Ave 2004 3642,174 0% 35% 0% 6596 1.22 50 $273,198 $0 $507,368 Washington Ave. Ph #1 2005 $2,834,452 0% 5596 596 4096 1.16 30 $1,804,678 $164,062 $1,312,493 Washington Ave Ph #2 2006 $569,250 096 5096 096 5096 1 10 50 5313,799 80 $313,799 Speedway Int 2006 81,722,318 50% 10% 0% 40% 1.10 8949,428 $189,886 $0 5759,542 River Road 2007 $2,970,000 096 30% 096 7096 1.05 $0 $935,550 $0 $2,182,950 Total Trunks/Interceptors 821,568,668 $6,333,178 $6,272,480 $7,185,561 $299,151 $9,512,776 Equity Position (Table 3) 80.79% $5,067,537 $5,805,215 $241,684 $7,685,372 Zone 1A (5096) 52,533,768 Zone 1B (50%) $2,902,607 Zone 2 (50%) 8120,842 Zone 3 (50%) 83,842,686 Zone 1A Zone 1B Zone 2 Zone 3 TH/UG Totals Total Acres 10,908 6,557 805 6,781 n/a 25,050 Percent total acres 43.5% 26.296 3.296 27 1% n/a Percent 96 Flow 49.696 29.896 0.90% 7.61% 12.1% 25,990,000 TOTAL FIow mgd 12,885,842 7,747,619 233,910 1,977,839 3,144,790 $ per gallon 30.197 $0.375 $0.517 $1.943 $ per MU $52.11 *99.28 *136.90 *514.86 265 gpd/SDU 10/25/07 TABLE 13-P 50% Parcel ACTUAL COST FUTURE TRUNKS / INTERCEPTORS ZONE ALLOCATION 10/25/07 Total Cost Updated Cost % % % % Description New Pipe New Pipe Zone 1A ZONE 1A Zone 1B ZONE 1B Zone 2 ZONE 2 Zone 3 ZONE 3 Sept. 2006 CPI Sept. 2007 CPI 202.90 208.49 103% New Interceptors Speedway Interceptor Phase two $2,346,812 $2,411,468 15% $361,720 0% $0 0% $0 85% $2,049,748 Congdon $2,400,000 $2,466,121 0% $0 30% $739,836 5% $123,306 65% $1,602,979 Suntides/Gleed $6,594,909 $6,776,602 0% $0 10% $677,660 0% $0 90% $6,098,942 Cowiche Canyon $3,781,380 ' $3,885,559 0% $0 15% $582,834 0% $0 85% $3,302,725 Wide Hollow/Summitview $2,700,000 $2,774,386 0% $0 25% $693,597 5% $138,719 70% $1,942,070 Coolidge $600,000 $616,530 0% $0 40% $246,612 0% $0 60% $369,918 Wiley Extension $6,508,140 $6,687,443 0% $0 _ 0% $0 0% $0 100% $6,687,443 West valley high $1,500,000 $1,541,326 0% $0 40% $616,530 0% $0 60% $924,795 Summit view extension $1,200,000 $1,233,061 0% $0 0% $0 0% $0 100% $1,233,061 Airport Extension $4,000,000 $4,110,202 0% $0 10% $411,020 50% $2,055,101 40% $1,644,081 subtotal $31,631,241 $32,502,698 1% $361,720 12% $3,968,090 7% $2,317,126 80% $25,855,762 TOTAL New Construction (buildout) $31,631,241 $32,502,698 $361,720 $3,968,090 $2,317,126 $25,855,762 Total used by 2024 15.5/18.5 (1) $27,231,990 $303,063 $3,324,616 $1,941,376 $21,662,936 (1) total buildout cost reduced by ratio of 2024 AADF/Buildout AADF 83.8% ZONE 1A (50%) $151,531 Note: None of these pipes will be used by TH or UG. ZONE 1B (50%) $1,662,308 ZONE 2 (50%) $970,688 ZONE 3 (50%) $10,831,468 Zone 1A Zone 1B Zone 2 Zone 3 Future Total Connected Parcel Acres (see Table 12-P) 8,290 4,672 282 2,373 Existing Connected Parcel Acres 75% 6,218 55% 2,570 5% 14 5% 119 New Connected Parcel Acres 2,073 2,102 268 2,254 $ per acre to be connected $73 12 $790.67 $3,623.32 $4,804.70 $ per square foot $0.002 $0.018 $0.083 $0.110 Cost per 12,000sf parcel $20.14 $217.82 $998.16 $1,323.61 10/25/07 TABLE 13-F 50% Flow ACTUAL COST FUTURE TRUNKS / INTERCEPTORS ZONE ALLOCATION 10/25/. Total Cost Updated Cost % % % % Description New Pipe New Pipe Zone 1 A ZONE 1 A Zone 1B ZONE 1B Zone 2 ZONE 2 Zone 3 ZONE 3 Sept. 2006 CPI Sept. 2007 CPI 202.90 208.49 `, 103% i New Interceptors Speedway Interceptor. Phase two $2,346,812 $2,411,468 15% $361,720 0% $0 0% $0 85% $2,049,748 Congdon $2,400,000 $2,466,121 0% $0 30% $739,836 5% $123,306 65% $1,602,979 Suntides/Gleed $6,594,909 $6,776,602 0% $0 10% $677,660 0% $0 90% $6,098,942 CowicheCanyon $3,781,380 $3,885,559 0% $0 15% $582,834 0% $0 85% $3,302,725 Wide Hollow/Summitview $2,700,000 $2,774,386 0% $0 25% $693,597 5% $138,719 70% $1,942,070 Coolidge $600,000 $616,530 0% $0 40% $246,612 0% $0 60% $369,918 Wiley Extension $6,508,140 $6,687,443 0% $0 0% $0 0% $0 100% $6,687,443 West valley high $1,500,000 $1,541,326 096 $0 4096 $616,530 0% $0 60% $924,795 Summit view extension $1,200,000 $1,233,061 0% $0 0% $0 096 $0 100% $1,233,061 Airport Extension $4,000,000 $4,110,202 0% $0 1046 $411,020 50% $2,055,101 4046 $1,644,081 sub total $31,631,241 $32,502,698 1% $361,720 12% $3,968,090 7% $2,317,126 80% $25,855,762 TOTAL New Construction (buildout) $31,631,241 $32,502,698 $361,720 $3,968,090 $2,317,126 $25,855,762 Total used by 2024 15.5/18.5 (1) $27,231,990 $303,063 $3,324,616 $1,941,376 $21,662,936 (1) total buildout cost reduced by ratio of 2024 AADF/Buildout AADF 83.896 ZONE 1A (50%) $151,531 Note: None of these pipes will be used by TH or UG. ZONE 1B (5096) $1,662,308 ZONE 2 (50%) $970,688 ZONE 3 (5096) $10,831,468 Zone 1A Zone 1B Zone 2 Zone 3 TH/UG Percent 96 New Flow (see Table 1) 13.46% 34.51% 4.24% 35.6946 12.1% TOTAL NEW Flow 604,354 1,549,499 190,376 1,602,481 543,290 $ per gallon $0.251 $1.073 $5.099 $6.759 $ per SDU $66.44 $284.29 $1,351.18 $1,791.18 at 265 gpd/SDU 10/25/. TABLE 1 4-F 50% Flow EXISTING COLLECTION SYSTEM "HISTORIC COST" adjusted for interest 10/25/07 Historical Less Local Interest Adjusted % 96 % % Description Year Cost Existing Federal/State Cash to Value Zone 1A ZONE 1A Zone 1B ZONE 1 B Zone 2 ZONE 2 Zone 3 ZONE 3 Pipe Grants (LC) 2008 Local Cash (HC) (Gr) LC = HC -Gr max 10 yrs LC*Int Sanitary Sewer Collection System 3.4096 Laterals (1969-1971) 1970 $14,116 $0 $14,116 1.40 $19,762 8096 815,810 20% $3,952 096 $0 096 $0 Laterals (1961-1975) 1975 $444,719 $0 $444,719 1.40 $622,607 8096 $498,085 2096 $124,521 096 $0 0% $0 7.6096 Laterals (1962-1985) 1985 $4,495,797 80 $4,495,797 2.00 $8,991,594 80% $7,193,275 2096 81,798,319 096 80 046 80 Laterals (1965-1990) 1988 $4,410,420 80 $4,41(1,420 2.00 $8,820,840 7096 _ $6,174,588 3096 $2,646,252 096 $0 096 $0 Laterals (1987-1990) 1989 $2,363,828 80 $2,363,828 2.00 $4,727,656 5096 $2,363,828 5096 $2,363,828 096 80 096 80 Laterals (1991-1994) 1993 $832,571 $0 $832,571 2.00 $1,665,142 50% $832,571 5096 $832,571 046 $0 0% 80 Laterals (1995) 1995 $616,452 80 $616,452 2.00 $1,232,905 3056 $369,871 6596 $801,388 596 $61,645 0% $0 Laterals (1996) 1996 $603,211 $0 $603,211 2.00 $1,206,422 1096 $120,642 8096 $965,138 1046 $120,642 096 $0 ,Laterals (1997) 1997 $378,014 80 $378,014 2.00 $756,028 10% $75,603 9096 $680,425 0% $0 096 80 Laterals (1998) 1998 $441,735 80 $441,735 2.00 $883,470 10% 888,347 8096 $706,776 10% $88,347 096 80 Laterals (1999) 1999 $2,114,911 $0 $2,114,911 1.93 $4,088,863 1596 $613,329 8096 $3,271,090 596 $204,443 0% $0 Laterals (2000) 2000 $490,944 $0 8490,944 1.80 $882,126 596 844,106 9596 8838,019 0% $0 0% $0 5.0096 Laterals (2001) 2001 $461,475 80 $461,475 141 $649,342 5% 832,467 2596 8162,335 096 80 7096 $454,539 Laterals (2002) 2002 $144,883 $0 $144,883 1.34 $194,157 1096 $19,416 8056 8155,326 096 $0 10% 819,416 Laterals (2003) 2003 $201,529 80 $201,529 1.28 8257,208 1056 $25,721 8096 $205,766 096 $0 10% $25,721 Laterals (2004) 2004 $358,750 $0 $358,750 1.22 $436,063 596 $21,803 8096 $348,850 096 $0 15% $65,409 Laterals (2005) 2005 $368,400 $0 $368,400 1.16 $426,469 0% $0 7096 $298,528 096 $0 3096 $127,941 Laterals (2006) 2006 $453,253 $0 $453,253 1.10 $499,711 0% $0 8096 $399,769 046 80 2096 $99,942 Total Collection system $19,195,009 80 $19,195,009 $36,360,364 5196 818,489,463 9096 $16,602,855 196 $475,078 2% $792,968 ZONE 1 (5096) $9,244,732 ZONE 1 (5096) $8,301,428 Note: None of these pipes will be used by TH or.UG. ZONE 2 (5096) 8237,539 ZONE 3 (5096) 8396,484 Zone 1A Zone 18 Zone 2 Zone 3 TH/UG Percent 96 Flow 43.3046 30.6096 1.50% 12.5096 12.1% TOTAL Flow 11,253,670 7,952,940 389,850 3,248,750 3,144,790 25,990,000 mgd 25,990,000 $ per gallon 80.821 $1.044 . 80.609 $0.122 $ per SDU $217.69 8276.61 $161.47 $32.34 at 265 gpd/SDU 10/25/07 TABLE 1 4-P 50% Parcel EXISTING COLLECTION SYSTEM "HISTORIC COST" adjusted for interest 10/25/Q' Historical Less Local Interest Adjusted % % % % Description Year Cost Existing Federal/State Cash to- Value Zone 1 A ZONE 1 A Zone 1B ZONE 1B Zone 2 ZONE 2 Zone 3 ZONE 3 Pipe Grants (LC) 2008 Local Cash (HC) (Gr) LC = HC -Gr max 10 yrs LC*Int Sanitary Sewer Collection System 3.40% Laterals (1969-1971) 1970 814,116 $0 $14,116 1.40 $19,762 80% 815,810 20% $3,952 0% $0 - 0% 80 Laterals (1961-1975) 1975 $444,719 $0 $444,719 1.40 $622,607 80% $498,085 20% 8124,521 0% $0 0% $0 7.60% - Laterals (1962-1985) 1985 $4,495,797 $0 $4,495,797 2.00 $8,991,594 80% $7,193,275 20% $1,798,319 0% $0 0% 80 Laterals (1965-1990) 1988 $4,410,420 $0 84,410,420 2.00 $8,820,840 70% $6,174,588 30% $2,646,252 0% 80 0% $0 Laterals (1987-1990) 1989 82,363,828 80 82,363,828 2.00 $4,727,656 50% 82,363,828 50% $2,363,828 0% $0 0% 80 Laterals (1991-1994) 1993 $832,571 $0 $832,571 2.00 81,665,142 50% $832,571 50% $832,571 0% $0 0% $0 Laterals (1995) 1995 $616,452 $0 $616,452 2.00 $1,232,905 30% $369,871 65% $801,388 5% 861,645 0% $0 Laterals (1996) 1996 $603,211 $0 $603,211 2.00 81,206,422 10% $120,642 80% $965,138 10% $120,642 0% 80 Laterals (1997) 1997 8378,014• $0 8378,014 2.00 $756,028 10% $75,603 90% $680,425 0% 80 0% $0 Laterals (1998) 1998 $441,735 $0 $441,735 2.00 $883,470 10% $88,347 80% $706,776 10% $88,347 0% 30 Laterals (1999) 1999 $2,114,911 $0 82,114,911 1.93 84,088,863 15% $613,329 80% $3,271,090 5% $204,443 0% $0 Laterals (2000) 2000 $490,944 $0 $490,944 1.80 $882,126 5% $44,106 95% 8838,019 0% $0 0% $0 5.00% Laterals (2001) 2001 $461,475 $0 $461,475 1.41 8649,342 5% 832,467 25% $162,335 0% $0 70% $454,539 Laterals (2002) 2002 $144,883 $0 $144,883 1.34 $194,157 10% $19,416 80% $155,326 0% 80 10% 819,416 Laterals (2003) 2003 $201,529 $0 $201,529 1.28 $257,208 10% $25,721 80% $205,766 0% $0 10% $25,721 Laterals (2004) 2004 $358,750 $0 $358,750 1.22 $436,063 5% $21,803 80% $348,850 0% $0 15% $65,409 Laterals (2005) 2005 8368,400 50 8368,400 1.16 8426,469 0% 80 70% $298,528 0% $0 30% 8127,941 Laterals (2006) 2006 $453,253 $0 $453,253 1.10 8499,711 0% $0 80% $399,769 0% $0 20% 899,942 Total Collection system 819,195,009 $0 $19,195,009 836,360,364 51% 818,489,463 90% $16,602,855 1% 8475,078 2% $792,968 ZONE 1 (50%) $9,244,732 ZONE 1 (50%) 88,301,428 Note: None of these pipes will be used by TH or UG. ZONE 2 (50%) $237,539 ZONE 3 (50%) 3396,484 Zone 1A Zone 1B Zone 2 Zone 3 Future Connected Parcel Acres 8,290 4,672 282 2,373 $ per acre sewered 81,115.17 81,776.85 3842.34 $167.08 $ per square foot $0.026 80.041 80.019 $0.004 Cost per 12,000 sf parcel $307.21 3489.49 3232.05 846.03 10/25/Q' TABLE 15 FLOW / Parcel Size ACTUAL COST FUTURE COLLECTION ALL ZONES ALLOCATION 10/25/07 Cost of Collection Piping $180 lineal foot Lineal feet per parcel acre 180 Cost per parcel acre $32,400 Cost per parcel square foot $0.744 One-half rate $0.372 per sq foot Parcel Size (S.F. average) 8,500 Houses per acre 5.12 Cost per house $6,322.31 Cost per gallon per day at 250 gals per SDU (50%) $12.64 per gal per day 10/25/07 TABLE 16 8,000sf parcel 50% Flow 5096 Parcel Size TOTAL PROPOSED WASTEWATER CONNECTION CHARGE FLOW BASED FLOW BASED 50% PARCEL SIZE BASED 5096 ADMINISTRATION and TAXES D E F G H I J K L M N 0 P Q TOTAL Total Historic Actual/Future Historic Actual/Future Historic Actual/Future Historic Actual/Future City Services Admin WASTEWATER Treatment Trunks Trunks Collection Collection Trunks Trunks Collection Collection Utility Tax $50.00 CONNECTION Table 12-F Table 13-F Table 14-F Table 15 Table 12-P Table 13-P Table 14-P Table 15 @ 20% per Parcel CHARGE 250 gpd 8,000 ZONE 1A $790.23 $0.197 $0.251 $0.821 $12.640 $0.007 $0.002 $0.026 $0.372 Example 1: SDU with developer installed collection system. $790.23 $49.25 $62.75 $205.25 $0.00 $56.00 $16.00 $208.00 $0.00 $277.50 $50.00 $1,714.98 Example 2: SDU connecting to City installed collection system and Trunk. $790.23 $49.25 $62.75 $205.25 $1,580.00 $56.00 $16.00 $208.00 $1,488.00 $891.10 $50.00 $5,396.58 ZONE 1 B $790.23 $0.375 $1.073 $1.044 $12.640 $0.014 $0.018 $0.041 $0.372 _ Example 1: SDU with developer installed collection system. $790.23 $93.75 $268.25 $261.00 $0.00 $112.00 $144.00 $328.00 $0.00 $399.45 $50.00 $2,446.68 Example 2: SDU connecting to City installed collection system and Trunk. $790.23 $93.75 $268.25 $261.00 $1,580.00 $112.00 $144.00 $328.00 $1,488.00 $1,013.05 $50.00 $6,128.28 ZONE 2 $790.23 $0.517 $5.099 $0.609 $12.640 $0.010 $0.083 $0.019 $0.372 Example 1: SDU with developer installed collection system. $790.23 $129.25 $1,274.75 $152.25 $0.00 $80.00 $664.00 $152.00 $0.00 $648.50 $50.00 $3,940.98 Example 2: SDU connecting to City installed collection system and Trunk. $790.23 $129.25 $1,274.75 $152.25 $3,160.00 $80.00 $664.00 $152.00 $2,976.00 $1,875.70 $50.00 $11,304.18 ZONE 3 $1,130.76 $1.943 $6.759 $0.122 $12.640 $0.037 $0.110 $0.004 $0.372 Example 1: SDU with developer installed collection system. $1,130 76 $485.75 $1,689.75 $30.50 $0.00 $296.00 $880.00 $32.00 $0.00 $908.95 $50.00 $5,503.71 Example 2: SDU connecting to City installed collection system and Trunk. $1,130.76 $485.75 $1,689.75 $30.50 $3,160.00 $296.00 $880.00 $32.00 $2,976.00 $2,136.15 $50.00 $12,866.91 10/20 TABLE 16 12,000sf parcel 50% Flow 50% Parcel Size TOTAL PROPOSED WASTEWATER CONNECTION CHARGE FLOW BASED FLOW BASED 50% PARCEL SIZE BASED 50% ADMINISTRATION and TAXES D E F G H I J K L M N 0 P Q TOTAL Total Historic Actual/Future Historic Actual/Future Historic Actual/Future Historic Actual/Future City Services Admin WASTEWATER Treatment Trunks Trunks Collection Collection Trunks Trunks Collection Collection Utility Tax $50.00 CONNECTION Table 12-F Table 13-F Table 14-F Table 15 Table 12-P Table 13-P Table 14-P Table 15 @ 20% per Parcel CHARGE 250 gpd 12,000 ZONE 1A $790.23 $0.197 $0.251 $0.821 $12.640 $0.007 $0.002 $0.026 $0.372 Example 1: SDU with developer installed collection system. $790.23 $49.25 $62.75 $205.25 $0.00 $84.00 $24.00 $312.00 $0.00 $305.50 $50.00 $1,882.98 Example 2: SDU connecting to City installed collection system and Trunk. $790.23 $49.25 $62.75 $205.25 $1,580.00 $84.00 $24.00 $312.00 $2,232.00 $1,067.90 $50.00 $6,457.38 ZONE 1 B $790.23 $0.375 $1.073 $1.044 $12.640 $0.014 $0.018 $0.041 $0.372 Example 1: SDU with developer installed collection system. $790.23 $93.75 $268.25 $261.00 $0.00 $168.00 $216.00 $492.00 $0.00 $457.85 $50.00 $2,797.08 Example 2: SDU connecting_to City installed collection system and Trunk. $790.23 $93.75 $268.25 $261.00 $1,580.00 $168.00 $216.00 $492.00 $2,232.00 $1,220.25 $50.00 $7,371.48 ZONE 2 $790.23 $0.517 $5.099 $0.609 $12.640 $0.010 $0.083 $0.019 $0.372 _ Example 1: SDU with developer installed collection system. $790.23 $129.25 $1,274.75 $152.25 $0.00 $120.00 $996.00 $228.00 $0.00 $738.10 $50.00 $4,478.58 Example 2: SDU connecting to City installed collection system and Trunk. $790.23 $129.25 $1,274.75 $152.25 $3,160.00 $120.00 $996.00 $228.00 $4,464.00 $2,262.90 $50.00 $13,627.38 ZONE 3 $1,130.76 $1.943 $6.759 $0.122 $12.640 $0.037 $0.110 $0.004 $0.372 Example 1: SDU with developer installed collection system. $1,130.76 $485.75 $1,68975 $30.50 $0.00 $444.00 $1,320.00 $48.00 $0.00 $1,029.75 $50.00 $6,228.51 Example 2: SDU connecting to City installed collection system and Trunk. $1,130.76 $485.75 $1,689.75 $30.50 $3,160.00 $444.00 $1,320.00 $48.00 $4,464.00 $2,554.55 $50.00 $15,377.31 10/26/07 Existing Proposal Existing Proposal Existing Proposal Existing Proposal TABLE 17 Wastewater Connection Charge Comparison Existing -v. Proposed lot size (sf.) 8,000 8,000 $ increase % increase 12,000 12,000 $ increase % increase lot size (sf.) 8,000 8,000 $ increase % increase 12,000 12,000 $ increase % increase x Future collection element WAIVED Zone 1A Zone 1B $ 2,202.78 $ $ 1,714.98 $ $ (487.80) $ -22% $ 2,505.18 $ $ 1,882.98 $ $ (622.20) $ -25% 2,202.78 $ 2,446.68 $ 243.90 $ 11% 2,505.18 $ 2,797.08 $ 291.90 $ 12% Future collection element INCLUDED Zone 1A /2 $ 5,528.76 $ $ 5,396.58 $ $ (132.18) $ - 2% $ 6,620.76 $ $ 6,457.38 $ $ (163.38) $ - 2% Zone 1B /2 5,528.76 $ 6,128.28 $ 599.52 $ 11% 6,620.76 $ 7,371.48 $ 750.72 $ 11% Zone 2 3,745.30 $ 3,940.98 $ 195.68 $ 5% 4,345.30 $ 4,478.58 $ 133.28 $ 3% Zone 2 10,397.25 11,304.18 906.93 9% Zone 3 12,576.45 $ 13,627.38 $ 1,050.93 $ 8% 5,262.82 5,503.71 240.89 5% 6,050.02 6,228.51 178.49 3% Zone 3 11,914.77 12,866.91 952.14 8% 14,281.17 15,377.31 1,096.14 8%