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HomeMy WebLinkAboutagenda.council.worksession.20090817MEMORANDUM TO: Mayor and Council FROM : April Barker, Stormwater Manager, Engineering THRU: Trish Aragon, P.E., City Engineer Scott Miller, Capital Asset Director DATE OF MEMO: August 14, 2009 MEETING DATE: August 17, 2009 Work Session RE: Stormwater Program (i.e. Clean River Initiative) Annual Report SUMMARY: Staff is presenting recent progress of the Clean River Initiative and the direction of the program for the future. BACKGROUND: In 2006, due to many reports of degraded water quality in the Roaring Fork River (River) within the City of Aspen city limits and a 2001 Stormwater Master Plan that identified an undersized Stormwater conveyance system, a Citizens Review Committee (CRC) was established to discuss the adequacy of Stormwater management activities in the City of Aspen. That group determined that the Stormwater management activities were inadequate and that an improved program must be implemented in order to repair and minimize Stormwater impacts to the River, upsize and improve the City's inadequate and aging drainage system, and prepare for increasing state and federal regulations for municipal Stormwater management programs. The CRC recognized the funding shortage for improved Stormwater management and discussed several different funding options. It was decided that a combination of funding sources from taxes and system development fees would be the best option for Aspen. In May of 2007, City Council approved a System Development Fee of $2.88 chazged to each impervious squaze foot of redevelopment and new development in the City. In November 2007, Referendum 2B was passed that approved funding for the Clean River Initiative by special tax of .065 mils. DISCUSSION: A Stormwater manager was hired in May 2008 to manage and implement the Clean River Initiative. Since that time the Stormwater program has focused on: Preventing pollution from construction sites - we have begun to more strictly enforce the installation of erosion prevention and sediment control measures, o Mechanical Removal Structures will be installed along edge of streets for the purpose of removing street pollutants such as sediment, oil and grease, grit, gravel, and sand. Will involve removal, replacement, and improvement to streets, curb and gutter, inlets, and catch basins. o Street Drainage Corrections are planned for high priority sections of the system. Most of the City's drainage system is undersized and needs to be upgraded. Those improvements are planned to begin with Francis Street and Ute Avenue. As funding allows, those improvements will be continued beginning with high priority sections and working down to low priority then to changes from corrugated metal pipe (CMP) to more stable reinforced concrete pipe (RCP). o Street Drainage Corrections are planned to improve drainage facilities following the master planning of those azeas to determine necessary improvements Other Capital Improvement Projects were identified as necessary by the CRC. However, current funding levels and estimated revenue projections will not allow for completion of these projects. Funding shortages are due to decreased development and redevelopment within the City, therefore decreased revenue from the System Development Fee. The intent of the CRC was for the revenue from taxes to fund $12M over 15 years to cover the operating costs of the program and for the System Development Fees to cover the capital projects for the program. Under current projections the taxes are generating more revenue than development fees. Attachments: Attachment A Attachment B Attachment C Attachment D Attachment E -Original vs. Current Capital Projects List - 2009 AMP -Map of current planned capital projects -Map of capital projects not funded - Revenue projections CITY MANAGER COMMENTS: O O N Q c LL L m 3 C ~ O N ~ O d Y Q ILS ~..~ C Q) L L o 0 0 0 0 o o 0 0 0 0 0 lD O l0 N M Lf1 r1 c--I N 0 0 0 0 0 0 rn o 0 0 o rn ~ o 0 0 0 .-I ~ O O O N lG h 0 0 0 N 01 ~ N N CF Cl l0 M rl N r-I DO 0 0 0 0 o 0 0 o o 0 0 o Vl Ifl N t!1 N O N Q1 I11 ~-1 rl n 0 a, rl r'1 Lf1 O ~ O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O ~ 0 0 0 0 0 O O O O M N M N ~.!') N O N Lf1 N O h M Q1 O O N O N O 00 O M O tJ'f O N O L11 O N O l~ ~f 01 ~ ~"'{ ~ N ~"I i d M r-I M ~-I Q1 M c-I N rl 00 ~ f6 ~--~ Q (d U f9 C .~ ~ L ~ d ~ ~ L v ~ (C O C C ~ ~~ • ~ ~ ~ ~ ~ ~ fC 0 ~ ~~ ~9 C ~ ~ f0 0 f0 0C T o ° ? 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