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HomeMy WebLinkAbout01/16/1990, 7 - ARCHITECTURAL REVIEW COMMISSION (ARC) REVIEW: CARBON FILTRATION UNITS AT AUTO PARKWAY AND DALIDIO P MEEnNG Dare. a � city of San WIS OBISp0 January 16 1990 r COUNCIL AGENDA REPORT MNMSM: ,PECEIVEA FROM: William T. Hetland �'r PARED BY Allen Short Utilities Director JAN 0 91990 Water Division Manager SUBJECT: 10.0.2 A,11. spy CITY CLERK Architectural Review to ssfg8'I�A (ARC) Review: Carbon Filtration Units at Auto Parkway and Dalidio Property. RECOMMENDATION: Waive existing conditions and ARC review requirements associated with the development and operation of groundwater supplies during the declared water emergency. BACKGROUND- The City has actively pursued groundwater development as a viable option to supplementing its surface water supply. There have been a number of test wells drilled and developed throughout the city over the past year and a half. once the well site has been identified, it is drilled, cased, and gravel packed. It is then sampled to determine water quality and compliance with the State of California ' s water quality -- requirements. The analyses for the Auto Parkway and Dalidio wells exhibited levels of Tetrachloroethylene (PCE) and Trichloroethylene (TCE) above the maximum contaminant level of 5. 0 ug/l established by the State. To meet health standards and make the water safe for human consumption, staff recommended, and the City Council approved, carbon filtration as the most viable option to remove these contaminants from the water.. The tanks (2) , as they are assembled, stand 21 feet in height, are currently painted grey and contain a large assemble of piping which carries the water from the well through the carbon units into the distribution system. During the installation phase, City Staff filed the appropriate paper work and began working with the City Planning Staff to address the immediate concerns of the project. Because of the visual impact of the tanks and associated buildings, the projects were placed upon the Architectural Review Commission's (ARC) agenda. The projects have appeared before the ARC on two occasions; July 7, 1989 for both installations, December 4 , 1989 for the Dalidio installation, and December 18, 1989 for the Auto Parkway installation. A number of conditions were placed upon the installation of the carbon units (see attachment 1. 0) . The condition which placed the greatest burden was the requirement to move both facilities within a short period of time. The movement of the tanks will incur a 7- 1 city of san tins osispo COUNCIL AGENDA REPORT a on FlItration units January 16, 1990 Page 2 significant financial impact to the City. In order to move the tanks, it is necessary to remove the carbon from the tanks into special tanker trucks and then reinstall the carbon again after the relocation is completed. Piping from the well head must be disconnected and other piping secured to prevent failure during the relocation. In addition, a large crane will be required to pick up the tanks to load them onto a truck for relocation. DALIDIO WELL Currently, the well located on the Dalidio property is operated by j the City on a temporary basis. The City of San Luis Obispo has an agreement with the Dalidio Family to 1) operate the well for up to i thirty-six (36) months, or 2) until the water shortage is declared over, or 3) until the City's two reservoirs fill to 67 percent of total capacity. In any case, the well will be returned to the Dalidio family and the City would remove the carbon filtration units and use them elsewhere. AUTO PARKWAY WELL Initially, a number of concerns were raised by the land and business owners surrounding the well site. The City's legal staff has been in negotiations with the legal representatives for each of the individuals concerned. Currently, all parties have agreed to let the tanks remain in place for a period of up to three years provided a number of conditions have been met. If these conditions are not met a penalty clause has been included. CONSEQUENCES OF NOT TAKING ACTION The City would be required to move the tanks and incur a significant cost in the process. There would be a delay of 60 to 180 days before the wells would be available for service. As a result, the City would not have an additional 1250 gpm (2016 acre feet on an annual basis) of groundwater on line to mitigate the water shortage. FINANCIAL IMPACT Regardless of the distance moved., it is estimated that it will cost approximately $25,000 just to lift the tanks off the existing pad. Additional costs are incurred for the installation of a new water line which will tie into the main line. This cost will vary depending on the distance selected. Relocation of the electrical service, mounting pad, booster pump and chlorination buildings will I also be costly. In addition to moving the tanks, a site must be f-402 ��+�► ��►� �� city of san Luis oBispo COUNCIL AGENDA REPORT a on i a January 16, 1990 Page 3 identified, easements must be obtained, agreements negotiated and approved, and just compensations determined. The site must be carefully selected as not to encounter the same problems and concerns which have been identified at these sites. When accomplished in the most expedient manner, this process alone could take at least 120 to 180 days. However, it is more reasonable to expect that to identify and secure a permanent site, move the tanks and become fully operational , may take in excess of one year. This is providing that delays or road blocks are not encountered. Water production i during a portion of that time will be suspended. I It is difficult to place an exact figure on the cost for movement of each of the facilities because of the many variables involved. Depending upon the distance moved from the present location, the cost to relocate to a permanent location will range from $30, 000 to $100 , 000 each. i If the option chosen is to comply with the ARC's request and move the filtration tanks, there are adequate funds in the water fund to cover this project. This expenditure may require an evaluation of priorities for new CIP projects and projects which have been approved but not completed. Those projects which have a low priority will be eliminated and the money will then be used to fund this project. Purchasing Control Section 201-1 Waivers of Competitive Purchasing, subsection number 2 . will be followed. ALTERNATIVE Based on this current situation staff feels that two alternatives are viable to the Council. They are: I Alternative 1 Waive existing conditions and future ARC review requirements for capital projects associated with the development of groundwater supplies during the declared water emergency. This would eliminate any unforeseen future problems that arise as the City continues to develop groundwater during this water emergency. It is important to note, however, that staff fully intends to minimize to the extent practical the visual impact of facilities and to maintain all well sites in a "neat and orderly manner" (Auto Parkway Condition, Item #3) . I 1*13 11111112f j city of san Luis owspo Mqmliiie COUNCIL AGENDA REPORT January 16, 1990 Page 4 Alternative 2 Waive the condition which requires the City to move the carbon filtration units at both Auto Parkway and Dalidio properties within the specified time required by the ARC. i CONCURRENCE i The Community 'Development Department concurs with the Utilities Staff recommendation. I RECOMMENDATION Waive all existing conditions and future ARC review requirements associated with the development and operation of groundwater i supplies during the declared water emergency. I � Attachment: 1. 0 i I I i I I i i r- � (' 1111 city of san Luis omspo ,Aiig COUNCIL AGENDA REPORT January 16, 1990 Page 4 Alternative 2 Waive the condition which requires the City to move the carbon filtration units at both Auto Parkway and Dalidio properties within .the specified time required by the ARC. CONCURRENCE The Community 'Development Department concurs with the Utilities Staff recommendation. RECOMMENDATION i Waive all existing conditions and future ARC review requirements associated with the development and operation of groundwater supplies during the declared water emergency. I I Attachment: 1. 0 i I I I i r- � U ATTACHMENT 1. 0 AUTO PARKWAY CONDITIONS 1 . The system, including the two tanks and the pump house, shall be removed from the site within 60 days of the original architectural approval (by September 14 , 1989) . 2 . Well equipment left on the site after system removal shall be screened from public view, to the satisfaction of the Community Development Director. 3 . The site shall be maintained in a neat and orderly manner at all times . 4 . The system including the two tanks and the pump house shall be painted Cerrinto Olive. DALIDIO CONDITIONS 1. Investigate alternate sites to relocate the tanks. 2 . The tanks were approved at their present location for 120 days. 3 . The system including the two tanks and the pump house shall be painted Cerrinto Olive. At the December ARC meetings, the decision to move the tanks was upheld.