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Home My WebLink About2.0 BOCC Staff Report 07.06.2015Referral to BOCC July 6, 2015 PROJECT INFORMATION AND STAFF COMMENTS REQUEST Referral to the County regarding Site Approval for Construction of a Sewage Lift Station APPLICANT Sunlight View Water and Wastewater Company PROPERTY OWNER William and Charlotte Zilm ENGINEERS LOCATION SGM, Inc. Justin Kattnig E.I.T. Chad Paulson, P.E., Project Engineer The property is located approximately 2 miles up County Road 117 (Four Mile Road), adjacent to the Sunlight View Subdivision, south of Glenwood Springs. It is located in the SW1A SE/a, Section 34, T6S, R89W. I. GENERAL PROJECT DESCRIPTION The Lift Station Site Application has been referred to the County for comments and recommendation. The Colorado Revised Statutes and Colorado Department of Public Health and Environment (CDPHE) State Regulations call for Lift Stations to be forwarded to the County and Local Health Authority for review and comments. The Sunlight View Lift Station proposal is designed to replace an existing wastewater treatment facility that is reaching the end of its practical service life and is no longer able to meet updated CDPHE standards. The lift station will transport sewage to the City of Glenwood Springs Regional Wastewater Treatment Facility. The lift station will pump into a 3" force main located within County Road 117. The lift station is primarily designed to serve 63 existing developed lots and 25 additional existing Tots in the Sunlight View Subdivision. Additional storage capacity for additional Tots has been included in the design. Detailed sections on design, general operation, maintenance, and emergency operations are included in the submittals. 1 Automatic high level alarms are part of the system and provide auto -dialer notification to the contract operator. The Application outlines the system's back-up capacity, extra storage, redundancy with two grinder pumps, back-up power generator and the ability to pump directly into the force main and bypass the lift station in an emergency situation. The system is designed for a maximum of 1 hour of detention to minimize the potential for odors. A vent system on the duplex grinder pump system is not anticipated to generate any odor concerns but can be retrofitted with a carbon activated odor control system if needed. The grinder pumps are electric and located below grade so noise issues are not anticipated. EXISTING PONDS (to be reclaimed) __1 SITE PLAN COUNTY RD. 117 LIFT STATION EXISTING TREATMENT PLANT The Application includes an agreement with the City of Glenwood Springs outlining their willingness to accept waste from the lift station. The agreement also indicates that the City's recently constructed regional wastewater treatment plant pursuant to its 201 Wastewater Facility Plan considered serving and encompasses the Sunlight View Service Area. The replacement of the existing treatment facility with the lift station will eliminate any discharge to Four Mile Creek and supports improved water quality by utilizing the City's regional facility. II. REVIEW AND STAFF ANALYSIS 1. The CDPHE and State regulations call for Lift Station Application to be forwarded to the County in which the facility is to be located for review and comments. The local authorities are requested to comment on the relationship of the lift station to its local comprehensive plan and/or utility plans for the community as it affects water quality. 2 2. The Garfield County Comprehensive Plan 2030 as amended contains goals and policies in Section 7 — Water and Sewer Services relevant to the request. Key elements from Section 7 that support the Application and a finding of consistency with the plan are provided in the following excerpts: Section 7— Vision: High water quality has been preserved and enhanced through stringent regulation of waste water treatment and disposal as well as regulation of detrimental surface uses. EXCERPT FROM COMPREHENSIVE PLAN (Future Land Use Map) LIFT STATION SITE Dark Brown = Residential High (H) Medium Brown = Residential Medium High (MH) Red Band = Urban Area of Influence Grey = Urban Growth Area Yellow = Residential Medium (M) Section 7 — Goals: 1. Ensure the provision of legal, adequate, dependable, cost—effective and environmentally sound sewer and water service for new development. 3 Section 7 - Policies: 1. Development located adjacent to municipalities or sanitation districts with available capacity in their central water/sewer systems will be encouraged to tie into these systems. 2. County will strongly discourage the proliferation of private central water/sewer systems.... 5. Higher density development .... should be located in areas where central sewage treatment facilities are either currently available, or feasible in the future. The location of the lift station is designated on the Comprehensive Plan Future Land Use Map as High Density Residential (H) with 1/3 acre to 2 acre lot sizes. It is also located within the Glenwood Springs Area of Influence. These designations are consistent with the Application and the proposal to connect to an existing regional waste water treatment facility. III. REFERRAL COMMENTS Based on the focused review criteria the Application was only referred to the Garfield County Environmental Health Manager who provided referral comments (see attached). The comments address a number of operational topics and indicate that the replacement is "...appropriate for increasing the protection of the public's health in this area of Garfield County". CDPHE oversight of operational issues including reclamation of the existing facilities needs to be maintained. IV. RECOMMENDATION Formalize a motion acting as both the Board of County Commissioners and the Garfield County Board of Health recommending to the CDPHE approval of the Sunlight View Lift Station and authorizing the Chairman to sign the CDPHE Review Agencies Recommendation form. 4 195 W. 149' Street Rifle, CO 81650 (970) 625-5200 Garfield County Public Health Garfield County Community Development 108 8th Street Glenwood Springs, CO 81601 Attn: Glenn Hartmann 2014 Blake Avenue Glenwood Springs, CO 81601 (970) 945-6614 June 29, 2015 Mr. Hartmann, Garfield County Public Health comments for the Sunlight View Water and Wastewater Company are as follows: Tha 1. Water Supply Protection of surrounding water supplies is critical when lift station pumps fail or system discharges due to other failure. Tank sizing for extra storage will give adequate time for repairs to be explored and made to correct failure before the system discharges wastewater to the surface. The existing effluent ponds could be used for extra capacity of storage of discharged wastewater if system fails, to limit the chance that discharging wastewater could impact any water supplies. 2. Wastewater Treatment Garfield County Public Health is pleased to see this project moving forward. The connection of these wastewater lines to the sanitary sewer and elimination of the package wastewater treatment plant is appropriate for increasing the protection of the public's health in this area of Garfield County. 3. Solid Waste Disposal The plan calls for the elimination of the existing ponds. There needs to be adequate oversight of this process to ensure that the existing wastewater in the ponds is appropriately disposed of, as well as any bio solids and remaining sludge. 4. System User Education The users of this wastewater treatment system need to be educated on fats, oils, and grease (FOG) entering this system and possible damages to the system, as well as not putting any cloth rags and items like diapers into the sewer system to help prevent pump and system failures and possible discharge of wastewater. S; shua Williams nvironmental Health Manager Garfield County Public Health 195 W. 14th Street Rifle, CO 81650 (970) 665-6380 Garfield County Public Health Department — working to promote health and prevent disease