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HomeMy WebLinkAbout2.0 Staff Report BOCC 09.12.16Referral to the BOCC and BOH - September 12,2016 Site Approval - Wastewater Lift Station at Eastbank File No. SD- 08-16-8481 Exhibit Letter {Numerical} ' Exhibit Description A Garfield Countv Comprehensive Plan of 2030 B Aoolication c Staff Reoort D Referra! Comments from Garfield Countv Environmental Health E REQUEST APPLICANT PROPERW OWNER ENGINEERS LOCATION Site Approval BOCC & BOH SePtember PROJECT INFORMATION AND STAFF COMMENTS Referral to the County regarding Site for Construction of a new Wastewater Lift Station Roaring Fork Water and Sanitation District Eastbank, LLC Louis Meyer, P.E., SGM Engineering, lnc CR 154 proximate to the RE-1 Pre-K to 8h Grade School currently under construction GENERAL PROJECT DESCRIPTION The Liftstation SiteApplication has been referred to the Board of CountyCommissionerc and the Board of Health 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 proposed lift station will exceed the threshold of 2,000 gallons per day review by the County therefore permitting by CDPHE is required. The lift station is proposed to be located on a 16.983-acre parcel owned by Eastbank, LLC who has been working with the Roaring Fork Water and Sanitation District (RFWSD) regarding easements and other agreements for placement of this infrastructure. The site is adjacent to the Roaring Fork River. The Eastbank Wastewater Lift Station is designed for a service population of 13S-acres, including the 3S-acre RE-1 School District site as well as ten (10) adjacent parcels. This will include the RE-1 School District property where two schools are planned, consisting of 54 EQR's with additional Schoo! District uses proposed at the site will yield a total of 80 EQR's for that property at buildout. Other properties in the area are currently zoned Rural and for planning purposes Iow density residential was used to estimate a contribution of 285 EQR's. This would result in a total of 365 EQR's for the expanded service area. The flow from the lift station will be received and treated at the Roaring Fork Wastewater Treatment Facility which is currently permitted for 0.107 MGD and master planned for 0.321 MGD. The projected flows from the expanded service area have resulted in RFWSD commencing the planning and permitting process to expand the treatment facility. llPage Site Approval Eastbank Lift Station Figurel-SiteLocotion The lift station will be operated by Environmental Process Control (EPC) under contract by RFWSD. EPC currently operates the existing RFWSD lift stations and the Water and Wastewater Treatment Faci I ities. The lift station will be under 24-hour surveillance by SCADA system that can convey multiple alarm regarding high water and other various system fault alarms. Redundant measurements and controls will be provided including an on-site backup generator sufficiently sized to power the pumping equipment, instrumentation and controls. The generator will be natural gas. Sufficient emergency storage will be provided to facilitate a 4S-minute allowance for response and remedial action without risk of overflow. II. REVIEW AND STAFF ANALYSIS 1. The CDPHE and State regulations call for Lift Station Applications 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. The Board of County Commissioners will also convene as the Board of Health for the purpose of reviewing the referral. 2lPage Site Approval Eastbank Lift Station 3. 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: Secfion 7 - Vision: High water quality has been preserued and enhanced through stringent regulation ol waste water treatment and disposa/ as well as regulation of detrimental surface uses. Figure 2 - Excerpt from Future Lond Use Map Secfion 7 - Goals: 1. Ensure the provision of legal, adequate, dependable, cost-effective and environmentally sound sewer and water seruice for new development. --1 Dark Brown = Residential High (H) Medium Brown = Residential Medium Hieh (MH) Grey = Urban Growth Area Yellow = Residential Medium (M) 3lPage Site Approval Eastbank Lift Station Secfion 7 - Policies: 1. Development located adjacent to municipalities or sanitation disfricfs with available capacity in their central water/sewer sysfems will be encouraged to tie into these sysfems. 2. County will strongly discourage the proliferation of private central water/sewer sysfems.... 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 Urban Growth Area. This designation is consistent with the Application and the proposal to connect to an existing regional waste water treatment facility. III. REFERRAL COMMENTS The Application was referred to Garfield County Environmental Health Department. Morgan Hillfrom Environmental Health noted that their comments, Exhibit D, are limited as the applicant and their engineer have demonstrated that they wil! address any concerns from an environmental health perspective. Of importance are: - The ability of the system to handle the capacity of the new residential and commercialfacilities at peak use.- Backup power generation to keep the pumps running in the event of a power failure.- Adequate response time of a septic service to pump out the lift station, as wel! as a large enough vault space to store water before the service arrives. Hill also noted that Public Health recommends that a spill response plan is in place in the event of failure, which can happen even with the best practices in place. 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 Eastbank Lift Station and authorizing the Chairman to sign the CDPHE Review Agencies Recommendation form as the Board of County Gommissioners and the Board of Health. 4lPage EXHIBIT D Public Health 195 W. 14s Street Rifle, CO 81650 (970) 625-5200 Garfield County Community Development 108 8m Street Glenwood Springs, CO 81601 Attn: Kathy Eastley September 6, 2016 Hello Kathy, 2014 Blake Avenue Glenwood Springs, CO 816()1 (970) 94s-6614 My comments for the Lift Station for the Roaring Fork Water and Sanitation District Eastbank Lift Station are limited as the applicant and their engineer have demonstrated that they will address any concems from an environmental health perspective. Of importance are:- The ability of the system to handle the capacity of new residential and commercial facilities at peak use.- Backup power generation to keep the pumps running in the event of a power failure.- Adequate response time of a septic service to pump out the lift station, as well as a large enough vault space to store water before the service arrives. We also recommend that a spill response plan is in place in the event of failure, which can happen even with the best practices in place. The operator of the lift station should have the contact information for the City of Glenwood Springs water treatment plant, which intakes off of the Roaring Fork River. The City has developed a Source Water Protection Plan for this water source and the site of the lift station is within their source water protection area. Please contact Jerry Wade, water treatment plant operator, at (970) 618-8209 in the event of a spill. The City's wastewater treatment plant has also developed a spill response plan which l've attached for reference. Please feelfree to contact me with questions. Thank you,/m fll,ln {iln?qfr" tfi- 'H'ilru Morgan Hill Environmental Health Specialist I I I Garfield County Public Health 195 W. 14s Street Rifle, CO 81650 (e70) 665-6383 Garfield County Public Health Department - working to promote health and prevent disease SOP for Sanitarv Sewer Overflows (SSOsl CiW of Glenwood Springs Wastewater Treatment & Collection Departments updated 11-17-13 1) Upon notification of SSO, determine cause and take immediate action to cease overflow. Overflows are usually caused by sewer pipes becoming plugged or by lift station pumps failing. Examples of ways to stop overflows include: A) Bypass the problem by opening and/or closing valves B) lf a manhole is overflowing, call the collection's crew to come and vac it out at970-379-L974 C) Jetting may be necessary to unplug a line, call collections for this D) Running pumps and standby systems in manual may be necessary if controls fail E)There are mobile backup sewage pumps (aka the Honda pump) at 13,000 that can be used if normal lift pumps fail 2) lmmediately notify all downstream users: (tell them the time of occurrence and approximate gallons spilled) o Boaters - contact the County Sheriff's Office/ Garfield County Health Department. They may decide to close the river for recreation. Garfield County Health Department: 970-625-5200. Notify Morgan Hill at 970-555-6383. The Sherriffs Office should be notified by dialing dispatch (s11) o New Castle-Emergency phone line: 970-989-0348 o Silt-Jack Castle: 970-989-0041 o Rifle-RobertBurns:970-665-6590 3) Take upstream and downstream samples 100 yards each way from spill. Run chemical oxygen demand, E. coll and total suspended solids on the samples. 4) Clean and sanitize the entire effected area - close area to human and animal contact. There is a spill kit located in the WWTF garage containing "Caution DO NOT ENTER" tape and construction cones. Use these items to close the area. The spill kit also contains a 2 gallon sprayer. Use this to spray/sanitize the entire effected area with a 5% bleach solution (314 cup bleach to 1 gallon of water). Let solution have sufficient contact time, at least t hour, before removing cones and tape and opening back up area. 5) Notify the CDPHE within 24 hours by calling the 24 hr incident reporting line at 1-800-877-5186. The CDPHE will need to know the location, volume and type of water for the spill. Be sure to have a good estimate of quantiW before tellins them the amount. 6) Within 5 days, submit a written report to the CDPHE (see attached)