Loading...
HomeMy WebLinkAbout1.00 General Application Materials_PartCI:\2011\2011-350 Oak Meadows\008-Oak Meadows Phase 3 Development\Correspondence\Can Will Serve - L 20211029 Gary Johnson.doc October 29, 2021 Via E-mail: gary@gmjcon.com Gary Johnson 320 Big Pinion Drive Basalt, CO 81621 RE: Oak Meadows Phase 3 – Oak Meadows Service Company Commitment to Serve Dear Gary: SGM is consulting engineer for the Oak Meadows Service Company (OMSCO). OMSCO received your request for a commitment to serve a proposed residential development known as the Oak Meadows Phase 3 with water and sanitary sewer services. The subject property is commonly known as Oak Meadows Ranch, filing 4B, Phase III which is located within the OMSCO's service area off South Oak Way within the existing Oak Meadows Subdivision. The current development proposal is for 25 single family residences with 3 auxiliary dwelling units (ADUs). The property was previously approved for 25 single family residences with a will serve letter dated 2007. SGM has reviewed the Oak Meadows wastewater treatment facility (WWTF) performance reports for the last several years and believes there is capacity for 25 single family residences but nothing more. Oak Meadows has lower than industry standards wastewater flows per residence which can change over time with the degradation of the sewer collection system and could increase with inflow and infiltration (I&I). SGM’s analysis of the existing plant and current flows predict that with the full buildout of 28 EQRs (25 single family residences and 3 ADUs) it could potentially exceed the allowable capacity of the WWTF or 95% of capacity and require OMSCO to expand the WWTF. OMSCO’s legal water supply, i.e., OMSCO’s legal entitlement to divert and use water within its service area, which includes Oak Meadows Phase 3, has been evaluated by OMSCO’s water attorneys, Beattie, Houpt & Jarvis, LLP. Their review confirms that water is available only to serve 25 single family units within Phase 3. Water service to 3 ADUs in addition to the 25 single family dwellings was not contemplated under the augmentation plan approved by the District Court in and for Water Division No. 5 in Case No. 92CW350. Four Mile Creek is over- appropriated and has become more strictly administered since that decree was entered. The engineering criteria used to establish water demands and consumption for that plan, which in turn established OMSCO’s augmentation requirements, were aggressive and leave no room for arguing that actual consumptive use is less than the estimated values used in the augmentation plan. OMSCO’s supply of augmentation water stored in Martin Reservoirs is fully committed to the replacement of out-of-priority depletions contemplated by the plan approved in Case No. 92CW350 and, again, leaves no room for additional depletions associated with the 3 ADUs. www.sgm-inc.com GLENWOOD SPRINGS 118 West Sixth St, Suite 200 | Glenwood Springs, CO 81601 | 970.945.1004 www.sgm-inc.com GLENWOOD SPRINGS 118 West Sixth St, Suite 200 | Glenwood Springs, CO 81601 | 970.945.1004 I:\2011\2011-350 Oak Meadows\008-Oak Meadows Phase 3 Development\Correspondence\Can Will Serve - L 20211029 Gary Johnson.doc In summary, OMSCO will serve 25 single family residences for the Oak Meadows Phase 3 development with the following conditions: 1. The Applicant shall enter into a Line Extension Agreement with OMSCO regarding the requirements for extending OMSCO water and sewer infrastructure to the property. 2. OMSCO’s 1041 Permit with Garfield County may have to be amended for the development. The Applicant will be responsible to obtain an amendment to OMSCO’s 1041 Permit for this project if needed, which shall be subject to OMSCO’s prior review and approval. 3. The Applicant shall dedicate or convey to OMSCO all easements necessary for the provision of OMSCO services to the development, which easements shall be free and clear of all liens and encumbrances. 4. The Applicant shall prepare and submit engineering designs for the construction and installation of OMSCO water and sewer infrastructure necessary to serve the development, including but not limited to new water and sewer mains, connections to existing OMSCO infrastructure, curb stops at each water service line connection and other infrastructure, which shall be subject to the review and approval of the OMSCO's engineer prior to the commencement of construction. All such infrastructure shall be constructed in accordance with the approved plans and specifications and shall be inspected by OMSCO’s engineer during construction prior to acceptance by OMSCO. Following acceptance by OMSCO, Applicant shall convey such infrastructure to OMSCO. (Individual water and sewer service lines will be owned by the individual lot owners). 5. Water meters of the type approved by OMSCO shall be installed on each service line as provided in OMSCO’s rules and regulations. 6. The Applicant shall reimburse OMSCO for all fees and costs incurred by OMSCO regarding this project, including but not limited to legal and engineering fees and costs. On behalf of OMSCO, thank you for the opportunity to review and provide comments regarding development of the Oak Meadows Phase 3. Sincerely, SGM Chris Lehrman, PE www.sgm-inc.com