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Home My WebLink About3006 Frying Pan Rd - 246710200004Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970) 328-8730 Fax: (970) 328-7185 Permit Permit No. OWTS-022201-2021 Permit Type: OWTS Permit Work Classification: New Permit Status: Active Issue Date: 11/24/2021 Expires: 12/11/2023 On-Site Wastewater Treatement System Project Address Parcel Number 3006 FRYING PAN RD, BASALT AREA,246710200004 Owner Information Address Frying Pan Rendezvous, Llc Phone: Cell: Email: genshaft@wcrlegal.com Inspections: For Inspections Call: (970) 328-8755 and call the Design Engineer Engineer Phone Email Roaring Fork Engineering, Richard Goulding richardg@rfeng.biz Contractor License Number Phone Email Savage Excavation, LLC office@savagexco.com(970) 379-5421OWTSPL-000296-20 23 Permitted Construction / Details: Install the OWTS exactly as depicted in the Roaring Fork Engineering design stamped, signed, and dated November 10, 2021 by Richard B. Goulding, PE. The system is designed to serve a three bedroom home and a bunk room, for a design total of 5 bedrooms. The OWTS consists of a 2,000 gallon two-compartment septic tank with an Orenco PF3005 high head effluent pump installed in the second compartment with floats set to dose approximately 138 gallons of effluent to an automatic distribution valve (ADV) set at the high point of the system and made accessible at grade. The ADV will alternated dosed effluent between three over excavated beds each consisting of four rows of 14 Infiltrator Quick4 Plus set atop two feet of secondary sand, for a total of 168 chambers, equivalent to 2,000 square feet of soil treatment area (STA). The distribution laterals in the STA consist of 1.5 PVC pipe, with 1/8" orifices drilled every 4' of the entire length until terminating at the flush valve assembly. Stake and maintain all setbacks for installation and inspection. Install inspection ports on both ends of each trench. NOTE, not in design but required: The effluent pipe must be encased for 5 feet on each side of the crossing with the water line. A length of pipe with a minimum Schedule 40 rating of sufficient diameter to easily slide over and completely encase the conveyance must be used. Rigid end caps of at least Schedule 40 rating [ASTM Standard D 3034-16 (2016 version)] must be glued or secured in a watertight fashion to the ends of the encasement pipe. A hole of sufficient size to accommodate the pipe must be drilled in the lowest section of the rigid cap so that the conveyance pipe rests on the bottom of the encasement pipe. The area in which the pipe passes through the end caps must be sealed with an approved underground sealant compatible with the piping used. NOTE: Gradation of the sand media use must be completed within one month prior to the installation and confirmed with the design engineer. If the sand does not conform to secondary or preferred sand media requirements, it cannot be used for the sand treatment media. Contact Eagle County Environmental Health and the design engineer well in advance of requesting inspections prior to backfilling any component of the OWTS. The design engineer is responsible for conducting all inspections necessary to certify the installation and assure the functionality of the system. System certification, along with photos and a record drawing is required to be submitted to and approved by Eagle County Environmental Health prior to the use of the system. Wednesday, October 11, 2023 1 THIS PERIMT EXPIRES BY TIME LIMITATION AND BECOMES NULL AND VOID IF THE WORK AUTHORIZED BY THE PERMIT IS NOT COMMENCED WITHIN 120 DAYS OF ISSUANCE, OR BEFORE THE EXPIRATION OF AN ASSOCIATED BUILDING PERMIT Issued by: Environmental Health Department, Eagle County, CO Claire Lewandowski Date November 24, 2021 CONDITIONS 1. 2.ALL INSTALLATIONS MUST COMPLY WITH ALL REQUIREMENTS OF THE EAGLE COUNTY PUBLIC HEALTH AGENCY ON-SITE WASTEWATER TREATMENT SYSTEM REGULATIONS ADOPTED PURSUANT TO AUTHORITY GRANTED IN CR.S. 25-10-101, et seq., AS AMENDED 3.THIS PERMIT IS VALID ONLY FOR PERFORMING WORK ON OWTS ASSOCIATED WITH STRUCTURES WHICH HAVE FULLY COMPLIED WITH COUNTY ZONING AND BUILDING REQUIREMENTS CONNECTION TO, OR USE WITH, ANY DWELLING OR STRUCTURE NOT APPROVED BY THE ZONING AND BUILDING DEPARTMENTS SHALL AUTOMATICALLY BE A VIOLATION OF A REQUIREMENT OF THE PERMIT AND WILL RESULT IN BOTH LEGAL ACTION AND REVOCATION OF THE PERMIT 4.1.6(A)(1) EAGLE COUNTY PUBLIC HEALTH AGENCY ON-SITE WASTEWATER TREATMENT SYSTEM REGULATIONS REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN ON-SITE WASTEWATER TREATMENT SYSTEM TO BE LICENSED Wednesday, October 11, 2023 2 Inspection Result Eagle County, Colorado P.O. Box 179 500 Broadway Eagle, CO Phone: (970) 328-8730 Fax: (970) 328-7185 IVR Phone: 1-866-701-3307 Inspection Number: BASALT AREA - 3006 FRYING PAN - 516812 Permit Number: OWTS-022201-2021 Inspection Date: 08/12/2022 Inspector: Permit Type: OWTS Permit Inspection Type: OWTS Final Inspection Work Classification: NewOwner:Frying Pan Rendezvous, Llc Job Address:3006 FRYING PAN RD IVR Pin Number:193928 BASALT AREA, CO Project:<NONE> Parcel Number:246710200004 Contractor:Phone: / Cell: Inspection Status: Approved Inspection Notes Inspector Comments Added Item: Septic Tank Inspected on 10/17/23- Meets requirements. Floats and alarms were tested and working. Handles to float tree and effluent biofilter must be extended for east reach within the risers. Photos requested. Added Item: Record Drawing Received 11/1/2023. Added Item: Record Photos Received 11/1/2023. Added Item: Final Certification Letter Received 11/1/2023. Added Item: Pressure Distribution Observed the hydraulic loading test on 10/25/23- ADV and all lines of each STA were observed pressurized and functioning as designed. ADV was installed at the high point of the system and drain back was observed. Added Item: General Plan Observed in conformance with General Plan. Added Item: Soil Treatment Area (STA) Thursday, November 30, 2023 For more information visit: http://www.eaglecounty.us Page 1 of 2 Inspected 8/12/2022 - 4 rows of 13 had been installed instead of 14. Correction required. 10/17/23 - Corrections verified. Added Item: Identification of Systems Contractor Savage Excavation was the licensed installer. Thursday, November 30, 2023 For more information visit: http://www.eaglecounty.us Page 2 of 2 Onsite Wastewater System Certification To: Eagle County Environmental Health Department From: Tyler Stevens P.E. Re: Coffman’s Corner 3006 Frying Pan Rd. Eagle County, CO ‐ Final Septic Approval Date: October 31, 2023 The Onsite Wastewater Treatment System (OWTS) at 3006 Frying Pan Rd. was constructed and installed throughout 2021, 2022 and 2023 in general accordance with the engineered design that was submitted to and approved by the Eagle County Environmental Health Department. The equipment installation was done by Valley Precast and a final inspection was conducted by Tyler Stevens, P.E., of Roaring Fork Engineering on October 31, 2023. The lids of the septic tank were removed and the sanitary tees and dosing pumps were observed and inspected. All proposed pumps, valves, fittings and equipment for the system were present. Each row of chambers was confirmed to have inspection ports and blow off risers. Below are some photos taken during the site visit. The contractor has been in correspondence with the county and has been providing the requested construction documentation and photos. Large equipment and stockpiles were kept off the field for the duration of construction. During the final inspection the pumps were cycled, the ADV was observed operating correctly and the blowoff valves at the end of the field were opened to ensure flows adequately pressurized the field. Everything operated as intended. Please call with any questions: 970‐379‐2687 Sincerely, Tyler Stevens, P.E. Onsite Wastewater Treatment System Report COFFMAN’S CORNER 3006 FRYING PAN RD. EAGLE COUNTY, CO November 10, 2021 Prepared by Roaring Fork Engineering 592 Highway 133 Carbondale, CO 8162 1 Table of Contents Table of Contents .......................................................................................................................................... 1 1.0 General .............................................................................................................................................. 2 2.0 Waste Water Strength and Flows ...................................................................................................... 2 3.0 Minimum Distances Between Components of the Onsite Wastewater Treatment System and Physical Features .......................................................................................................................................... 3 4.0 Septic Tank Sizing ............................................................................................................................ 4 5.0 Soil Conditions .................................................................................................................................. 5 6.0 Soil Treatment Area Sizing ............................................................................................................... 8 7.0 Distribution and Dosing .................................................................................................................... 9 7.1 Head Loss ...................................................................................................................................... 9 7.2 Pump Selection ............................................................................................................................. 9 8.0 Maintenance ...................................................................................................................................... 9 Appendix A: Completed OWTS Permit Application ................................................................................ 1 Appendix B: Geotechnical Report ............................................................................................................ 2 Appendix C: Roaring Fork Engineering Soil Logs ................................................................................... 3 Appendix D: Design Flows and STA Sizing ............................................................................................ 4 Appendix E: Dosing Volumes .................................................................................................................. 5 Appendix F: Pump Curves ........................................................................................................................ 6 Appendix G: Product Information. ........................................................................................................... 7 Appendix H: Drawings ............................................................................................................................. 8 2 1.0 General The property address is 3006 Frying Pan Rd. Basalt, Colorado. This property is also referred to as Coffman’s Corner. The property is on the Frying Pan River about three miles east of downtown Basalt. The parcel number is 2467-102-00-004. The property is 5 acres and is located in Eagle County Figure 1 – Vicinity Map The property is surrounded by Basalt State Wildlife area and Colorado Parks and Wildlife land. The Frying Pan Road runs through the north of the property while the frying pan river flows to the south of the property. There is a 75-foot highwater set back that also exists on the property. The proposed development will consist of a new custom home with a separate garage and various connected cabins. All the dwellings will connect to the same Onsite Wastewater Treatment System (OWTS). The septic system will be designed in accordance with the Colorado Department of Public Health and Environment’s (CDPHE) Regulation 43 and Eagle County regulations. A Colorado Department of Public Health and Environment (CDPHE) permit is not required for this size of system. 2.0 Waste Water Strength and Flows The waste water design flows were calculated using section 43.6 of the Eagle County On-site Wastewater Treatment System Regulations. Table 6-1, Single-Family Residential Design Flows, was used to determine the amount of people per bedroom and the design flows in gallons per day. The design flow used per person is 75 gallons per day. For homes with more than three bedrooms the assumed number of persons shall be two people per bedroom for the first three bedrooms, plus one additional person for each bedroom more than the first three bedrooms. 3 Figure 2 - Table 6-1 (Eagle County OWTS Regulations) The proposed home has a three bed rooms and a bunk room. Counting the bunk room as two bedrooms this bring the total number of bedrooms to 5. According to table 6-1 this brings the Design Flow to 600 gal/day. A septic tank is going to be implemented for the single-family home so the effluent strength is considered to be Treatment Level 1 (TL1). 3.0 Minimum Distances Between Components of the Onsite Wastewater Treatment System and Physical Features Section 43.7 was used to determine the minimum distances between components of the OWTS and the proposed well, river, water storage tanks and water lines. Setbacks are shown on the site OWTS plan and all setback requirements are met. Below is that 7-1 showing the required setbacks. 4 Figure 3 - TABLE 7-1 (Eagle County OWTS Regulations) 4.0 Septic Tank Sizing Septic tank sizing was calculated using section 43.9 of the Eagle County On-site Wastewater Treatment System Regulations. Septic tanks will be used to bring the effluent to Treatment Level 1 (TL1). Table 9-1 of the Eagle County Public Health Agency’s Onsite Water Treatment System regulations shows the required tank sizing for new residential installations. Figure 4 - Table 9-1 (Eagle County OWTS Regulations) To provide 48 hours of retention time this requires the minimum tank size to be 2,000 gallons. A two- compartment precast tank is specified in the design with the dosing pump housed in the second chamber. The first compartment of this tank is 1,500 while this second comportment is 500 gallons. This satisfies the requirement that the first compartment must hold no less than one-half of the required effective volume. 5 5.0 Soil Conditions Two soil profile pits were excavated to approximately a depth of nine feet in the vicinity of the proposed septic field on May 4th, 2021 and observed by Roaring Fork Engineering (RFE). Visual and tactile observations were performed on the soil. The profile pits included approximately 6-12 inches of organics/topsoil overlaying medium dense to dense silty sand and gravel soils. No groundwater was observed within the soil profile pits. No limiting layers were encounter. Soil logs can be found within the appendix. Below are photos of the two pits. Figure 5 - Profile Pit 1 Figure 6 - Profile Pit 2 Soil samples of the native material were taken from both soil profile pits, so gradation testing could be performed. Below is a photo of the sieve sample. A 3/4"-inch sieve was used to separate the large rock and a finer No. 10 Sieve was used to separate the fines. It appears that over 35% of the was >2mm putting the soil in the Type R category according to table 10-1A. Figure 7 -Soil Pit 1 Sieve Analysis Figure 8 - Soil Pit 2 Sieve Analysis 6 The soil passing the No. 10 sieve was tested according to the USDA NRCS Guide to Texture by Feel. The results showed the soil was a Sandy Clay Loam (Type 3A Soils) since it remained in a ball when squeezed, formed a 1-2” ribbon while feeling gritty. Figure 9 - Profile Pit 1 Ribbon Test Figure 10 - Profile Pit 2 Ribbon Test 7 Given this soil type and an effluent treatment Level of 1, Table 10-1 of the Eagle County Public Health Agency On-Site Wastewater Treatment System Regulations indicates the LTAR (Long Term Acceptanceate) shall be 0.30 gallons per day per square foot. Figure 11 - Table 10-1 (Eagle County OWTS Regulations) 8 Figure 12 - Table 10-1a (Eagle County OWTS Regulations). Using tables 10-1 and 10-1A for a Treatment Level 1 effluent, Type R and Type 3A soil with an LTAR of 0.30 a 2-foot layer of sand is needed below the Soil Treatment Area. This will be specified in the design along with the sand gradation specification. A separate geotechnical report was produced on June 4, 2021 by Kumar and Associates. The report is included in the Appendix. Four separate pits were dug. Each pit log shows there is about 1-4 feet of top soil over laying sand and gravels or cobbles. In the area of the proposed soil treatment area the soils were similar. 6.0 Soil Treatment Area Sizing Using the design flow of 600 gallons per day and the LTAR of 0.30 gallons per day per square foot, it was determined that the minimum STA is 2,000 square feet for bed configurations. No sizing adjustments are permitted as the soil treatment area is in Type R soils. The field will still be pressure dosed and chambers shall be utilized. 168 Quick 4 Plus infiltrators will be arranged in three beds. Each bed will have 4 rows with 44 infiltrators each. Each bed does not exceed the maximum width of 12 feet and will be spaced 6 feet from the adjacent beds. 9 7.0 Distribution and Dosing The soil treatment area will be pressure dosed. The second chamber of the second 1,500-gallon tank will house the Orenco pump and float tree. The pump will discharge into a pressurized 1.5-inch PVC transmission line up to the ADV (Alternating Distribution Valve). From the ADV two separate distribution 1.5-inch PVC pipes will convey effluent to the 1.5-inch PVC manifolds and laterals. The laterals run the entire length of the chambers and are also 1.5-inch PVC pipe that are suspended from the top of the chambers. The laterals shall have one eighth of an inch (1/8”) orifice spaced every four feet (4’). The transmission pipe running up to the ADV is sloped back toward the tank so the effluent will drain back into the pump basin when the pump shuts off. This is done to prevent freezing and eliminate stagnant fluid sitting in the line. A dosing volume was determined by using the industry standard of five to seven times the lateral piping volumes plus any drain back for a total of 138 gallons per dose. The elevations of the floats in the dosing chamber shall be set 14 inches apart to meet this dosing volume. The pump vault will house the Orenco pump and float tree. See the appendix for dosing calculations and OWTS drawings. 7.1 Head Loss The Orenco pump selection software was used to determine the total head loss for the system. Using the distribution pipe material, size and length, orifice size and spacing, bends, the max elevation lift, the manifold and the lateral piping configurations, a system curve was created. From this, the minimum pumping requirements were determined. A system curve is provided in the appendix. 7.2 Pump Selection The pump selected for the system is the Orenco PF3005 high head effluent pump. A pump curve, along with product information, can be found within the appendix 8.0 Maintenance The Owner will follow the operation and maintenance required in Section 43.14 of the Eagle County On- site Wastewater Treatment System Regulations. Below is a maintenance schedule for the OWTS. Maintenance and Cleaning Frequency Type of Component Inspection/Maintenance Cleaned or Pumped Septic Tanks Every 2 Years Every 2 Years, or As Needed Absorption Areas Every 6 Months N.A. Dosing or Pumping Chambers Every 6 Months Every 4 Years 10 Responsibility: The owner must be responsible for maintenance of an OWTS unless the responsibility has been contractually assigned to a tenant or a third party or a public, quasi-public, or political subdivision. Referencing section 43.16.D.4 of the Pitkin County Onsite Wastewater Treatment Regulations, the Owner’s responsibilities for operation and maintenance of the system include: 1. Ensure OWTS is operating, maintained and performing according to the required standards for the designated treatment level; 2. Maintain an active service contract with a maintenance provider at all times; and 3. Each time his/her current contract with a maintenance provider is renewed or replaced, send a copy to PCPH within 30 days of signing. Additional information about OWTS maintenance and operation can be found in section 43.16. of the Pitkin County Onsite Wastewater Treatment Regulations. Appendix A: Completed OWTS Permit Application *************************************************************************** APPLICATION FOR ON-SITE WASTEWATER TREATMENT SYSTEM (OWTS) PERMIT INCOMPLETE APPLICATIONS MAY NOT BE ACCEPTED (SITE PLAN MUST BE INCLUDED) FEE SCHEDULE APPLICATION FEE FOR NEW OWTS OR MAJOR REPAIRS $800.00 MINOR REPAIR FEE $400.00 Fee includes the design review, permitting and maintenance of OWTS records Make all checks payable to: Eagle County Treasurer Property Owner: _______________________________________Phone: ________________________ Owner Mailing Address: ________________________________ email: _________________________ Professional Engineer: __________________________________ Phone: ________________________ Applicant / Contact Person: ______________________________Phone: ________________________ Licensed Systems Contractor Name / Company: ___________________________________________ Contractor Mailing Address: _________________________________ Contractor License #:_______ Contractor Phone Number: ________________________ email: ______________________________ OWTS Permit Application is for: ____ New Installation ____ Alteration ____ Repair Tax Parcel Number: _________________________________ Lot Size: ________________________ Assessor’s Link: www.eaglecounty.us/patie/ Physical Address: _____________________________________________________________________ Legal Description: ____________________________________________________________________ Building Type: _____ Residential / Single Family _____ Residential / Multi Family _____ Commercial / Industrial Number of Bedrooms: ______ Number of Bedrooms: ______ Type of Use: _______________ *As of 06/27/2014, all systems require design by a Registered Professional Engineer. Type of Water Supply: ____ Private Well ____ Spring ____ Surface ____ Public If Public, Name of Supplier: ____________________________________________________________ Applicant Signature: ______________________________________Date:_______________________ **************************************************************************** Office Use Only: OWTS PERMIT # __________________ BUILDING PERMIT # ____________________ Amount Paid: ___________ Receipt #: ___________ Check #: ___________ Date: ______________ DEPARTMENT OF ENVIRONMENTAL HEALTH (970) 328-8755 FAX: (970) 328-8788 TOLL FREE: 800-225-6136 www.eaglecounty.us P.O. Box 179 500 Broadway Eagle, CO 81631 environment@eaglecounty.us Appendix B: Geotechnical Report 5020 County Road 154 Glenwood Springs, CO 81601 phone: (970) 945-7988 fax: (970) 945-8454 email: kaglenwood@kumarusa.com www.kumarusa.com Office Locations: Denver (HQ), Parker, Colorado Springs, Fort Collins, Glenwood Springs, and Summit County, Colorado June 4, 2021 CCY Architects Attn: Matt Qual P.O. Box 529 Basalt, Colorado 81621 mqual@ccyarchitects.com Project No. 21-7-361 Subject: Subsoil Study for Foundation Design, Proposed Residential Development, 3006 Frying Pan Road, Eagle County, Colorado Dear Matt: As requested, Kumar & Associates, Inc. performed a subsoil study for design of foundations at the subject site. The study was conducted in accordance with our agreement for geotechnical engineering services to CCY Architects dated April 12, 2021. The data obtained and our recommendations based on the proposed construction and subsurface conditions encountered are presented in this report. Proposed Construction: The proposed residential development will include a main cabin, master cabin, guest cabin, detached garage and fishing cabin located on the site as shown on Figure 1. Ground floors are assumed to be a combination of slab-on-grade and structural over crawlspace. Cut depths are expected to range between about 2 to 8 feet. Foundation loadings for this type of construction are assumed to be relatively light and typical of the proposed type of construction. If building conditions or foundation loadings are significantly different from those described above, we should be notified to re-evaluate the recommendations presented in this report. Site Conditions: The subject site was vacant at the time of our field exploration. The ground surface was sloping down to the south at a grade of about 5 to 10 percent. The Frying Pan River flows around the edge of the lot on the south/downhill side. Vegetation consists of grass and scattered fir, cottonwood and old scrub oak trees. The site was previously developed with a small cabin and a driveway. The cabin had been razed prior to our study and the driveway was unmaintained. The unpaved driveway was constructed with minor cut and fill. Subsurface Conditions: The subsurface conditions at the site were evaluated by excavating four exploratory pits at the approximate locations shown on Figure 1. The logs of the pits are presented on Figure 2. The subsoils encountered, below about 1 to 3½ feet of topsoil, consist of - 2 - Kumar & Associates, Inc. ® Project No. 21-7-361 medium dense to dense silty sand and gravel soils down to the maximum explored depth of 10½ feet. Pit 2 encountered primarily sand soils with limited gravel and cobbles. Septic profile pits were excavated on the west side of the lot at the time of our field exploration and exposed similar subsoil conditions. The septic profile pits were logged and sampled by a representative of Roaring Fork Engineering. Results of a gradation analysis performed on a sample of silty sand and gravel (minus 3-inch fraction) obtained from the site are presented on Figure 3. No free water was observed in the pits at the time of excavation and the soils were slightly moist to moist. Foundation Recommendations: Considering the subsoil conditions encountered in the exploratory pits and the nature of the proposed construction, the buildings can be founded with spread footings bearing on the natural soils with a risk of settlement if the bearing soils become wet. Spread footings placed on the undisturbed natural soil designed for an allowable soil bearing pressure of 2,000 psf for support of the proposed residential development. Footings should be a minimum width of 18 inches for continuous walls and 2 feet for columns. Loose disturbed soils and existing fill encountered at the foundation bearing level within the excavation should be removed and the footing bearing level extended down to the undisturbed natural soils. Exterior footings should be provided with adequate cover above their bearing elevations for frost protection. Placement of footings at least 42 inches below the exterior grade is typically used in this area. Continuous foundation walls should be reinforced top and bottom to span local anomalies such as by assuming an unsupported length of at least 12 feet. Foundation walls acting as retaining structures should be designed to resist a lateral earth pressure based on an equivalent fluid unit weight of at least 45 pcf for the on-site subsoils as backfill. Floor Slabs: The natural on-site soils, exclusive of topsoil, are suitable to support lightly to moderately loaded slab-on-grade construction. To reduce the effects of some differential movement, floor slabs should be separated from all bearing walls and columns with expansion joints which allow unrestrained vertical movement. Floor slab control joints should be used to reduce damage due to shrinkage cracking. The requirements for joint spacing and slab reinforcement should be established by the designer based on experience and the intended slab use. A minimum 4-inch layer of free-draining gravel should be placed beneath slabs-on-grade to facilitate drainage. This material should consist of minus 2-inch aggregate with less than 50% passing the No. 4 sieve and less than 2% passing the No. 200 sieve. All fill materials for support of floor slabs should be compacted to at least 95% of maximum standard Proctor density at a moisture content near optimum. Required fill can consist of the on- site soils devoid of vegetation, topsoil and oversized rock. - 3 - Kumar & Associates, Inc. ® Project No. 21-7-361 Underdrain System: Although free water was not encountered during our exploration, it has been our experience in the area that local perched groundwater can develop during times of heavy precipitation or seasonal runoff. Frozen ground during spring runoff can create a perched condition. We recommend below-grade construction, such as retaining walls, deep crawlspace and basement areas (if any), be protected from wetting and hydrostatic pressure buildup by an underdrain system. If installed, the drains should consist of drainpipe placed in the bottom of the wall backfill surrounded above the invert level with free-draining granular material. The drain should be placed at each level of excavation and at least 1 foot below lowest adjacent finish grade and sloped at a minimum 1% to a suitable gravity outlet. Free-draining granular material used in the underdrain system should contain less than 2% passing the No. 200 sieve, less than 50% passing the No. 4 sieve and have a maximum size of 2 inches. The drain gravel backfill should be at least 1½ feet deep. Surface Drainage: The following drainage precautions should be observed during construction and maintained at all times after the residential development has been completed: 1) Inundation of the foundation excavations and underslab areas should be avoided during construction. 2) Exterior backfill should be adjusted to near optimum moisture and compacted to at least 95% of the maximum standard Proctor density in pavement and slab areas and to at least 90% of the maximum standard Proctor density in landscape areas. Free-draining wall backfill should be covered with filter fabric and capped with about 2 feet of the on-site, finer graded soils to reduce surface water infiltration. 3) The ground surface surrounding the exterior of the building should be sloped to drain away from the foundation in all directions. We recommend a minimum slope of 12 inches in the first 10 feet in unpaved areas and a minimum slope of 3 inches in the first 10 feet in pavement and walkway areas. A swale may be needed uphill of the proposed buildings to direct surface runoff around the structures. 4) Roof downspouts and drains should discharge well beyond the limits of all backfill. Limitations: This study has been conducted in accordance with generally accepted geotechnical engineering principles and practices in this area at this time. We make no warranty either express or implied. The conclusions and recommendations submitted in this report are based Kumar & Associates Kumar & Associates Kumar & Associates TABLE 1 SUMMARY OF LABORATORY TEST RESULTS Project No. 21-7-361 SAMPLE LOCATION NATURAL MOISTURE CONTENT NATURAL DRY DENSITY GRADATION PERCENT PASSING NO. 200 SIEVE ATTERBERG LIMITS UNCONFINED COMPRESSIVE STRENGTH SOIL TYPE PIT DEPTH GRAVEL SAND LIQUID LIMIT PLASTIC INDEX (%) (%) (ft) (%) (pcf) (%) (%) (psf) 1 5 to 7 3.4 43 40 17 Silty Sand and Gravel 2 4 to 4½ 11.1 29 22 3 Silty Sand 4 6½ to 7½ 3.4 43 45 12 Silty Sand and Gravel Appendix C: Roaring Fork Engineering Soil Logs Appendix D: Design Flows and STA Sizing C H A M B E R D I S T R I B U T I O N M E D I A W O R K S H E E T The minimum required number of chambers are based on the wastewater flow, LTAR and method of effluent application entered in TAB 1. To change any of those parameters, such as using pressure dosing instead of siphons just click HERE to return to TAB 1 and make changes ‐ this sheet will automatically recalculate with that info. * NOTE: FOR HLT SYSTEMS ‐ WHICH MUST BE PRESSURE DOSED ‐ NO ADDITIONAL SIZING REDUCTIONS ARE PERMITTED FOR USE OF CHAMBERS PER SECTION 16.1.I FOR HLT EFFLUENT*INSTRUCTIONS: Determine the STA from the tables at left that reflects the STA type and T R E N C H S T A 1600 wastewater TL and select it from the drop down list in the YELLOW box below: B E D S T A 2000 2000 FOR TL1 EFFLUENT T R E N C H S T A 1400 B E D S T A 1680 MINIMUM REQUIRED NUMBER OF UNITS ARE SHOWN IN TABLES BELOW ‐ FOR EQUAL EFFLUENT DISTRIBUTION THE NUMBER OF CHAMBERS IN EACH BED ROW OR TRENCH MUST BE EQUAL, WHICH MAY REQUIRE MORE CHAMBERS THAN SHOWN BELOW. DISTRIBUTION LINES ARE REQUIRED WITHIN THE CHAMBERS. ADS PIPE INC UNITS INFILTRATOR SYSTEMS INC UNITS Arc 18 (18" wide trench)286 Quick 4 Plus Standard 167 Arc 24 (24" wide trench)222 Quick 4 Plus Low Profile 167 Arc 36 143 Quick 4 Plus High Capacity 167 Arc 36 HC 133 RESERVED Arc 36 LP 143 RESERVED RESERVED RESERVED RESERVED RESERVED #rows #infiltrators/row Width of System (ft) Length of System (ft) Length of System + End Caps (ft) Total Infiltrators Excavation Area (ft2) Total Area of System (ft2) 1 167 3 668 671 167 2012 2004 2 84 12 336 339 168 2024 4032 3 56 21 224 227 168 2024 4704 4 42 30 168 171 168 2024 5040 5 34 39 136 139 170 2048 5304 6 28 48 112 115 168 2024 5376 7 24 57 96 99 168 2024 5472 8 21 66 84 87 168 2024 5544 9 19 75 76 79 171 2060 5700 10 17 84 68 71 170 2048 5712 11 16 93 64 67 176 2120 5952 12 14 102 56 59 168 2024 5712 13 13 111 52 55 169 2036 5772 14 12 120 48 51 168 2024 5760 #rows #infiltrators/row Width of System (ft) Length of System (ft) Length of System + End Caps (ft) Total Infiltrators Excavation Area (ft2) 1 167 3 668 671 167 2012 2 84 6 336 339 168 2032 3 56 9 224 227 168 2040 4 42 12 168 171 168 2048 5 34 15 136 139 170 2080 6 28 18 112 115 168 2064 7 24 21 96 99 168 2072 8 21 24 84 87 168 2080 9 19 27 76 79 171 2124 10 17 30 68 71 170 2120 11 16 33 64 67 176 2200 12 14 36 56 59 168 2112 13 13 39 52 55 169 2132 14 12 42 48 51 168 2128 15 12 45 48 51 180 2280 16 11 48 44 47 176 2240 17 10 59 40 43 170 2496 18 10 63 40 43 180 2644 19 9 66 36 39 171 2528 20 9 70 36 39 180 2662 21 8 73 32 35 168 2504 22 8 77 32 35 176 2624 23 8 80 32 35 184 2744 24 7 84 28 31 168 2530 Trench System Bed System B A S I C S T A C A L C U L A T O R Except for Soil Type 0, the LTAR may vary, depending on the Soil Type and the Treatment Level of the effluent. You may adjust the LTAR for Soil Types 1‐5 by choosing different Treatment Levels, but for Soil Type "0" the LTAR will always be "1" regardless of Treatment Level. Remember that HLT systems are always pressure‐dosed, so no additional sizing reductions are given for Manufactured or Chamber distribution media for HLT systems. DISCLAIMER: the OWTS Regulations may limit sizing options based on types of systems, effluent application methods, treatment levels, etc. Not all of the sizing options shown in the calculated tables will apply to every system. These calculations must be verified by the design engineer. Enter Design Flow (gpd) 600 Total Structures Square Footages 6,000 Minimum Tank Size 1200 Number of Persons 8 Select LTAR 0.3 Flow Per Person 75 Select Effluent Application Factor 1 Enter Additional Flow in GPD 0 FOR HLT SYSTEMS w / ANY DIST. MEDIA See Distrbution Media Tabs below for design details T R E N C H S T A 1600 B E D S T A 2000 FOR TL1 w / GRAVEL DISTIRBUTION MEDIA CLICK HERE to go to / return to this TAB T R E N C H S T A 2000 B E D S T A 2400 FOR TL1 w / MANUFACTURED DIST. MEDIA CLICK HERE to go to / return to this TAB T R E N C H S T A 1800 B E D S T A 2160 FOR TL1 w / CHAMBER DISTRIBUTION MEDIA CLICK HERE to go to / return to this TAB T R E N C H S T A 1400 B E D S T A 1680 Appendix E: Dosing Volumes Dosing Calculations Project Name: 3006 Frying Pan Rd. Project Number:2021-24 Date: 6-18-2021 By: TRS 1 Calculate total STA pipe length Variable Description Notes Number of Zones 3 Number of Laterals per Zone 4 Number of Infiltrators per Lateral 14 Number of Infiltrators 168 Llateral Lateral Length 56 ft = #infiltrators * 4 ft/infiltrator Ltotal-lateral Total Pipe Length Per Zone 224 ft 2 Calculate approach pipe system volume Pipe Material PVC Pipe Type Schedule 40 Lapproach Approach Pipe Length 2,247 ft φpipe Pipe Diameter 1.50 in According to manufacturer ID Pipe Inner Diameter 1.610 in According to manufacturer Vapproach Pipe Volume 31.767 cf = Ltotal*0.25* Π * (ID[in]/12)2 Vapproach Pipe Volume 237.6 gal = Vlateral [cf] * 7.48 gal/cf 3 Calculate manifold pipe system volume Pipe Material PVC Pipe Type Schedule 40 Lmanifold Approach Pipe Length 12 ft φpipe Pipe Diameter 1.50 in According to manufacturer ID Pipe Inner Diameter 1.500 in According to manufacturer Vmanifold Pipe Volume 0.147 cf = Ltotal*0.25* Π * (ID[in]/12)2 Vmanifold Pipe Volume 1.1 gal = Vlateral [cf] * 7.48 gal/cf 4 Calculate lateral pipe system volume Pipe Material PVC According to Pitkin County Regulations Pipe Type Schedule 40 Lmanifold Approach Pipe Length 224 ft φpipe Pipe Diameter 1.50 in According to manufacturer ID Pipe Inner Diameter 1.500 in According to manufacturer Vlateral Pipe Volume 2.749 cf = Ltotal*0.25* Π * (ID[in]/12)2 Vlateral Pipe Volume 20.6 gal = Vlateral [cf] * 7.48 gal/cf 5 Calculate total pipe volume Vtotal Total Pipe Volume 259.3 gal = Vapproach + Vmanifold + Vlateral 6 Calculate dosing/pumping volume required φvault Height 4.00 ft Second chamber (max water elevation) φvault Width 5.50 ft Second chamber φvault Length 2.87 ft Second chamber V/ftchamber Volume of Chamber Per Foot 118 gal/ft According to details and manufacturer Vdosing Estimated Dosing Volume 143.93 gal Rule of thumb, 7 times STA piping system volume Hcalculated Calculated Operating Depth 1.22 ft = Vdosing / V/ftchamber Hcalculated Calculated Operating Depth 14.63 in = Hcalculated [ft] * 12in/ft Hactual Actual Operating Depth Drawdown 14.00 in Vdosing Actual Dose Volume 138 gal = V/ftchamber * Hactual P:\2021\24-Coffman's Corner (3006 Frying Pan)\12-OWTS\3006 Frying Pan Rd. - OWTS Calculations1.xlsx Printed: 11/23/2021 Page 1 of 1 Appendix F: Pump Curves Pump Selection for a Pressurized System - Single Family Residence Project Parameters Discharge Assembly Size Transport Length Before Valve Transport Pipe Class Transport Line Size Distributing Valve Model Transport Length After Valve Transport Pipe Class Transport Pipe Size Max Elevation Lift Manifold Length Manifold Pipe Class Manifold Pipe Size Number of Laterals per Cell Lateral Length Lateral Pipe Class Lateral Pipe Size Orifice Size Orifice Spacing Residual Head Flow Meter 'Add-on' Friction Losses 1.50 150 40 1.50 6403 70 40 1.50 30 10 40 1.50 12 56 40 1.50 1/8 4 5 None 0 inches feet inches feet inches feet feet inches feet inches inches feet feet inches feet Calculations Minimum Flow Rate per Orifice Number of Orifices per Zone Total Flow Rate per Zone Number of Laterals per Zone % Flow Differential 1st/Last Orifice Transport Velocity Before Valve Transport Velocity After Valve 0.43 60 25.9 4 0.6 4.1 4.1 gpm gpm % fps fps Frictional Head Losses Loss through Discharge Loss in Transport Before Valve Loss through Valve Loss in Transport after Valve Loss in Manifold Loss in Laterals Loss through Flowmeter 'Add-on' Friction Losses 2.0 6.0 5.8 2.8 0.1 0.1 0.0 0.0 feet feet feet feet feet feet feet feet Pipe Volumes Vol of Transport Line Before Valve Vol of Transport Line After Valve Vol of Manifold Vol of Laterals per Zone Total Vol Before Valve Total Vol After Valve 15.9 7.4 1.1 23.7 15.9 32.1 gals gals gals gals gals gals Minimum Pump Requirements Design Flow Rate Total Dynamic Head 25.9 51.9 gpm feet 0 5 10 15 20 25 30 35 40 0 50 100 150 200 250 300 Net Discharge (gpm) PumpData PF3005 High Head Effluent Pump 30 GPM, 1/2HP 115/230V 1Ø 60Hz, 200V 3Ø 60Hz Legend System Curve: Pump Curve: Pump Optimal Range: Operating Point: Design Point: Appendix G: Product Information. Technical Data Sheet Orenco Systems® Inc. , 814 Airway Ave., Sutherlin, OR 97479 USA • 800-348-9843 • 541-459-4449 • www.orenco.com NTD-PU-PF-1 Rev. 5.0, © 03/17 Page 1 of 5 PF Series 60-Hz, 4-inch (100-mm) Submersible Effluent Pumps Applications Our 4-inch (100-mm) Submersible Effluent Pumps are designed to transport screened effluent (with low TSS counts) from septic tanks or separate dosing tanks. All our pumps are constructed of lightweight, corrosion-resistant stainless steel and engineered plastics; all are field- serviceable and repairable with common tools; 60-Hz PF Series models are CSA certified to the U.S. and Canadian safety standards for effluent pumps, meeting UL requirements. Orenco’s Effluent Pumps are used in a variety of applications, includ- ing pressurized drainfields, packed bed filters, mounds, aerobic units, effluent irrigation, effluent sewers, wetlands, lagoons, and more. These pumps are designed to be used with a Biotube® pump vault or after a secondary treatment system. Features/Specifications To specify this pump for your installation, require the following: • Minimum 24-hour run-dry capability with no deterioration in pump life or performance* • Patented 1⁄8-inch (3-mm) bypass orifice to ensure flow recirculation for motor cooling and to prevent air bind • Liquid end repair kits available for better long-term cost of ownership • TRI-SEAL™ floating impeller design on 10, 15, 20, and 30 gpm (0.6, 1.0, 1.3, and 1.9 L/sec) models; floating stack design on 50 and 75 gpm (3.2 and 4.7 L/sec) models • Franklin Electric Super Stainless motor, rated for continuous use and frequent cycling • Type SOOW 600-V motor cable * Not applicable for 5-hp (3.73 kW) models Standard Models See specifications chart, pages 2-3, for a list of standard pumps. For a complete list of available pumps, call Orenco. Product Code Diagram PF - Nominal flow, gpm (L/sec): 10 = 10 (0.6) 15 = 15 (1.0) 20 = 20 (1.3) 30 = 30 (1.9) 50 = 50 (3.2) 75 = 75 (4.7) Pump, PF Series Frequency: 1 = single-phase 60 Hz 3 = three-phase 60 Hz Voltage, nameplate: 1 = 115* 200 = 200 2 = 230 4 = 460 Horsepower (kW): 03 = 1⁄3 hp (0.25) 05 = ½ hp (0.37) 07 = ¾ hp (0.56) 10 = 1 hp (0.75) 15 = 1½ hp (1.11) 20 = 2 hp (1.50) 30 = 3 hp (2.24) 50 = 5 hp (3.73) Cord length, ft (m):‡ Blank = 10 (3) 20 = 20 (6) 30 = 30 (9) 50 = 50 (15) Check valve: Blank = no internal check valve CV = internal check valve† * ½-hp (0.37kW) only † Available for 10 gpm (0.6 L/sec), 1/2 hp (0.37 kW) only ‡ Note: 20-ft cords are available only for single-phase pumps through 1½ hp Franklin Super Stainless Motor Franklin Liquid End Discharge Connection Bypass Orifice Suction Connection LR80980 LR2053896 Powered by Orenco Systems® Inc. , 814 Airway Ave., Sutherlin, OR 97479 USA • 800-348-9843 • 541-459-4449 • www.orenco.com NTD-PU-PF-1 Rev. 5.0, © 03/17 Page 2 of 5 Technical Data Sheet Specifications Pump Model PF100511 10 (0.6) 0.50 (0.37) 1 115 120 12.7 12.7 6 1 ¼ in. GFP 23.0 (660) 16 (406) 26 (12) 300 PF100511CV 10 (0.6) 0.50 (0.37) 1 115 120 12.7 12.7 6 1 ¼ in. GFP 23.0 (660) 16 (406) 26 (12) 300 PF100512 10 (0.6) 0.50 (0.37) 1 230 240 6.3 6.3 6 1 ¼ in. GFP 23.0 (660) 16 (406) 26 (12) 300 PF10053200 10 (0.6) 0.50 (0.37) 3 200 208 3.8 3.8 6 1 ¼ in. GFP 23.0 (660) 16 (406) 26 (12) 300 PF100712 4, 5 10 (0.6) 0.75 (0.56) 1 230 240 8.3 8.3 8 1 ¼ in. GFP 25.9 (658) 17 (432) 30 (14) 300 PF10073200 4, 5 10 (0.6) 0.75 (0.56) 3 200 208 5.1 5.2 8 1 ¼ in. GFP 25.4 (645) 17 (432) 31 (14) 300 PF101012 5, 6 10 (0.6) 1.00 (0.75) 1 230 240 9.6 9.6 9 1 ¼ in. GFP 27.9 (709) 18 (457) 33 (15) 100 PF10103200 5, 6 10 (0.6) 1.00 (0.75) 3 200 208 5.5 5.5 9 1 ¼ in. GFP 27.3 (693) 18 (457) 37 (17) 300 PF102012 5, 6, 7, 8 10 (0.6) 2.00 (1.49) 1 230 240 12.1 12.1 18 1 ¼ in. SS 39.5 (1003) 22 (559) 48 (22) 100 PF102032 5, 6, 8 10 (0.6) 2.00 (1.49) 3 230 240 7.5 7.6 18 1 ¼ in. SS 37.9 (963) 20 (508) 44 (20) 300 PF10203200 5, 6, 8 10 (0.6) 2.00 (1.49) 3 200 208 8.7 8.7 18 1 ¼ in. SS 37.9 (963) 20 (508) 44 (20) 300 PF150311 15 (1.0) 0.33 (0.25) 1 115 120 8.7 8.8 3 1 ¼ in. GFP 19.5 (495) 15 (380) 23 (10) 300 PF150312 15 (1.0) 0.33 (0.25) 1 230 240 4.4 4.5 3 1 ¼ in. GFP 19.5 (495) 15 (380) 23 (10) 300 PF200511 20 (1.3) 0.50 (0.37) 1 115 120 12.3 12.5 4 1 ¼ in. GFP 22.3 (566) 18 (457) 25 (11) 300 PF200512 20 (1.3) 0.50 (0.37) 1 230 240 6.4 6.5 4 1 ¼ in. GFP 22.5 (572) 18 (457) 26 (12) 300 PF20053200 20 (1.3) 0.50 (0.37) 3 200 208 3.7 3.8 4 1 ¼ in. GFP 22.3 (566) 18 (457) 26 (12) 300 PF201012 4, 5 20 (1.3) 1.00 (0.75) 1 230 240 10.5 10.5 7 1 ¼ in. GFP 28.4 (721) 20 (508) 33 (15) 100 PF20103200 4, 5 20 (1.3) 1.00 (0.75) 3 200 208 5.8 5.9 7 1 ¼ in. GFP 27.8 (706) 20 (508) 33 (15) 300 PF201512 4, 5 20 (1.3) 1.50 (1.11) 1 230 240 12.4 12.6 9 1 ¼ in. GFP 34.0 (864) 24 (610) 41 (19) 100 PF20153200 4, 5 20 (1.3) 1.50 (1.11) 3 200 208 7.1 7.2 9 1 ¼ in. GFP 30.7 (780) 20 (508) 35 (16) 300 PF300511 30 (1.9) 0.50 (0.37) 1 115 120 11.8 11.8 3 1 ¼ in. GFP 21.3 (541) 20 (508) 28 (13) 300 PF300512 30 (1.9) 0.50 (0.37) 1 230 240 6.2 6.2 3 1 ¼ in. GFP 21.3 (541) 20 (508) 25 (11) 300 PF30053200 30 (1.9) 0.50 (0.37) 3 200 208 3.6 3.6 3 1 ¼ in. GFP 21.3 (541) 20 (508) 25 (11) 300 PF300712 30 (1.9) 0.75 (0.56) 1 230 240 8.5 8.5 5 1 ¼ in. GFP 24.8 (630) 21 (533) 29 (13) 300 PF30073200 30 (1.9) 0.75 (0.56) 3 200 208 4.9 4.9 5 1 ¼ in. GFP 24.6 (625) 21 (533) 30 (14) 300 PF301012 4 30 (1.9) 1.00 (0.75) 1 230 240 10.4 10.4 6 1 ¼ in. GFP 27.0 (686) 22 (559) 32 (15) 100 PF30103200 4 30 (1.9) 1.00 (0.75) 3 200 208 5.8 5.8 6 1 ¼ in. GFP 26.4 (671) 22 (559) 33 (15) 300 PF301512 4, 5 30 (1.9) 1.50 (1.11) 1 230 240 12.6 12.6 8 1 ¼ in. GFP 32.8 (833) 24 (610) 40 (18) 100 PF30153200 4, 5 30 (1.9) 1.50 (1.11) 3 200 208 6.9 6.9 8 1 ¼ in. GFP 29.8 (757) 22 (559) 34 (15) 300 PF301534 4, 5 30 (1.9) 1.50 (1.11) 3 460 480 2.8 2.8 8 1 ¼ in. GFP 29.5 (685) 22 (559) 34 (15) 300 PF302012 5, 6, 7 30 (1.9) 2.00 (1.49) 1 230 240 11.0 11.0 10 1 ¼ in. SS 35.5 (902) 26 (660) 44 (20) 100 PF30203200 5, 6 30 (1.9) 2.00 (1.49) 3 200 208 9.3 9.3 10 1 ¼ in. SS 34.0 (864) 24 (610) 41 (19) 300 PF303012 5, 6, 7, 8 30 (1.9) 3.00 (2.23) 1 230 240 16.8 16.8 14 1 ¼ in. SS 44.5 (1130) 33 (838) 54 (24) 100 PF303032 5, 6, 8 30 (1.9) 3.00 (2.23) 3 230 240 10.0 10.1 14 1 ¼ in. SS 44.3 (1125) 27 (686) 52 (24) 300 PF305012 5, 6, 7, 8 30 (1.9) 5.00 (3.73) 1 230 240 25.6 25.8 23 1 ¼ in. SS 66.5 (1689) 53 (1346) 82 (37) 100 PF305032 5, 6, 8 30 (1.9) 5.00 (3.73) 3 230 240 16.6 16.6 23 1 ¼ in. SS 60.8 (1544) 48 (1219) 66 (30) 300 PF30503200 5, 6, 8 30 (1.9) 5.00 (3.73) 3 200 208 18.7 18.7 23 1 ¼ in. SS 60.8 (1544) 48 (1219) 66 (30) 300 PF500511 50 (3.2) 0.50 (0.37) 1 115 120 12.1 12.1 2 2 in. SS 20.3 (516) 24 (610) 27 (12) 300 PF500512 50 (3.2) 0.50 (0.37) 1 230 240 6.2 6.2 2 2 in. SS 20.3 (516) 24 (610) 27 (12) 300 PF500532 50 (3.2) 0.50 (0.37) 3 230 240 3.0 3.0 2 2 in. SS 20.3 (516) 24 (610) 28 (13) 300 PF50053200 50 (3.2) 0.50 (0.37) 3 200 208 3.7 3.7 2 2 in. SS 20.3 (516) 24 (610) 28 (13) 300 PF500534 50 (3.2) 0.50 (0.37) 3 460 480 1.5 1.5 2 2 in. SS 20.3 (516) 24 (610) 28 (13) 300 PF500712 50 (3.2) 0.75 (0.56) 1 230 240 8.5 8.5 3 2 in. SS 23.7 (602) 25 (635) 31 (14) 300 PF500732 50 (3.2) 0.75 (0.56) 3 230 240 3.9 3.9 3 2 in. SS 23.7 (602) 25 (635) 32 (15) 300Design gpm (L/sec)Horsepower (kW)PhaseNameplate voltageActual voltageDesign flow ampsMax ampsImpellersDischarge size and material 1Length, in. (mm)Min. liquid level, 2 in. (mm)Weight, 3 lb (kg)Rated cycles/day Orenco Systems® Inc. , 814 Airway Ave., Sutherlin, OR 97479 USA • 800-348-9843 • 541-459-4449 • www.orenco.com NTD-PU-PF-1 Rev. 5.0, © 03/17 Page 3 of 5 Technical Data Sheet Specifications, cont. Pump Model PF50073200 50 (3.2) 0.75 (0.56) 3 200 208 4.9 4.9 3 2 in. SS 23.1 (587) 26 (660) 32 (15) 300 PF500734 50 (3.2) 0.75 (0.56) 3 460 480 1.8 1.8 3 2 in. SS 34.8 (884) 25 (635) 31 (14) 300 PF501012 50 (3.2) 1.00 (0.75) 1 230 240 10.1 10.1 4 2 in. SS 27.0 (686) 26 (660) 35 (16) 100 PF50103200 50 (3.2) 1.00 (0.75) 3 200 208 5.7 5.7 4 2 in. SS 26.4 (671) 26 (660) 39 (18) 300 PF501034 50 (3.2) 1.00 (0.75) 3 460 480 2.2 2.2 4 2 in. SS 26.4 (671) 26 (660) 39 (18) 300 PF5015124 50 (3.2) 1.50 (1.11) 1 230 240 12.5 12.6 5 2 in. SS 32.5 (826) 30 (762) 41 (19) 100 PF501532004 50 (3.2) 1.50 (1.11) 3 200 208 7.0 7.0 5 2 in. SS 29.3 (744) 26 (660) 35 (16) 300 PF503012 4, 5, 7, 8 50 (3.2) 3.00 (2.23) 1 230 240 17.7 17.7 8 2 in. SS 43.0 (1092) 37 (940) 55 (25) 100 PF50303200 4, 5, 8 50 (3.2) 3.00 (2.23) 3 200 208 13.1 13.1 8 2 in. SS 43.4 (1102) 30 (762) 55 (25) 300 PF503034 4, 5, 8 50 (3.2) 3.00 (2.23) 3 460 480 5.3 5.3 8 2 in. SS 40.0 (1016) 31 (787) 55 (25) 300 PF505012 5,6,7,8 50 (3.2) 5.00 (3.73) 1 230 240 26.2 26.4 13 2 in. SS 65.4 (1661) 55 (1397) 64 (29) 300 PF505032 5,6,7,8 50 (3.2) 5.00 (3.73) 3 230 240 16.5 16.5 13 2 in. SS 59.3 (1506) 49 (1245) 64 (29) 300 PF751012 75 (4.7) 1.00 (0.75) 1 230 240 9.9 10.0 3 2 in. SS 27.0 (686) 27 (686) 34 (15) 100 PF751512 75 (4.7) 1.50 (1.11) 1 230 240 12.1 12.3 4 2 in. SS 33.4 (848) 30 (762) 44 (20) 100 1 GFP = glass-filled polypropylene; SS = stainless steel. The 1 ¼-in. NPT GFP discharge is 2 7⁄8 in. octagonal across flats; the 1 ¼-in. NPT SS discharge is 2 1⁄8 in. octagonal across flats; and the 2-in. NPT SS discharge is 2 7⁄8 in. hexagonal across flats. Discharge is female NPT threaded, U.S. nominal size, to accommodate Orenco® discharge hose and valve assemblies. Consult your Orenco Distributor about fittings to connect hose and valve assemblies to metric-sized piping. 2 Minimum liquid level is for single pumps when installed in an Orenco Biotube® Pump Vault or Universal Flow Inducer. In other applications, minimum liquid level should be top of pump. Consult Orenco for more information. 3 Weight includes carton and 10-ft (3-m) cord. 4 High-pressure discharge assembly required. 5 Do not use cam-lock option (Q) on discharge assembly. 6 Custom discharge assembly required for these pumps. Contact Orenco. 7 Capacitor pack (sold separately or installed in a custom control panel) required for this pump. Contact Orenco. 8 Torque locks are available for all pumps, and are supplied with 3-hp and 5-hp pumps. Materials of Construction Discharge Glass-filled polypropylene or stainless steel Discharge bearing Engineered thermoplastic (PEEK) Diffusers Glass-filled PPO (Noryl GFN3) Impellers Celcon® acetal copolymer on 10-, 20, and 30-gpm models; 50-gpm impellers are Noryl GFN3 Intake screen Polypropylene Suction connection Stainless steel Drive shaft 7/16 inch hexagonal stainless steel, 300 series Coupling Sintered stainless steel, 300 series Shell Stainless steel, 300 series Motor Franklin motor exterior constructed of stainless steel. Motor filled with deionized water and propylene glycol for constant lubrication. Hermetically sealed motor housing ensures moisture-free windings. All thrust absorbed by Kingsbury-type thrust bearing. Rated for continuous duty. Single- phase motors and 200 and 230 V 3-phase motors equipped with surge arrestors for added security. Single-phase motors through 1.5 hp (1.11 kW) have built-in thermal overload protection, which trips at 203-221˚ F (95-105˚ C). Design gpm (L/sec)Horsepower (kW)PhaseNameplate voltageActual voltageDesign flow ampsMax ampsImpellersDischarge size and material 1Length, in. (mm)Min. liquid level, 2 in. (mm)Weight, 3 lb (kg)Rated cycles/day Orenco Systems® Inc. , 814 Airway Ave., Sutherlin, OR 97479 USA • 800-348-9843 • 541-459-4449 • www.orenco.com NTD-PU-PF-1 Rev. 5.0, © 03/17 Page 4 of 5 Technical Data Sheet Using a Pump Curve A pump curve helps you determine the best pump for your system. Pump curves show the relationship between flow and pressure (total dynamic head, or TDH), providing a graphical representation of a pump’s optimal performance range. Pumps perform best at their nominal flow rate. These graphs show optimal pump operation ranges with a solid line and show flow rates outside of these ranges with a dashed line. For the most accurate pump specification, use Orenco’s PumpSelect™ software. Pump Curves Total dynamic head (TDH) in feetFlow in gallons per minute (gpm) 24 81012141660 800 700 600 500 400 300 200 100 PF1005-FC w/ ¼" flow controller PF10 Series, 60 Hz, 0.5 - 2.0 hp PF1007 PF1010 PF1020 PF1005 Total dynamic head (TDH) in feetFlow in gallons per minute (gpm) 36 12 15 18 21 2490 160 140 120 100 80 60 40 20 0 PF1503 PF15 Series, 60 Hz, 0.3 hp Total dynamic head (TDH) in feetFlow in gallons per minute (gpm) 5102025303540150 400 350 300 250 200 150 100 50 0 PF2005 PF2010 PF2015 PF20 Series, 60 Hz, 0.5 - 1.5 hp Total dynamic head (TDH) in feetFlow in gallons per minute (gpm) 510202530354045150 800 900 700 600 500 400 300 200 100 0 PF3005 PF3007 PF3010 PF3015 PF3020 PF3030 PF3050 PF30 Series, 60 Hz, 0.5 - 5.0 hp Orenco Systems® Inc. , 814 Airway Ave., Sutherlin, OR 97479 USA • 800-348-9843 • 541-459-4449 • www.orenco.com NTD-PU-PF-1 Rev. 5.0, © 03/17 Page 5 of 5 Technical Data Sheet Total dynamic head (TDH) in feetFlow in gallons per minute (gpm) 450 400 350 300 250 200 150 100 50 0 10 02040506070809030 PF5050 PF5030 PF5015 PF5010 PF5007 PF5005 PF50 Series, 60 Hz, 0.5 - 5.0 hp Total dynamic head (TDH) in feetFlow in gallons per minute (gpm) 10 20 40 50 60 70 80 90 100300 80 90 100 70 60 50 40 30 20 10 0 PF75 Series, 60 Hz, 1.0 - 1.5 hpPF7515 PF7510 Pump Curves, cont. Orenco® | General Onsite Wastewater Products Catalog PAGE 70 FOR A DISTRIBUTOR NEAR YOU, VISIT US ONLINE AT WWW.ORENCO.COM ACT-PRD-GOP-1, REV. 2.0 Oriﬁ ce Shields Orenco® Oriﬁ ce Shields are used in a pressurized distribution system to protect the oriﬁ ces from backﬁ ll debris that might cause oriﬁ ce blockage. • Snap-ﬁ t on top of or beneath a lateral, depending on the location of the oriﬁ ce • Installs on top of lateral or underneath lateral • Oriﬁ ce Shields available to ﬁ t ¾-inch, 1-inch, 1¼-inch, 1½-inch, and 2-inch NPS sizes Product Codes • OS075 — ﬁ ts ¾-inch NPS (20-mm DN) lateral pipe • OS100 — ﬁ ts 1-inch NPS (25-mm DN) lateral pipe • OS125 — ﬁ ts 1¼-inch NPS (32-mm DN) lateral pipe • OS150 — ﬁ ts 1½-inch NPS (40-mm DN) lateral pipe • OS200 — ﬁ ts 2-inch NPS (50-mm DN) lateral pipe * For the full range of available product options, contact your local Orenco Distributor or Orenco. Orenco Orifice Shields Miscellaneous Onsite Wastewater Products Appendix H: Drawings C17OWTS SYSTEMCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS EAGLE COUNTY COMMENT RESPONSE SET 11/04/2021 TRS2 C18OWTS - STA LAYOUTCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS EAGLE COUNTY COMMENT RESPONSE SET 11/04/2021 TRS2 Kbi x··········C19OWTS DETAILSCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS EAGLE COUNTY COMMENT RESPONSE SET 11/10/2021 TRS2 100% CDs 11/19/2021 TRS3 11/30/23, 10:05 AM Eagle County Government Mail - Fwd: septic tank riser pipe. https://mail.google.com/mail/u/0/?ik=08c22beb03&view=pt&search=all&permthid=thread-f:1783917663262687777&simpl=msg-f:17839176632626877…1/2 Danielle Salinsky <danielle.salinsky@eaglecounty.us> Fwd: septic tank riser pipe. 1 message Claire Lewandowski <claire.lewandowski@eaglecounty.us>Wed, Nov 29, 2023 at 9:47 AM To: Danielle Salinsky <danielle.salinsky@eaglecounty.us> Here is an additional photo for 3006 frying pan rd. Thanks again! ---------- Forwarded message --------- From: Marco Gomez <mgomez@harrimanconstruction.com> Date: Mon, Nov 27, 2023 at 3:53 PM Subject: septic tank riser pipe. To: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: Loren Haselden <lhaselden@harrimanconstruction.com>, Boone Caudill <bcaudill@harrimanconstruction.com>, Dan Benson <dbenson@harrimanconstruction.com> Good afternoon Claire, Please the septic riser pipe extended to the top for easy access/ maintenance as you requested. This concludes all my pictures to you. Would you please advise if you the inspection is now approved? Please let me know than you. Marco gomez Harriman construction 280 E Cody Lane Basalt, CO 970-927-1161 C. 970-379-4888 From: Marco Gomez <mgomez@harrimanconstruction.com> Sent: Monday, November 27, 2023 3:43 PM To: Marco Gomez <mgomez@harrimanconstruction.com> Subject: 11/30/23, 10:05 AM Eagle County Government Mail - Fwd: septic tank riser pipe. https://mail.google.com/mail/u/0/?ik=08c22beb03&view=pt&search=all&permthid=thread-f:1783917663262687777&simpl=msg-f:17839176632626877…2/2 Sent from my iPhone -- Claire Lewandowski, REHS Environmental Health Manager Eagle County Public & Environmental Health she | her | hers 970-328-8755 (office) 970-328-8747 (direct) environment@eaglecounty.us www.eaglecounty.us “To succeed, planning alone is insufficient. One must improvise as well.” ― Isaac Asimov 9/10/21, 4:15 PM Eagle County Government Mail - 3006 Frying Pan Rd OWTS Application and Design Corrections https://mail.google.com/mail/u/0?ik=da50768ddd&view=pt&search=all&permthid=thread-a%3Ar-3586028163543622290&simpl=msg-a%3Ar-5276075…1/7 Claire Lewandowski <claire.lewandowski@eaglecounty.us> 3006 Frying Pan Rd OWTS Application and Design Corrections 13 messages Claire Lewandowski <claire.lewandowski@eaglecounty.us>Fri, Aug 20, 2021 at 2:38 PM To: Tyler Stevens <tylers@rfeng.biz>, Richard Goulding <richardg@rfeng.biz> Cc: Maura Trumble <mtrumble@ccyarchitects.com>, Matthew Qual <mqual@ccyarchitects.com>, Danielle Sell <danielle.sell@eaglecounty.us> Good afternoon, I finished reviewing the design for this OWTS and I have some comments for you to address: 1. The design copy I received was very blurry, including photos, but the design drawings were incomplete, the site plan does not show the whole system (just tank), nor were there any cross views for the design, just the ADV. I think they may have been cut-off while scanning. I prefer electronic copies of the design and design site plans for these reasons, and since they are mainly prepared in cad programs they are easier to view. 2. The soils tests mention no ground water but there was no comment on evidence of seasonally high ground water (mottling or redoximorphic features) . Would you comment on the presence or absence of evidence of seasonally high groundwater? 3. The plans specify that the soil is type R-1, option 2, using 2 feet of sand, but there were no details on the soil treatment area(STA) designed including trenches, bed, sand cross views, sand specifications. Please include this including the entire layout and design of the STA. 4. The plan is designed for 600 gpd, and a two-comp tank with 1500 gallons capacity in total. 43.9.I.3.b. states, "The second compartment of a two-compartment septic tank may only be used as the pump tank when the tank is specifically designed for this purpose and it can be demonstrated to the satisfaction of the ECPHA that the minimum 48-hour detention time will not be decreased." I have interpreted this to mean that if you want to use the second compartment as a pump chamber there must be 72 hours of retention in the two compartments, so the pump can send 24 hours of effluent (600 gallons) out without disturbing 48 hours of effluent (1200 gallons). So 1500 gallons would only leave 900 gallons undisturbed. The options are to get a larger two compartment tank (1800 gallons which would be a 2000 gallon 2-comp tank) or add a pump chamber after the tank, or a three- compartment tank with a min of 1500 gallon in the first two compartments. I have discussed this with CDPHEs decentralized systems rep and received agreement with my interpretation. 5. Last, I did not see any mention of filtering the effluent, are you proposing a biotube vault or other type? Please include that information. Thank you, Claire -- Claire Lewandowski, REHS Environmental Health Specialist III 970-328-8755 (office) 970-328-8747 (direct) environment@eaglecounty.us www.eaglecounty.us Tyler Stevens <tylers@rfeng.biz>Fri, Aug 20, 2021 at 3:28 PM To: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: Maura Trumble <mtrumble@ccyarchitects.com>, Matthew Qual <mqual@ccyarchitects.com>, Danielle Sell <danielle.sell@eaglecounty.us> 9/10/21, 4:15 PM Eagle County Government Mail - 3006 Frying Pan Rd OWTS Application and Design Corrections https://mail.google.com/mail/u/0?ik=da50768ddd&view=pt&search=all&permthid=thread-a%3Ar-3586028163543622290&simpl=msg-a%3Ar-5276075…2/7 Hey Claire, It seems a bit of information wasn’t up to date or there may have been some sheets that didn’t make it to you. My apologies. I will get proper responses, updated reports/drawings and corrections to you ASAP but in the mean time here are some quick responses and the entire set. My responses are in Red below. Thanks, Tyler TYLER STEVENS, PE Project Engineer Office: 970.340.4130 ext. 706 Mobile: 970.379.2687 https://www.rfeng.biz/ From: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Sent: Friday, August 20, 2021 2:38 PM To: Tyler Stevens <tylers@rfeng.biz>; Richard Goulding <richardg@rfeng.biz> Cc: Maura Trumble <mtrumble@ccyarchitects.com>; Matthew Qual <mqual@ccyarchitects.com>; Danielle Sell <danielle.sell@eaglecounty.us> Subject: 3006 Frying Pan Rd OWTS Application and Design Corrections Good afternoon, I finished reviewing the design for this OWTS and I have some comments for you to address: 1. The design copy I received was very blurry, including photos, but the design drawings were incomplete, the site plan does not show the whole system (just tank), nor were there any cross views for the design, just the ADV. I think they may have been cut-off while scanning. I prefer electronic copies of the design and design site plans for these reasons, and since they are mainly prepared in cad programs they are easier to view. The full set should be attached now. 2. The soils tests mention no ground water but there was no comment on evidence of seasonally high ground water (mottling or redoximorphic features) . Would you comment on the presence or absence of evidence of seasonally high groundwater? There wasn’t any signs of high ground water or color change in the soil profile. I believe they have been monitoring ground water all summer so I might be able to get some logs. 9/10/21, 4:15 PM Eagle County Government Mail - 3006 Frying Pan Rd OWTS Application and Design Corrections https://mail.google.com/mail/u/0?ik=da50768ddd&view=pt&search=all&permthid=thread-a%3Ar-3586028163543622290&simpl=msg-a%3Ar-5276075…3/7 3. The plans specify that the soil is type R-1, option 2, using 2 feet of sand, but there were no details on the soil treatment area(STA) designed including trenches, bed, sand cross views, sand specifications. Please include this including the entire layout and design of the STA. The detail sheet C18 has a detail showing the sand and a gradation spec. to go with it. 4. The plan is designed for 600 gpd, and a two-comp tank with 1500 gallons capacity in total. 43.9.I.3.b. states, "The second compartment of a two-compartment septic tank may only be used as the pump tank when the tank is specifically designed for this purpose and it can be demonstrated to the satisfaction of the ECPHA that the minimum 48-hour detention time will not be decreased." I have interpreted this to mean that if you want to use the second compartment as a pump chamber there must be 72 hours of retention in the two compartments, so the pump can send 24 hours of effluent (600 gallons) out without disturbing 48 hours of effluent (1200 gallons). So 1500 gallons would only leave 900 gallons undisturbed. The options are to get a larger two compartment tank (1800 gallons which would be a 2000 gallon 2-comp tank) or add a pump chamber after the tank, or a three- compartment tank with a min of 1500 gallon in the first two compartments. I have discussed this with CDPHEs decentralized systems rep and received agreement with my interpretation. I will dive into this piece of code but we can upsize the tank if needed. We usually get everything from valley precast who supplies the tank and the pumping Orenco package. They design/builds the tanks for most the systems I’ve done. There is a detail from valley precast on sheet C18 as well. It seems this should satisfy the “specifically designed” criteria. 5. Last, I did not see any mention of filtering the effluent, are you proposing a biotube vault or other type? Please include that information. I will specify that the bio-tube filter be used clearly in the drawing and report. It should come with the prepacked Orenco pump pack that valey precast installs at least that what I’ve seen before. [Quoted text hidden] 3006 Frying Pan Rd.- Civil Permit Set.pdf 23149K Claire Lewandowski <claire.lewandowski@eaglecounty.us>Fri, Aug 20, 2021 at 3:31 PM To: Tyler Stevens <tylers@rfeng.biz> Cc: Maura Trumble <mtrumble@ccyarchitects.com>, Matthew Qual <mqual@ccyarchitects.com>, Danielle Sell <danielle.sell@eaglecounty.us> Great, thank you. Attached is what I received initially for your information. [Quoted text hidden] Application and Design.pdf 3029K Tyler Stevens <tylers@rfeng.biz>Fri, Aug 20, 2021 at 3:33 PM To: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: Maura Trumble <mtrumble@ccyarchitects.com>, Matthew Qual <mqual@ccyarchitects.com>, Danielle Sell <danielle.sell@eaglecounty.us> Ohhh I see what happened… they were sized to 24”x36” and I guess maybe they got replotted to just 8.5” x 11” cutting them off. [Quoted text hidden] Tyler Stevens <tylers@rfeng.biz>Fri, Aug 20, 2021 at 3:34 PM To: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: Maura Trumble <mtrumble@ccyarchitects.com>, Matthew Qual <mqual@ccyarchitects.com>, Danielle Sell <danielle.sell@eaglecounty.us> Here the original report. 9/10/21, 4:15 PM Eagle County Government Mail - 3006 Frying Pan Rd OWTS Application and Design Corrections https://mail.google.com/mail/u/0?ik=da50768ddd&view=pt&search=all&permthid=thread-a%3Ar-3586028163543622290&simpl=msg-a%3Ar-5276075…4/7 Sorry about that. [Quoted text hidden] 3006 Frying Pan Rd. - OWTS Report (FULL 7-7-2021).pdf 10538K Matthew Qual <mqual@ccyarchitects.com>Fri, Aug 20, 2021 at 3:35 PM To: Tyler Stevens <tylers@rfeng.biz>, Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: Maura Trumble <mtrumble@ccyarchitects.com>, Danielle Sell <danielle.sell@eaglecounty.us> Apologies all, that’s exactly what happened. I didn’t realize there were 24x36’s in the mix. Hopefully everything is cleared up with the previous attachment. Thanks, Matt MATT QUAL | Architect C C Y A R C H I T E C T S 970 927 4925 Office ccyarchitects.com RECENT RECOGNITIONS [Quoted text hidden] This email has been scanned for spam and viruses by Proofpoint Essentials. Click here to report this email as spam. Claire Lewandowski <claire.lewandowski@eaglecounty.us>Fri, Aug 20, 2021 at 3:36 PM To: Tyler Stevens <tylers@rfeng.biz> Cc: Maura Trumble <mtrumble@ccyarchitects.com>, Matthew Qual <mqual@ccyarchitects.com>, Danielle Sell <danielle.sell@eaglecounty.us> Thank you! Let me know about the tank size and your interpretation of that regulation. [Quoted text hidden] Tyler Stevens <tylers@rfeng.biz>Fri, Aug 20, 2021 at 3:58 PM To: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: Maura Trumble <mtrumble@ccyarchitects.com>, Matthew Qual <mqual@ccyarchitects.com>, Danielle Sell <danielle.sell@eaglecounty.us> I usually focus on Table 9-1 in section 43.9-B-2a for tank sizing and then choose a tank that has been specifically designed for that volume. I also pay attention to Section 43.9-B-4a. It says 9/10/21, 4:15 PM Eagle County Government Mail - 3006 Frying Pan Rd OWTS Application and Design Corrections https://mail.google.com/mail/u/0?ik=da50768ddd&view=pt&search=all&permthid=thread-a%3Ar-3586028163543622290&simpl=msg-a%3Ar-5276075…5/7 I’ve always thought that the pump residing in the second chamber didn’t change the effective volume of the entire tank. So the volume of the second chamber counts towards the residence time. I guess I’ve never worried about section 43.9.I.3.b. because the tanks usually are specifically designed to house the pump in the second chamber. Here is a link to where I get my tank designs as they are almost always the supplier in our neck of the woods. https://valleyprecast.com/septic-tanks/ [Quoted text hidden] Claire Lewandowski <claire.lewandowski@eaglecounty.us>Fri, Aug 20, 2021 at 4:19 PM To: Tyler Stevens <tylers@rfeng.biz> Cc: Maura Trumble <mtrumble@ccyarchitects.com>, Matthew Qual <mqual@ccyarchitects.com>, Danielle Sell <danielle.sell@eaglecounty.us> Hi Tyler, Here's what Chuck Cusino has previously stated for this specific situation, "Nong the text within 43.9.I.3.b of Reg. 43, which states in part: “The second compartment of a two-compartment sepc tank may only be used as the pump tank when the tank is specifically designed for this purpose and it can be demonstrated to the sasfacon of the local public health agency that the minimum 48-hour detenon me will not be decreased. The pump must be screened or provided with an approved filtering device to assure that only liquid effluent will be discharged…” From this, “technically ” what Claire has determined would be correct, 450 gpd x 2 = 900 gal. retenon for 48 hours; 1250 – 450 = 800 gal. retenon; Thus a 100 gallon shortage. With that said, the regulaon does allow for some latude on this as it states, ”… to the sasfacon of the LPHA…” I have heard that some agencies will use an esmated average daily flow for this determinaon; say 50 gal./person/day. Thus the 800 gallon retenon would be acceptable. The thought here is that for the vast majority of the days the 48 hour retenon me will be addressed, while only on the rare peak day would this requirement be exceeded. An extension of this thought is the theory that if the pump is set to dose say >100 gal., depending on the ming and where the floats are at the end of the day, that final dose may not engage, thus the system would not exceed the 48 hr. detenon me. So to e all of this together; requiring the retenon for the peak flow is perfectly acceptable and provides the most conservave applicaon of the regulaon, which is usually typical. However, there is some flexibility in the interpretaon of the regulaon in this case, which allows for some variability." The only other engineer that I know who uses pumps in the second compartment is now upsizing and did not demonstrate that the me would not be decreased, so I do not have an example of what that would look like, but if you want to put together something as suggested above I would consider it. Thank you, Claire [Quoted text hidden] 9/10/21, 4:15 PM Eagle County Government Mail - 3006 Frying Pan Rd OWTS Application and Design Corrections https://mail.google.com/mail/u/0?ik=da50768ddd&view=pt&search=all&permthid=thread-a%3Ar-3586028163543622290&simpl=msg-a%3Ar-5276075…6/7 Tyler Stevens <tylers@rfeng.biz>Sat, Aug 21, 2021 at 4:20 PM To: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: Maura Trumble <mtrumble@ccyarchitects.com>, Matthew Qual <mqual@ccyarchitects.com>, Danielle Sell <danielle.sell@eaglecounty.us> Hey Claire, Our daily flow is 600 gpd based on 8 people. 600 x 2 =1200 and we are currently specifying a 1500 gallon tank. The first chamber of the tank is 1002 gallon and the second chamber is 507 gallons. I guess there are two choices. 1. If you deem that the second chamber can’t count toward the retention time, then I guess we are 200 gallons short and will need to use the next tank size up, which is 2000 gallons. This tank still has the pump in the second chamber but the inlet chamber is 1559 gallons satisfying our retention time. 2. If you decide that the pump residing in the second chamber of the 1500 gallon tank doesn’t decrease the effective volume by 300 gallons then we can keep the 1500 gallon tank. I have attached cut sheets for both the 1500 gallon and the 2000 gallon tanks. Happy to use either tank just want ensure we meet your interpretation. [Quoted text hidden] 2 attachments G - 3-1500T-2CP-HHa.pdf 447K 3-2000T-2CP-HHa.pdf 451K Claire Lewandowski <claire.lewandowski@eaglecounty.us>Mon, Aug 23, 2021 at 1:55 PM To: Tyler Stevens <tylers@rfeng.biz> Cc: Maura Trumble <mtrumble@ccyarchitects.com>, Matthew Qual <mqual@ccyarchitects.com>, Danielle Sell <danielle.sell@eaglecounty.us> Hi Tyler, Based on those options, I still determine option 1 is correct, for a 2,000 gallon two compartment concrete tank. Thank you [Quoted text hidden] Tyler Stevens <tylers@rfeng.biz>Tue, Aug 24, 2021 at 8:56 AM To: Claire Lewandowski <claire.lewandowski@eaglecounty.us> Cc: Maura Trumble <mtrumble@ccyarchitects.com>, Matthew Qual <mqual@ccyarchitects.com>, Danielle Sell <danielle.sell@eaglecounty.us> Hey Clair, 9/10/21, 4:15 PM Eagle County Government Mail - 3006 Frying Pan Rd OWTS Application and Design Corrections https://mail.google.com/mail/u/0?ik=da50768ddd&view=pt&search=all&permthid=thread-a%3Ar-3586028163543622290&simpl=msg-a%3Ar-5276075…7/7 This sounds good. I have another question about the filter. Usually the pump basin parts come as a package from the supplier, something similar to the Biotube ProPak (attached). This has a Biotube filter cartage. Is this sufficient for the effluent filter or would you like something like Orenco’s 4” Effluent Filter? (Also attached) If we use the 4” effluent filter we will need an additional chamber as these clog really easily in the first chamber. I have attached a cut sheet for the 3-chamber tank with the effluent filter. [Quoted text hidden] 3 attachments Biotube ProPak Pump Package NTD-BPP-1v30.pdf 458K Effluent Filter - NTD-FT-FTS-1.pdf 225K 10-1500T-3CP-F-HHa.pdf 488K Claire Lewandowski <claire.lewandowski@eaglecounty.us>Tue, Aug 24, 2021 at 9:02 AM To: Tyler Stevens <tylers@rfeng.biz> Cc: Maura Trumble <mtrumble@ccyarchitects.com>, Matthew Qual <mqual@ccyarchitects.com>, Danielle Sell <danielle.sell@eaglecounty.us> Hi Tyler, Yes, the biotube propak package is a good product for filtering effluent before the pump and counts towards filtering before the field. And yes, if you don't use that you would need the three comp tank and put the effluent filter between the second and third compartment. [Quoted text hidden] SITE LOCATION3006 FRYING PAN ROAD5.00 ACRES ±ZONING: RESOURCEC1COVERCOFFMAN'S CORNER3006 FRYING PAN RD.EAGLE COUNTY, COLORADOCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS C2GENERALCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. 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EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS XEC4EROSION CONTROLCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS C5EROSION CONTROLDETAILSCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS C6SITE DETAILSCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS XEC7SITE PLANCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS C8DRIVEWAY P&PCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS oeoeoeoeoeoeoeoeC9FIRE ACCESS P&PCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS XXXEC10DRY HYDRANT P&PCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS C11FIRE TANK DETAILS-1CHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS C12FIRE TANK DETAILS-1CHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS oeoeECHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS C13GRADING C14EAST STORM DRAINCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS C15WEST STORM DRAINCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS C16DRAINAGECHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS oeoeoeoeEC17OWTS SYSTEMCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS Kbi x···*Service contracts available for maintenance············C18OWTS DETAILSCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24NOT FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO 1 PERMIT SET 7/2/2021 TRS XC7SITE PLANCHECKED BY:#DESCRIPTION DATE DRAWN BYCONSTRUCTION DRAWN BY:JOB #:2021-24FORTRSRBGROARING FORK ENGINEERING 592 HIGHWAY 133 CARBONDALE COLORADO, 81623 PH: (970)340-4130 F:(866)876-5873 COFFMAN'S CORNER 3006 FRYING PAN RD. EAGLE COUNTY , COLORADO TRSSITE PLAN UPDATE 05/16/20232 3 4 5 6 7 8 9 10 TRSCHANGE ORDER NO.6 06/20/2023Any depiction of the 200 Foot Railroad Rights of Way hereon is for illustrationpurposes only, in support of Owner's development applications with EagleCounty. Owner believes the Frying Pan Road Right of Way is 33 feet wide andreserves all rights and claims regarding the same.