Loading...
HomeMy WebLinkAboutEngineer's Design Plan`129 Cains Lane Carbondale, CO 81623 970.309.5259 carla.ostberg@gmail.com June 24, 2024 Project No. C1895 Sherri Brown Sherbobrown@gmail.com Subsurface Investigation and Onsite Wastewater Treatment System Design 2-Bedroom Accessory Dwelling Unit (ADU) 333 CR 342 Garfield County, Colorado Sherri, CBO Inc. performed a subsurface investigation and completed an onsite wastewater treatment system (OWTS) design for the subject residence. The 35-acre property is located outside of Silt, in an area where OWTSs and wells are necessary. Legal Description: Section: 23 Township: 7 Range: 92 A TR IN THE N2 CONT. 35.0 AC Parcel ID: 2401-232-00-229 SITE CONDITIONS The property is currently developed with a 3-bedroom residence. The residence is served by an existing OWTS documented by Individual Sewage Disposal System (ISDS) Permit 3939 documents the system. A 2-bedroom Accessory Dwelling Unit (ADU) is proposed. The OWTS design outlined in this letter will serve the proposed ADU. The proposed ADU will be served potable water from a private well on the property. The well is located greater than 50-feet from the proposed septic tank and 100-feet from the proposed soil treatment area (STA). The water line will not come within 10-feet of the proposed septic tank or 25-feet from the proposed STA. The proposed soil treatment area (STA) location is in an area previously utilized as a cow pasture. There should be no traffic or staging of material over the future STA site to avoid compaction of soils prior to construction of the STA. Page 2 Looking east Looking west SUBSURFACE We have researched soils in the area through USGS Web Soil Survey. The report is enclosed. The area of the proposed STA is identified by map unit symbol 69. The map unit name is Vale Silt Loam, 6 to 12% slopes. This alluvial fan consists of soils with cobbles. Typical soil profile from 0 to 7-inches consist of silt loam, 7 to 11-inches silt loam, 11 to 26-inches silty clay loam, 26 to 60-inches silt loam. The subsurface was investigated by Kumar and Associates, Project No. 24-7-197 and is documented in a report dated April 2, 2024. Two Profile Pits excavated to a maximum depth explored of 8.5-feet. A sample was taken from Profile Pit 2 between 4.5 and 5.5-feet below grade. Soils consisted of 3% gravel, 36% sand, 31% silt, and 30% clay. Siltstone bedrock is noted between 6 and 7-feet. Kumar and Associates has classified soils as either Soil Type 3 or 3A, Clay Loam. Previous use as a cow pasture could cause compaction of the clay loam soils. A long term acceptance rate (LTAR) of 0.3 gallons per square foot will be used to design the OWTS. DESIGN SPECIFICATIONS Design Calculations: Average Design Flow = 75 GPD x 2 people/bedroom x 2 Bedrooms = 300 GPD LTAR = 0.3 GPD/SF 300 GPD / 0.3 GPD/SF = 1000 SF x 1.0 (gravity trenches) x 0.7 (chambers) = 700 SF The OWTS design is based on 2-bedrooms. An average daily wastewater flow of 300 GPD will be used. For the purposes of this OWTS design, Benchmark Elevation has been established as 100’ (Finished Floor). CBO Inc. should be notified of any discrepancies or problems with grade elevations of proposed components during installation of the OWTS. OWTS Component Minimum Elevation Primary Tank Inlet Invert Approximate horizontal distance 12’ / min. 2% fall / min. 3” fall Distribution Box Approximate horizontal distance 25’ / min. 1% fall / min. 3.125” fall Infiltrative Surface Approximate horizontal distance 36’ to furthest trench / min. 1% fall to STA / min. 4.5” fall *Elevations are based upon standard OWTS installation practices. Component elevations may change during installation due to site conditions. Minimum grade refers to piping between components. Page 3 The 4-inch SDR-35 sewer line exiting the residence must have a double-sweep clean out and a minimum 2% grade to the septic tank. The system installation must include a 1000-gallon, two-compartment Valley Precast concrete septic tank with an Orenco® Biotube effluent filter on the outlet tee. Risers must bring the manhole lids to grade for access. If more than one riser is added to the septic tank, an extension handle must be installed on the effluent filter. Any state-approved poly septic tank may be substituted; however, given the clay content of the native soils, imported backfill material may be required depending on installation specifications of the septic tank manufacturer. Effluent will gravity flow to a distribution box, and then to four gravelless chamber trenches. The distribution box must be accessible from grade and must have flow equalizers, or similar product, installed on each outlet pipe in the distribution box to assure equal flow to each trench. Each trench will consist of 15 ‘Quick 4’ Standard Plus Infiltrator® chambers for a total of 60 chambers and 720 square feet of infiltrative area. There must be at least 4-feet of undisturbed soil between each trench. Inspection ports must be installed at the beginning and end of each trench. Ports may be cut to grade and placed in sprinkler boxes for access. If use of the area surrounding the proposed ADU continues to be a cow pasture, we recommend fencing off the entire OWTS to assure heavy livestock does not impact the OWTS components. COMPONENT SPECIFICATIONS The component manufacturers are typical of applications used by contractors and engineers in this area. CBO Inc. must approve alternative components prior to installation of the OWTS. Requests must be submitted, in writing, to our office for approval prior to installation. Component technical data sheets are available upon request. COMPONENT MANUFACTURER MODEL NO. COMMENTS Septic Tank Valley Precast Item # 1000T-2CP 1000-gallon, two- compartment concrete septic tank Effluent Filter Orenco® 4” diameter full size filter Tank Risers and Lids Orenco® Double-walled PVC Risers and Lids (24” diameter) Distribution Box Polylok Distribution box, risers, lid, flow equalizers (4) Chambers Infiltrator® Plus Standard Low Profile 60 ‘Quick 4’ Low Profile Construction must be according to the jurisdiction’s adopted On-Site Wastewater Treatment System Regulations, the OWTS Permit, and this design. PERMIT APPLICATION INSTRUCTIONS An OWTS Permit Application must be submitted to Garfield County Environmental Health Department. https://www.garfield-county.com/environmental-health/filesgcco/sites/16/OWTS-Application-Complete- Packet-Dec.-2019.pdf. If the OWTS Permit Application will be submitted with a Building Permit Application, it should be submitted directly to Garfield County Building Department. Page 4 All questions regarding permit submission can be directed to Garfield County Environmental Health Department, 970-945-6614 x8150. INSTALLATION CONTRACTOR CBO Inc. expects that the installer be experienced and qualified to perform the scope of work outlined in this design. The installer must review this design thoroughly and coordinate with our office in advance of installation. Any additional conditions in this design or county permit must be completed and documented prior to final approval of the OWTS installation. Communication between the installer and this office is expected throughout the installation. INSTALLATION OBSERVATIONS CBO Inc. must view the OWTS during construction. The OWTS observation should be performed before backfill, after placement of OWTS components. Septic tanks, distribution devices, pumps, dosing siphons, and other plumbing, as applicable, must also be observed. CBO Inc. should be notified 48 hours in advance to observe the installation. In an effort to improve the accuracy of the record drawing, we request that the installer provide a sketch of the installation, including path of the sewer lines, water line installation (if applicable), septic tank location, STA location, and measurements from building corners or another fixed objects on the property. This sketch is most easily provided on Sheet W2.0 of the OWTS Design Packet. Photographs of the installation and final cover are also requested to supplement our installation documentation. REVEGETATION REQUIREMENTS An adequate layer of good quality topsoil capable of supporting revegetation shall be placed over the entire disturbed area of the OWTS installation. A mixture of native grass seed that has good soil stabilizing characteristics (but without taproots), provides a maximum transpiration rate, and competes well with successional species. No trees or shrubs, or any vegetation requiring regular irrigation shall be placed over the STA. Until vegetation is reestablished, erosion and sediment control measures shall be implemented and maintained on site. The owner of the OWTS shall be responsible for maintaining proper vegetation cover. OPERATION INFORMATION AND MAINTENANCE The property owner shall be responsible for the operation and maintenance of each OWTS servicing the property. The property owner is responsible for maintaining service contracts for manufactured units, alternating STAs, and any other components needing maintenance. Geo-fabrics or plastics should not be used over the STA. No heavy equipment, machinery, or materials should be placed on the backfilled STA. Machines with tracks (not wheels) should be used during construction of the STA for better weight distribution. Livestock should not graze on the STA. Plumbing fixtures should be checked to ensure that no additional water is being discharged to OWTS. For example, a running toilet or leaky faucet can discharge hundreds of gallons of water a day and harm a STA. If an effluent filter or screen has been installed in the OWTS, we recommend this filter or screen be cleaned annually, or as needed. If the OWTS consists of a pressurized pump system, we recommend the laterals be flushed annually, or as needed. The homeowner should pump the septic tank every two years, or as needed gauged by measurement of solids in the tank. Garbage disposal use should be minimized, and non-biodegradable materials should not be placed into the OWTS. Grease should not be placed in household drains. Loading from a water softener Page 5 should not be discharged into the OWTS. No hazardous wastes should be directed into the OWTS. Mechanical room drains should not discharge into the OWTS. The OWTS is engineered for domestic waste only. ADDITIONAL CONSTRUCTION NOTES If design includes a pump, weep holes must be installed to allow pump lines to drain to minimize risk of freezing. The pump shall have an audible and visual alarm notification in the event of excessively high- water conditions and shall be connected to a control breaker separate from the high-water alarm breaker and from any other control system circuits. The pump system shall have a switch so the pump can be manually operated. Excavation equipment must not drive in the excavation of the STA due to the potential to compact soil. Extensions should be placed on all septic tank components to allow access to them from existing grade. Backfill over the STA must be uniform and granular with no material greater than minus 3-inch. LIMITS: The design is based on information submitted. If soil conditions encountered are different from conditions described in report, CBO Inc. should be notified. All OWTS construction must be according to the county regulations. Requirements not specified in this report must follow applicable county regulations. The contractor should have documented and demonstrated knowledge of the requirements and regulations of the county in which they are working. Licensing of Systems Contractors may be required by county regulation. Please call with questions. Sincerely, CBO Inc. Carla Ostberg, MPH, REHS 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 April 2, 2024 Sherri Brown 333 County Road 342 Silt, Colorado 81652 sherbobrown@gmail.com Project No. 24-7-197 Subject: Subsoil Study for Foundation Design and Septic Disposal System Feasibility, Proposed Accessory Dwelling Unit, 333 County Road 342, Silt, Colorado Dear Sherri: As requested, Kumar & Associates, Inc. performed a subsoil study for foundation design and septic disposal feasibility at the subject site. The study was conducted in general accordance with our agreement for geotechnical engineering services to you dated March 15, 2024. The data obtained and our recommendations based on the proposed construction and subsurface conditions encountered are presented in this report. Evaluation of potential geologic hazard impacts on the site are beyond the scope of this study. Proposed Construction: The proposed accessory dwelling unit (ADU) will be a one-story wood-frame structure located on the site in the area of the pits shown on Figure 1. Ground floors are assumed to be structural over crawlspace or slab-on-grade. Cut depths are expected to range between about 2 to 4 feet. Foundation loadings for this type of construction are assumed to be relatively light and typical of the proposed type of construction. The septic disposal system is proposed to be located south and east of the proposed residence near Profile Pits 1 and 2. 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 an open pasture at the time of our field exploration. The proposed building area is a non-irrigated pasture. The ground surface was sloping down to the east at a grade of between 5 and 10 percent. The pasture had been recently tilled and vegetation consisted of scattered grass and weeds. The West Divide Creek Ditch is about 120 feet west and 8 feet above the proposed building area. The ditch is unlined and we understand generally only runs annually during periods of snowmelt. Subsurface Conditions: The subsurface conditions at the site were evaluated by excavating one exploratory pit in the building area and two profile pits in the septic disposal area at the approximate locations shown on Figure 1. The logs of the pits are presented on Figure 2. The subsoils encountered, below about 1 foot of topsoil, consist of medium stiff to very stiff, sandy silt and clay to between 5½ and 7 feet deep where medium hard to hard, siltstone bedrock was - 2 - Kumar & Associates, Inc. ® Project No. 24-7-197 encountered to the maximum excavated depth of 8½ feet. Results of swell-consolidation testing performed on relatively undisturbed samples of sandy silt and clay soil and siltstone bedrock, presented on Figure 4, indicate low compressibility under existing moisture conditions and light loading and a minor expansion potential when wetted. Results of a gradation analysis performed on a sample of clay loam obtained from the site are presented on Figure 5. The laboratory test results are summarized in Table 1. No free water was observed in the pits at the time of excavation and the soils and bedrock were slightly moist. Foundation Recommendations: Considering the subsoil conditions encountered in the exploratory pits and the nature of the proposed construction, we recommend spread footings placed on the undisturbed natural soil designed for an allowable bearing pressure of 2,000 psf for support of the proposed residence. The soils tend to compress or expand after wetting under load and there could be some post-construction foundation settlement. Footings should be a minimum width of 18 inches for continuous walls and 2 feet for columns. The topsoil and loose disturbed soils encountered at the foundation bearing level within the excavation should be removed and the footing bearing level extended down to the undisturbed natural soils. We should observe the completed foundation excavation to confirm suitable bearing conditions. Exterior footings should be provided with adequate cover above their bearing elevations for frost protection. Placement of footings at least 36 inches below the exterior grade is typically used in this area. Continuous foundation walls should be well 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 55 pcf for the on-site soil as backfill, excluding organics and rock larger than 6 inches. Floor Slabs: The natural on-site soils, exclusive of topsoil, can be used to support lightly loaded slab-on-grade construction with a risk of movement mainly if the bearing soils are wetted. 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 relatively well graded sand and gravel such as CDOT Class 6 base course should be placed beneath slabs for support. This material should consist of minus 2-inch aggregate with less than 50% passing the No. 4 sieve and less than 12% 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 or imported granular material devoid of vegetation, topsoil and oversized rock. - 3 - Kumar & Associates, Inc. ® Project No. 24-7-197 Underdrain System: Although free water was not encountered during our exploration, it has been our experience in the area where there are clay soils and bedrock is shallow 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 and crawlspace areas deeper than about 4 feet, be protected from wetting and hydrostatic pressure buildup by an underdrain system. A perimeter drain around shallow crawlspace areas may not be needed with adequate compaction of foundation wall backfill and positive slope away from foundation walls. If installed, the drains should consist of rigid perforated PVC 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 ½% 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 and covered with filter fabric such as Mirafi 140N or 160N. Surface Drainage: The following drainage precautions should be observed during construction and maintained at all times after the ADU has been completed: 1) Inundation of the foundation excavations and underslab areas should be avoided during construction. Drying could increase the expansion potential of the soils. 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. 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 will be needed uphill to direct surface runoff around the ADU. 4) Roof downspouts and drains should discharge well beyond the limits of all backfill. 5) Landscaping which requires regular heavy irrigation should be located at least 10 feet from the building. Consideration should be given to the use of xeriscape to limit potential wetting of soils below the building caused by irrigation. OWTS Testing: Two profile pits were dug at the locations shown on Figure 1 to evaluate the feasibility of an infiltration septic disposal system at the site. The soils exposed in the profile pits are similar to those exposed in Pit 1 shown on Figure 2 and consist of clay loam to between 6 and 7 feet deep where siltstone bedrock was encountered to the maximum excavated depth of 8½ feet. Based on the subsurface conditions encountered, the tested area should be suitable for Kumar & Associates Kumar & Associates Kumar & Associates Kumar & Associates 1 MIN. 4 MIN.19MIN.15 MIN.60MIN.#325 #140 3/4"3/8"1 1/2"3"5"6"8" DIAMETER OF PARTICLES IN MILLIMETERS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS SIEVE ANALYSIS TIME READINGS HYDROMETER ANALYSIS #4#10#18#35#60 7 HR 45 MIN. 24 HR. 0 10 20 30 40 50 100 90 80 70 60 50 60 70 80 90 100 0 10 20 30 40 20315276.237.519.09.54.752.001.00.500.025.106.045.019.009.005.002.001 SILT COBBLESLARGE GRAVEL MEDIUMCOARSEMEDIUMV. FINE SANDCLAY FINE V. COARSE SMALL USDA SOIL TYPE: GRAVEL %SILT %CLAY % FROM:Profile Pit 2 @ 4.5'-5.5' 3 36 30SAND %31 Clay Loam Kumar & Associates TABLE 1 SUMMARY OF LABORATORY TEST RESULTS Project No. 24-7-197 SAMPLE LOCATION NATURAL MOISTURE CONTENT NATURAL DRY DENSITY GRADATION USDA SOIL TEXTURE SOIL TYPE PIT DEPTH GRAVEL SAND SILT&CLAY GRAVEL SAND SILT CLAY (ft) (%) (pcf) (%) (%) (%) (%) (%) (%) (%) 1 3 7.2 107 Sandy Silt and Clay 4 10.1 84 Sandy Silt and Clay Profile Pit 2 4½ - 5½ 10.9 3 36 31 30 Clay Loam 6½ 7.5 121 Siltstone Soil Map—Rifle Area, Colorado, Parts of Garfield and Mesa Counties Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/24/2024 Page 1 of 3 43 6 8 4 3 0 43 6 8 5 0 0 43 6 8 5 7 0 43 6 8 6 4 0 43 6 8 7 1 0 43 6 8 7 8 0 43 6 8 3 6 0 43 6 8 4 3 0 43 6 8 5 0 0 43 6 8 5 7 0 43 6 8 6 4 0 43 6 8 7 1 0 43 6 8 7 8 0 272900 272970 273040 273110 273180 273250 273320 273390 273460 273530 272900 272970 273040 273110 273180 273250 273320 273390 273460 273530 39° 26' 19'' N 10 7 ° 3 8 ' 2 0 ' ' W 39° 26' 19'' N 10 7 ° 3 7 ' 5 2 ' ' W 39° 26' 6'' N 10 7 ° 3 8 ' 2 0 ' ' W 39° 26' 6'' N 10 7 ° 3 7 ' 5 2 ' ' W N Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84 0 100 200 400 600 Feet 0 40 80 160 240 Meters Map Scale: 1:3,020 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Rifle Area, Colorado, Parts of Garfield and Mesa Counties Survey Area Data: Version 16, Aug 22, 2023 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Aug 25, 2021—Sep 5, 2021 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Soil Map—Rifle Area, Colorado, Parts of Garfield and Mesa Counties Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/24/2024 Page 2 of 3 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 7 Ascalon-Pena complex, 6 to 25 percent slopes 0.8 2.5% 69 Vale silt loam, 6 to 12 percent slopes 29.7 90.4% 70 Vale silt loam, 12 to 25 percent slopes 2.3 7.1% Totals for Area of Interest 32.9 100.0% Soil Map—Rifle Area, Colorado, Parts of Garfield and Mesa Counties Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/24/2024 Page 3 of 3 Rifle Area, Colorado, Parts of Garfield and Mesa Counties 69—Vale silt loam, 6 to 12 percent slopes Map Unit Setting National map unit symbol: jnz7 Elevation: 5,000 to 7,200 feet Farmland classification: Farmland of statewide importance Map Unit Composition Vale and similar soils:90 percent Minor components:10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Vale Setting Landform:Alluvial fans, benches, mesas Down-slope shape:Linear, convex Across-slope shape:Linear, convex Parent material:Calcareous eolian deposits Typical profile H1 - 0 to 7 inches: silt loam H2 - 7 to 11 inches: silt loam H3 - 11 to 26 inches: silty clay loam H4 - 26 to 60 inches: silt loam Properties and qualities Slope:6 to 12 percent Depth to restrictive feature:More than 80 inches Drainage class:Well drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat):Moderately high (0.20 to 0.60 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Calcium carbonate, maximum content:15 percent Maximum salinity:Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water supply, 0 to 60 inches: High (about 10.5 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: R048AY292CO - Deep Loam Hydric soil rating: No Map Unit Description: Vale silt loam, 6 to 12 percent slopes---Rifle Area, Colorado, Parts of Garfield and Mesa Counties Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/24/2024 Page 1 of 2 Minor Components Morval Percent of map unit:10 percent Hydric soil rating: No Data Source Information Soil Survey Area: Rifle Area, Colorado, Parts of Garfield and Mesa Counties Survey Area Data: Version 16, Aug 22, 2023 Map Unit Description: Vale silt loam, 6 to 12 percent slopes---Rifle Area, Colorado, Parts of Garfield and Mesa Counties Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/24/2024 Page 2 of 2 9,028 1,504.7 Map Viewer This product is for informational purposes and may not have been prepared for, or be suitable for legal, engineering, or surveying purposes. Users of this information should review or consult the primary data and information sources to ascertain the usability of the information. 7,0161: Feet1,1690 Legend 585 Notes Location 1,169 Date Prepared: 6/24/2024 4:54:00 PM Well Constructed Final Permit Ground Water Geophysical Log Confluence Point Source Water Route Framework County 333 CR 342 Legend 333 Co Rd 342 600 ft N ➤➤ N Image © 2024 A irbus Image © 2024 A irbus Image © 2024 A irbus V M+*1u..2«I+ N'.aa,r, GARFIELD COUNTY BUILDING AND SANITATION DEPARTMENT 109 8th Street Suite 303 Glenwood Springs, Colorado 81601 Phone (303) 945-8212 INDIVIDUAL SEWAGE DISPOSAL PERMIT PROPERTY Owner's NameNP.AQ($YLfU System Location 0333 Legal Description of Assessor's Parcel No. SYSTEM DESIGN Permit NE 3 9 3 Assessor's Parcel No. 1000 Present Address 590/—a:7 66—aa9 This does not constitute a building or use permit. Phones” J /Z1 a7aA Septic Tank Capacity (gallon) Other Percolation Rate (minutes/inch) Number, of Bedrooms (or other) v Required Absorption Area - See Attached µ, i / 3 2t = Special Setback Requirements: Date - 6 -6 if Inspector /06_4 it // 7-P-, tZ 6( FINAL SYSTEM INSPECTION AND APPROVAL (as installed) Call for Inspection (24 hours notice) Before Covering Installation System Installer Septic Tank Capacity / 000 Septic Tank Manufacturer or Trade Name Septic Tank Access within 8" of surface Absorption Area ev Absorption Area Type and/or Manufacturer or Trade Name 4/44, 4 Adequate compliance with County and State regulations/ requirements Other Date ! / G `d/ Inspector RETAIN WITH RECEIPT RECORDS AT CONSTRUCTION SITE 3 CONDITIONS: 1. All installation must comply with all requirements of the Colorado State Board of Health Individual Sewage Disposal Systems Chapter 25, Article 10 C.R.S. 1973, Revised 1984. • 2. This permit is valid only for connection to structures which have fully complied with County zoning and building requirements. Con- nection to or use with any dwelling or structures not approved by the Building and Zoning office shall automatically be a violation or a i requirement of the permit and cause for both legal action and revocation of the permit. 3. Any person who constructs,alters, or installs an individual sewage disposal system in a manner which involves a knowing and material variation from the terms or specifications contained in the application of permit commits a Class I, Petty Offense ($500.00 fine — 6 ' f months in jail or both). 3 White - APPLICANT Yellow - DEPARTMENT INDIVIDUAL SEWAG DISPOS%, PLICATION b -K Olsen f- tSeygri OWNER - f d (2 i , rcl e ru,c e s _L IJ cam• ADDRESSaq_C-4d 3567 S/its/65A PHONE_9 7D -5S76 -z 7,? CONTRACTOR o w"le /- ADDRESS ADDRESS PHONE PERMIT REQUEST FOR NEW INSTALLATION ( ) ALTERATION ( ) REPAIR Attach separate sheets or report showing entire area with respect to surrounding areas, topography of area, habitable building, location of potable water wells, soil percolation test holes, soil profiles in test holes (See page 4). LOCATION OF PROPOSED FACILIITTY: Near what City of Town J ) Size of Lot 5 Legal Description or Address C K 3 a__ WASTES TYPE: 4 DWELLING ( ) TRANSIENT USE COMMERCIAL OR INDUSTRIAL ( ) NON-DOMESTIC WASTES OTHER -DESCRIBE BUILDING OR SERVICE TYPE: Number of Bedrooms 3 Number of Persons z Garbage Grinder (>0 Automatic Washer ( Dishwasher SOURCE AND TYPE OF WATER SUPPLY: 09 WELL ( ) SPRING ( ) STREAM OR CREEK If supplied by Community Water, give name of supplier: DISTANCE TO NEAREST COMMUNITY SEWER SYSTEM: A/A Was an effort made to connect to the Community System? /VA A site plan is required to be submitted that indicates the following MINIMUM distances: Leach Field to Well: 100 feet Septic Tank to Well: 50 feet Leach Field to Irrigation Ditches, Stream or Water Course: 50 feet Septic System (septic tank & disposal field) to Property Lines: 10 feet YOUR INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT WILL NOT BE ISSUED WITHOUT A SITE PLAN. GROUND CONDITIONS: Depth to first Ground Water Table Percent Ground Slope TYPE OF INDIVIDUAL SEWAGE DISPOSAL SYSTEM PROPOSED: 1 SEPTIC TANK ( ) AERATION PLANT ( ) VAULT VAULT PRIVY ( ) COMPOSTING TOILET ( ) RECYCLING, POTABLE USE PIT PRIVY ( ) INCINERATION TOILET ( ) RECYCLING, OTHER USE CHEMICAL TOILET( ) OTHER -DESCRIBE FINAL DISPOSAL BY: Cv) ABSORPTION TRENCH, BED OR PIT ( ) EVAPOTRANSPIRATION UNDERGROUND DISPERSAL ( ) SAND FILTER ABOVE GROUND DISPERSAL ( ) WASTEWATER. POND OTHER -DESCRIBE WILL EFFLUENT BE DISCHARGED DIRECTLY INTO WATERS OF THE STATE? 4/7) PERCOLATION TEST RESULTS: (To be completed by Registered Professional Engineer, if the Engineer does the Percolation Test) Minutes per inch in hole No. 1 Minutes per inch in hole No. 3 Minutes per inch in hole No. 2 Minutes per inch in hole No. _ Name, address and telephone of RPE who made soil absorption tests: Name, address and telephone of RPE responsible for design of the system: Applicant acknowledges that the completeness of the application is conditional upon such further mandatory and additional tests and reports as may be required by the local health department to be made and furnished by the applicant or by the local health department for purposed of the evaluation of the application; and the issuance of the permit is subject to such terms and conditions as deemed necessary to insure compliance with rules and regulations made, information and reports submitted herewith and required to be submitted by the applicant are or will be represented to be true and correct to the best of my knowledge and belief and are designed to be relied on by the local department of health in evaluating the same for purposes of issuing the permit applied for herein. I further understand that any falsification or misrepresentation may result in the denial of the application or revocation of any permit granted based upon said application and in legal action for perjury as provided by law. Signed /kit)? h1/Qjc CJ Date 00— / /, - 03 PLEASE DRAW AN ACCURATE MAP TO YOUR PROPERTY!! Franlf 54e1•4 OG (a y zgg Gni/ Copy ny S 0..scnra7 -Fpr occu+ 11,41e-1 Orve wny m 2 0 g 5 3 X11 Pit 181 S 'Ili o0 rerce a V O tc 1: i cU 111 o sr, t) Ter,3 rr r 1 Li t L f 0 . 4r 1 an -24 :1 r yII Carmr Station 23 ad rear - 00 eon Replaced tirh 3•rr2' Alea. n,pt Caa rr. 6' bila. read surface n 5 0 0 N.59'07'55'2, 1334.71 11.62'07.55'E, 1336.71 µ.89'09'27'E. 1333. 51 5.00'16' 31' E. 1323. 60 n Os ••J t. r sGsi sane, Ca 551 6d.r i 1.3. mart 30 f LC. N.59.09 -37' E. LH. 5 51 1 time t mfg. 4- Lu - Bol NI24 Car3er SeerionF.e. 6' Spiie bolas Feld: striae*. Rnalgc.d all. 3-I/ 2' A11.. pip. L Cop L. J. Tie: N.39'iN'I6 E. 2565. 02 11.0313'011' 3. fir' 5.1 eater 3Co 1 l S - SIP II.49III. b. 9 t...k 0$ 5. 0...' 6 r saie.is M..a, a. a Eaaglfee 2 51 11.89'09'27'E. 1333. 51 01 t N.69511'02'2. 1330. 73 v W1/4 C Seel ia. 23 Fed pipe / le.. Cap 1.5. eat I. Sible T • landleestSesaa 0. Ea.N11u 2 r 0 0 9 b• 35. 456 SEI/4M11/ 4 sae l.'a'.r lNir Acres Nii9.fl.e 8 var. O..N b• i 6. ,el Cau m Nla Gerrity 0 Cnsr 1. - to 3-09. 0 I! t Set rItar & Car1.11/111'31-E..1.11/111'31-E-E 901. 911.3. W11. e/O. d P 09.10'.- 2 a 1:5. 64 _ dOrdiev' 011. 41 z la: ... kw s.i war 41-t:719:17:1897i. ft 2661, 46 1 sinews 1. w0 Olad.bGrua. lad M ..l1 .d Can is CNpa7G 0 I :- 2 Form No. OFFICE OF THE STATE ENGINEER GWS -25 COLORADO DIV' )N OF WATER RESOURCES X818 Centennial 81dg.. 1313 Sherman St.. Deme+, Colorado 80203 1303) 866-3581 APPLICANT JANE REED 4666 COUNTY ROAD 311 NEW CASTLE, CO 81647 970)876-0229 PERMIT TO USE API EXISTING WELL Farce 1095 WELL PERMIT NUMBER 219 9 0 3W DIV. 5 CNTY. 23 WD 45 DES. BASIN MD tot: Block: Fling: Subdiv: APPROVED WELL LOCATION GARFIELD COUNTY NE 114 NW 1/4 Section 23 Twp 7 S Rng 92 W 6th P.M. DISTANCES FROM SECTION LINES 800 Ft. from NORTH Section Line 2600 Ft. from WEST Section Line ISSUANCE OF THIS PERMIT DOES NOT CONFER A WATER RIGHT CONDITIONS OF APPROVAL 1) This well shall be used in such a way as to cause no material injury to existing water rights. The issuance of the permit does not assure the applicant that no injury will occur to another vested water right or prelude another owner of a vested water right from seeking relief in a civil court action. 2) The construction of this well shall be in compliance with the Water Well Construction Rules 2 CCR 402-2, unless approval of a variance has been granted by the State Board of Examiners of Water Well Construction and Pump Installation Contractors in accordance with Rule 18. 3) Approved pursuant to CRS 37-92-602(31(b)(111(A) as the only well on a tract of land of 35.5 acres described as that portion of the NE Yr, NW ys, Sec. 23, Twp. 7 S, Rng. 92 W, 6th P.M., Garfield County. Reference attached exhibit A. 4) Approved for the installation of a pump in, and the use of, an existing well, constructed on 7/10/99, to a depth of 137 feet, under monitoring hole notice MH -36507, acknowledged 7/8/99. 5) The use of ground water from this well is limited to fire protection, ordinary household purposes inside up to 3 single family dwellings, the irrigation of not more than one (1) acre of home gardens and (awns and the watering of domestic animals. 6) The maximum pumping rate shall not exceed 15 GPM. 7) The return flow from the use of this well must be through an individual waste water disposal system of the non -evaporative type where the water is returned to the same stream system in which the well is located. 8) This well shall be located not more than 200 feet from the location specified on this permit. APPROVED SAP stn Enalm. SFP 0 21999 Cfre 9/'/9 2001 EXPIRATION DATESEr 41 LEGAL DESCRIPTION THE NE 114 OF SECTION 23, A DISTANCE OF 1234.75 FEET TO A POINT IN THE EASTERLY RIGHT OF WAY FENCELINE OF COUNTY ROAD 3-C: THENCE NORTH AND ALONG SAID EASTERLY RIGHT OF WAY FENCELINE A DISTANCE OF 1234.75 FEET TO THE POINT OF BEGINNING. PARCEL C PARCEL 2 A TRACT OF LAND IN THE N1/2 OF SECTION 23, TOWNSHIP 7 SOUTH, RANGE 92 WEST OF THE 6TH P.M. AND BEING MORE PARTICULARLY DESCRIBED AS FOLLOWS: BEGINNING AT A POINT ON THE WESTERLY RIGHT OF WAY FENCE OF COUNTY ROAD 342 FROM WHICH THE SOUTH QUARTER CORNER OF SECTION 23, TOWNSHIP 7 SOUTH, RANGE 92 WEST OF THE 6TH P.M. BEARS S. 00 DEGREES 31' 20" E. A DISTANCE OF 2805.74 FEET: WITH ALL BEARINGS HEREIN BEING RELATIVE TO THE NORTH/SOUTH CENTERLINE OF SAID SECTION 23 BEING HELD TO BEAR DUE NORTH; THENCE N. 00 DEGREES 04' 08" W. AND ALONG SAID WESTERLY RIGHT OF WAY FENCE A DISTANCE OF 902.95 FEET; THENCE N. 89 DEGREES 10' 09' E. AND CROSSING COUNTY ROAD 342 A DISTANCE OF 415.66 FEET; THENCE N. A DISTANCE OF 361.50 FEET; THENCE S. 89 DEGREES 10' 09" W. A DISTANCE OF 416.09' FEET CROSSING COUNTY ROAD 342 TO A POINT IN THE WESTERLY RIGHT OF WAY FENCE; THENCE N. 00 DEGREES 04' 08" W. AND FOLLOWING SAID FENCE A DISTANCE OF 789.76 FEET; THENCE S. 89 DEGREES 09' 27" W. AND ALONG THE NORTH LINE OF THE SOUTH 880 FEET OF EVEN WIDTH OF THE NEI/4NE1/4 SAID SECTION 23, A DISTANCE OF 180.48 FEET TO A FENCELINE IN PLACE; THENCE S. 86 DEGREES 22' 01" W. AND FOLLOWING SAID FENCE FOR A DISTANCE OF OF 531.70 FEET TO A POINT IN THE CENTERLINE OF THE WEST DIVIDE CREEK DITCH: THE FOLLOWING TWENTY-SEVEN (27) COURSES ARE ALONG THE CENTERLINE OF SAID WEST DIVIDE CREEK DITCH: S. 14 DEGREES 08' 49" E. 124.02 FEET: S. 15 DEGREES 01' 13" W. 32.23 FEET: S. 00 DEGREES 44' 57" E. 47.43 FEET: S. 11 DEGREES 02' 58" E. 85.14 FEET: S. 30 DEGREES 42' 06" E. 75.40 FEET: S. 46 DEGREES 27' 36' E. 21739 FEET: S. 18 DEGREES 31' 13" E. 46.38 FEET: S. 12 DEGREES 44' 55" W. 202.71 FEET: S. 03 DEGREES 48' 26" E. 157.01 FEET: S. 22 DEGREES 45' 58" E. 46.92 FEET: S. 31 DEGREES 48' 31" E. 96.16 FEET: S. 04 DEGREES 25' 58" E. 88.96 FEET: S. 46 DEGREES 15' 51" W. 71.77 FEET: S. 72 DEGREES 43' 28" W. 82.61 FEET: S. 78 DEGREES 43' 29" W. 61.79 FEET: N. 85 DEGREES 50' 57" W. 89.91 FEET: N. 78 DEGREES 26' 14" W. 143.67 FEET: S. 65 DEGREES 13' 23" W. 72.48 FEET: S. 15 DEGREES 36' 10" W. 38.10 FEET: Gareld County, CO Developed by Account Number   R231170 Parcel Number   240123200229 Acres 35 Land SqFt 0 Tax Area 023 Mill Levy 60.7120 Physical Address   0   SILT 81652 Owner Address   DEXTER, BRYAN K & BROWN, SHERRI JO 333 COUNTY ROAD 342 SILT CO 81652 Total Actual Value   $850,530 Last 2 Sales Date  Price   10/20/2003  $250,000   11/20/1998  $125,000   Date created: 6/24/2024 Last Data Uploaded: 6/24/2024 2:10:40 AM 1,520 ft Overview Legend Parcels Roads Parcel/Account Numbers Owner Name Lakes & Rivers County Boundary Line