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HomeMy WebLinkAbout4.0 PC Staff Report 08.08.2001REQUEST: PC 8/8/01 PROJECT INFORMATION AND STAFF COMMENTS A request for review of a Preliminary Plan for an eleven (11) lot subdivision on sixty-six (66) acres. Request for approval of eleven (11) accessory dwelling units for a total of twenty-two (22) units. APPLICANT: Jim and Paul Luginbuhl PLANNER: Land Design Partnership ENGINEERS: High Country Engineering, Hepworth-Pawlak, Zancanella and Assoc. WILDLIFb: Beattie Natural Resources Consulting, LLC VEGETATION: Beach Environmental, LLC LOCATION: Parcel lies less than two (2) miles east of the City of Rifle along County Roads 210 and 221. Sections 11 & 2, Township 6 South, Range 93 West WA 11,R: Individual wells for each lot protected by WDWCD contract. Individual sewage disposal systems (ISDS) CR 221, "Green Lane" A/RIRD SEWER: ACCESS: EXISTING ZONING: ADJACENT ZONING: AJR/RD to the east, north and west. A/I and C/G to the south. I. RELATIONSHIP TO THE COMPREHENSIVE PLAN According to the Comprehensive Plan of 2000, this site lies in the "Outlying Residential" area. The suggested density is no more than one (1) dwelling unit per two (2) acres. Page 1 of 14 II. PROJECT INFORMATION A. Site Description: The site is bordered by CR 210 to the east and CR 221 to the south. It is separated from east Rifle by the high rock bluffs west of CR210 (Graham Mesa). Below CR 210, the slope drops dramatically to the very gently sloping irrigated hay field that comprise the vast majority of the property. The Lower Cactus Valley ditch runs parallel to CR 210. An irrigation ditch runs diagonally across the site from the northeast to the southwest and runs into a culvert under CR 221. To the west, almost entirely on the adjacent parcel, two high voltage power lines run in a north/south direction. A small wetland area exists along the southwest boundary of the property. B. Development Proposal: The applicant is proposing to divide the sixty-six (66) acre parcel into eleven (11) lots. Each lot will contain a single family home and an accessory dwelling unit for a total of twenty-two (22) residential dwelling units. All lots are served by a centrally located cul-de-sac which is 1,250 feet in length. All lots are five (5) to six (6) acres in size. The rear of each of the lots is restricted from building with the exception of small livestock shelters. The covenants allow 3 horses/cattle per lot. An extremely steep 2.4 acre area lies west of County Road 210. This area will remain as "open space" so that no development occurs on it, and it will be maintained by the Homeowners' Association. C. Adjacent Land Uses: Agricultural and residential land uses currently surround the site. Commercial uses exist to the south along Hwy 6 and are possible adjacent to the site. III. REVIEW AGENCY AND OTHER COMMENTS: Referrals of the site plan were sent to the following: A. City of Rifle: See City's staff report, page _15 . Rifle would prefer the property remain in agriculture, but recognizes the owners' right to develop the property. Rifle prefers large lot residential development over commercial/industrial development. Rifle has a concern that well water in the area is known to be of very poor quality, and may not meet drinking water standards. Rifle has also identified the possibility of well contamination by ISDS, and suggests the applicant investigate tapping into the Cottonwood Springs sewer line. B. Bookcliff Soil Conservation District: No reply was received. C. RE -2 School District: See referral sheet, page _18 . No concerns. D. Garfield County Road & Bridge: Provided the following comments at sketch plan: States an access permit that addresses drainage will be required. The R&B dept. prefers there not be any accesses from CR210 (none are proposed) and requests the fence be relocated to the r -o -w line. E. Rifle Fire Protection District: No reply was received. Phone calls were not returned. Page 2 of 14 F. Garfield County Sheriff: See memo, page 19 . Reiterates the following concerns made at sketch plan which include: 1)The cul-de-sac is over twice the allowed length. Oversizing the road radius does not eliminate concerns about the total length. 2) All roads shall be clearly marked with correct road numbers and names. 3) All street addresses shall be clearly marked and visible from the road. G. Garfield County Vegetation Management: See memo, page 20 . Notes that sulfur cinquefoil is not known to exist in the County, and that the weed management plan is acceptable. GCVM emphasizes the need to control outbreaks of Russian Olive. The Revegetation plan must assign who is responsible for implementation of the plan (either the HOA, or another party). H. Garfield County Housing Authority: Provided the following comment at the sketch plan phase: Expects the accessory dwelling units will help with the housing shortage found in Garfield County. Requests to know whether the a.d.u.'s will be deed restricted. Division of Wildlife: See letter, page 22 . Concurs with the wildlife report submitted and emphasizes the statements it contains regarding pet control, fencing, garbage, and damage caused by wildlife. The DOW notes that these recommendations are pertinent and will be beneficial to wildlife. J. CO Dept. of Public Health and Environment: No reply was received. K. CO Division of Water Resources: See letter, page 23 . States that the proposed water supply will not cause material injury to decreed water rights, and is adequate, so long as valid well permits are maintained for all wells, no expanded use of unspecified irrigation water rights occurs, and the disposition of well permit no. 208670 is resolved. L. Colorado Geological Survey: See letter, page 25 . Notes that the geologic hazards are relatively benign. The groundwater level is high and the soils are known to be very soft. High seasonal groundwater may impact the ISDS proposed. The CGS reiterates what was disclosed by the consultant: the soils could experience large settlements if they become further wetted. It is essential that the geotechnical consultant's recommendations are complied with, especially regarding drainage, water management, and site-specific foundation excavation recommendations. M. Garfield County Engineer: No reply was received. N. Garfield County Public Health Nurse: See e-mail correspondence, page _27_. Although the well test for well #2 appears adequate, all the wells should be tested after completion. The covenants are weak in the areas of trash/solid waste storage and removal, which may result in more conflicts with wildlife. IV. STAFF COMMENTS A. Comprehensive Plan: The proposal appears to generally conform to the Comp Plan, with the following possible exception:. Page 3 of 14 Goal 7.0: To ensure the provision of legal, adequate, dependable, cost effective and environmentally sound sewer and water services for new development. This goal is supported by several objectives and policies which require adequate and safe sewage disposal provisions be made prior to project approval. In cases where ISDS are proposed, the site must be proven capable to accommodate these systems. All rural development is required to show that legal, adequate, dependable, and environmentally sound water and sewage disposal facilities can be provided prior to project approval. Proposing 11 to 22 ISDS in an area with shallow groundwater and numerous wells does raise concerns regarding the above stated goals and policies. See Wastewater and Geotechnical sections of this report for further discussion. B. Zoning: A single family dwelling is a use by right in the A/R/RD zone district. Accessory dwelling units (ADU's) may be approved as part of the subdivision process as long as the applicable ADU standards are met, and as long as the units are detached (attached units fall under the definition of "two family dwelling units). The applicant should be aware of the following A/R/RD zone standards and ADU standards: Minimum Lot Area: Two (2) acres. Maximum Lot Coverage: Fifteen percent (15%). Minimum Setback: (1) Front yard: (a) arterial streets: seventy-five (75) feet from street centerline or fifty (50) feet from front lot line, whichever is greater; (b) local streets: fifty (50) feet from street centerline or twenty -eve (25) feet from front lot line, whichever is greater; (2) Rear yard: Twenty-five (25) feet from rear lot line; (3) Side yard: Ten (10) feet from side lot line, or one-half (1/2) the height of the principal building, whichever is greater. Maximum Height of Buildings: Twenty-five (25) feet. Additional Requirements: All uses shall be subject to the provisions under Section 5 (Supplementary Regulations). ADU standards: (1) The minimum lot size shall be four (4) acres containing a building site with slopes less than 40% at least two (2) acres in size. (2) The gross floor area for residential use occupancy shall not exceed 1500 sq. ft. (3) Approval from the subdivision homeowners association and/or allowed by covenant if applicable. (4) Proof of a legally adequate source of water for an additional dwelling unit. (5) Compliance with the County individual sewage disposal system regulations or proof of a legal ability to connect to an approved central sewage treatment facility. (6) Only leasehold interests in the dwelling units is allowed. Page 4 of 14 (7) That all construction complies with the appropriate County building code requirements. (A.95-076) Please note that although some of the proposed building envelopes are less than 2 acres, the flat/buildable area that exists exceeds 2 acres on each lot. [If the lots were severely constrained by slope, with less than 2 buildable acres this would be an issue. Here, it is not.] Since paragraph 24 on page 8 of the covenants references Garfield County's "a.d.u." standards, staff does not have a particular concern about compliance with said standards. C. Subdivision: The lot design appears to generally meet the standards set forth in the Subdivision Regulations, with exceptions as noted elsewhere in this report. It should be noted that corner lots (Lots 1 and 11) shall be required two front yard setbacks (see section 9:21.3). It may be advisable to increase the width of these lots. D. Geotechnical/Radiation: The application includes a report from Hepworth-Pawlak Geotechnical which states that the property is suitable for the proposed eleven (11) lot development as long as the following geologic conditions are considered: drainage, wet/soft soils, slope instability northwest of CR 210, and earthquakes. HP states some preliminary design recommendations and notes that site specific studies should be conducted for individual lot development. The preliminary recommendations include: 1. Foundations — Shallow spread footings bearing on the upper natural soils, full basements may not be feasible in some areas, underdrain systems for below grade areas. 2. Floor Slabs — Slab on grade construction, potential for settlement/heave if subsoils become wetted. 3. Underdrain System — Groundwater encountered at a shallow depth, irrigation will keep water level shallow, perched groundwater may develop, underdrain system must be provided for below -grade construction (such as retaining and basement areas). 4. Site Grading — Cut and fill should be limited (cuts to 5'-8', fills to 5'), with proper drying and compaction of soils prior to filling. 5. Surface Drainage — The grading plan should consider potential runoff from uphill slopes, water should not pond, positive drainage away from buildings should be maintained, and landscape irrigation should be limited. 6. Percolation Testing — A conventional ISDS should be feasible, although a mounded type system may be needed in shallow groundwater areas. ISDS should be designed by a civil engineer at the time of individual lot development. HP has also performed a radiation survey at the site and stated that no mitigation of the natural background levels should be required. Staff confirmed with Steve Pawlak on 7/30/01 in a telephone conversation that each of the eleven lots will be occupied by two (2) detached dwelling units, and that HP's recommendations remained the same. Section 9:12 states the following: Page 5of14 Land subject to identified natural hazards, such as falling rock, land slides, snow slides, mud flows, radiation, flooding or high water tables, shall not be platted for any use other than open space or an uninhabitable portion of a lot over two (2) acres, unless mitigation is proposed by a Colorado registered professional engineer qualified to do such design. The CGS reiterates what was disclosed by the consultant: the soils could experience large settlements if they become further wetted. It is essential that the geotechnical consultant's recommendations are complied with, especially regarding drainage, water management, and site-specific foundation excavation recommendations. Staff finds that as long as HP's and the CGS' recommendations are carefully followed, and each ISDS is designed by a Colorado licensed civil engineer, the proposal may be found to be consistent with the subdivision regulations. E. Road/Access: The proposed access to the subdivision is a road from CR 221terminating in a cul-de-sac, labeled "Native Springs Drive". Native Springs Drive is 22' wide while and about 1,200' long. The applicant claims the topography of the site prevents a reasonable secondary access or "through road". The proposed cul-de-sac has an 60' radius instead of the required minimum 50' radius in order to provide extra turning room for emergency vehicles. High Country Engineering has determined the project will result in 220 average daily trips (ADT) and that the site lies in Road Impact Study Area 4 (this is incorrect, it actually lies in area 6). The project appears to comply with the applicable road standards (Section 9:35 of the GarCo Sub. Regs.) with the exception of the excessively long dead end road. Section 9:33 states the following: 9:33: Cul-de-sacs and dead end streets may be designed under the following circumstances: A. Cul-de-sacs may be permitted provided they are not more than six hundred feet (600) in length and have a turnaround radius of not less than forty-five feet (45) from the center of the cul-de-sac to rad edge and fifty foot (50) right-of-way for residential development ... The Board may approve longer cul-de-sacs for topographical reasons and it can be proved that fire protection and emergency egress and access is provided as a part of the longer design; and The application explains that each residence will be equipped with fire sprinkler systems. 30,000 gallons of water storage will be provided in buried tanks in the center of the cul- de-sac. The covenants reference a wildland urban interface pamphlet (paragraph 41, page 12) and require sprinklers (para. 40, pg. 12). Neither the Fire District nor the Road and Bridge Department responded to a request for comments on the Preliminary Plan (although R&B commented at sketch plan). However, Page 6 of 14 the applicant has stated that the Fire District is satisfied with the extra precautions the applicant has taken. Prior to approval, this statement must be supported in writing. The Sheriff's Dept. has reiterated the following comments: 1)The cul-de-sac is over twice the allowed length. Oversizing the road radius does not eliminate concerns about the total length. 2) All roads shall be clearly marked with correct road numbers and names. 3) All street addresses shall be clearly marked and visible from the road. Prior to approval of the preliminary plan staff emphasizes again that the applicant must provide evidence of satisfaction of any concerns of the Fire District and the Sheriff's Department, as well as an access permit from Road and Bridge. The regulations also contain the following sections: 9:34 All streets are dedicated to the public but all streets will be constructed to standards consistent with these Regulations and repair and maintenance shall be the responsibility of the incorporated Homeowners Association of the subdivision. The covenants do not specifically state that assessments may be made for road maintenance, nor do they describe maintenance of the road at all. This oversight in the covenants must be corrected prior to approval of the project. One other issue regarding access is the historic agricultural access that lies along the eastern boundary of the property. This access should be removed and reclaimed since the agricultural use of the property will not be continued. F. Fire Protection: The site is located in the Rifle Fire Protection District (RFPD), who did not respond to a request for comments on the application. The sketch plan proposed about 120,000 gallons of water be stored in a pond in the center of the cul-de-sac for fire protection purposes. Staff and the Planning Commission discouraged storing water in a pond stating that buried storage was a preferred solution due to health and safety issues. The preliminary plan proposes 30,000 gallons of water storage to be buried in the center of the cul-de-sac (in three 10,000 gallon tanks). During the irrigation season, the tanks will be filled with irrigation water. Other times of year water would be purchased from some entity and hauled by truck. The sketch plan stated that water used to fill storage tanks for fire protection is exempt from the water rights priority system. Staff noted at that time that the preliminary plan must include evidence supporting this statement, such as a letter from the Division of Water Resources. Although the State Engineer's Office has written a letter of "no material injury", Staff has raised questions to the SEO that will be answered in a revised letter yet to arrive. Purchasing water from an entity (such as the City of Rifle) can not be considered a legal, adequate source of water without a perpetual contract in place. The applicant must obtain adequate legal water rights to fill the storage tanks on a perpetual year-round basis prior to approval of the application by the Board of County Page 7of14 Commissioners. G. Water: At the sketch plan phase, staff and the Planning Commission both strongly discouraged individual wells on this property, and urged the applicant to install a central water system. The preliminary plan application states three reasons for proposing individual wellls: 1) the cost of construction of a community water system is prohibitive; 2) adequate fire protection can be provided with in house sprinklers; and 3) reverse osmosis (r.o.) systems are dramatically more complex and expensive on central systems than for individual wells (r.o. systems are not proposed, but the application notes that the water is, "of such a quality that many residents may wish to install r.o. systems to enhance the quality of water for personal consumption purposes"). Eleven (11) individual wells are proposed to supply domestic water to each residential lot. Water rights to divert 9.39 acre feet have been purchased from the West Divide Water Conservation District (WDWCD) for this purpose. High Country Engineering has stated that each lot can be expected to demand approximately 720 gallons per day (g.p.d.) based on 3.5 persons per residence and 2.5 persons per a.d.u. The application also contains a water supply plan prepared by Zancanella and Associates. This report assumes all 22 residences will be occupied by 3.5 people, and that up to 500 sq. ft. of lawn will be irrigated from the domestic system. Additional irrigation water will be supplied from raw water sources. The subdivision will divert just less than 9 acre feet annually, and will actually consume just under 2 acre feet. The Native Springs well #2 was drilled in November of 2000 at a depth of 73 feet. Water was encountered at 46 feet with the static water level about 26 feet below the top of the well casing. There is about 34 feet of available drawdown. The pump test was conducted at a rate of 15 g.p.m. for a continuous 25 hour period. The maximum drawdown was 13.75 feet and the well displayed normal recovery characteristics. The water was tested for nitrates and nitrites, bacteria, and phase II and V inorganics. All levels were below those established by the Dept. of Health and no coliform bacteria was detected. It should be noted that while the water quality may meet the minimum standards, the water may have a poor taste or odor, and may be quite hard and in need of treatment. The Garfield County Public Health Nurse has requested each and every well be tested to ensure an adequate physical water supply exists for the subdivision. While it appears that a physical supply may be possible in the area, prior to approval of any final plat, all eleven (11) wells shall be drilled, and then tested for the above stated parameters, as well as dissolved solids, to prove an adequate supply of water. Staff further emphasizes the need for a radiation test since the water in the area is known to have radiation problems. If the water is in need of treatment, it shall be stated so in the covenants and on the plat. If approved, the possibility exists that 22 individual ISDS and 11 individual wells will be placed on the 66 acre property. Staff maintains the position that a central water system is Page 8of14 a much better solution than individual wells given the fact that water table is known to be shallow in the area, the water quality is known to be poor, that dealing with water contamination will be simpler with a central system and HOA oversight, and that the possibility of 22 ISDS exist. While staff realizes that other solutions may be engineered to meet technical requirements, it does not change Staff's opinion that centralizing the water system has a greater potential of ensuring public safety by reducing the chance of well/ground water contamination. The applicant has failed to convince the Staff that a central system is not feasible, and is not the best solution, given the site's inherent constraints. In addition to the domestic water available to water 500 sq. ft. of lawn or garden, the application states that raw irrigation water will be distributed by underground pipes to each lot. Each lot will need to add their own pumping system if they opt to sprinkler their property from this system. The application does not contain any evidence of the necessary legal irrigation water rights to accomplish this. Evidence of the ownership of historic irrigation water rights must be submitted prior to project approval. Furthermore, ownership must be transferred to the Homeowners' Association (HOA), who will be responsible for the maintenance and distribution of the irrigation water. Article V, Paragraph 20 of the covenants states that three (3) horse or cattle will be allowed on each lot. While the well permits allow for the watering of domestic animals, they do not allow for livestock watering. Staff has contacted the SEO for further clarification on this issue, but a response has yet to arrive. H. Wastewater: Individual sewage disposal systems (ISDS) are proposed for each lot. Said systems must be designed by an engineer, and will most likely be mounded systems, unless typical ISDS are recommended by the engineer. The sketch plan staff report noted that the Colorado Department of Public Health and Environment (CDPHE) has been concerned about the number of ISDS being approved for the area without review and analysis of the feasibility of wastewater treatment from a centralized facility. The applicant was instructed that the preliminary plan must contain further analysis of wastewater disposal options and costs. The preliminary plan contains a letter from Mr. John Schenk has stated that the Cottonwood Plant is fully committed and that capacity limits will not allow the inclusion of any additional users. Apparently no other wastewater disposal options, such as ISTS (individual sewage treatment systems) were analyzed. Staff does have a concern about the use of ISDS, mounded or otherwise, given the shallow water table in the area. However, neither the CDPHE nor the County Engineer has submitted any comments on the application. Staff is at a disadvantage without the benefit of their expertise, and thus unable to further support this position. Page 9 of 14 Wildlife: The application contains a detailed wildlife report submitted by Beattie Natural Resources Consulting, Inc. The report states that the development is expected to affect birds, small mammals, prey base for certain species, and mule deer associated with grass/hay lands. Although the quantity and distribution of wildlife may be reduced, existing wildlife species is expected to maintain a presence in the subdivision. Neither critical habitat nor migration corridors will be lost as a result of the development. The report includes a number of specific recommendations about pet control, fences, trash, hay storage, etc. which Beattie recommends be included in the covenants. The DOW concurs with the Beattie wildlife report and emphasizes the above listed -detailed recommendations it makes. The DOW notes that these recommendations are pertinent and will be beneficial to wildlife. I. Drainage: HP briefly addresses surface drainage on page 5 of the Geotechnical Report. It notes that flood potential on the alluvial fans should be considered in any drainage plan. It also notes that the potential for irrigation ditch blockage and overflow should be included in hydrologic evaluations. The application also contains a Drainage Report prepared by High Country Engineering on 4/27/00. This report states that two major ditches currently occupy and will continue to occupy the site: The Lower Cactus Valley Ditch and the Grand Valley River Ditch. Some of the lateral ditches will be re-routed. The report states that peak on site flows will be derived primarily from rainfall. The unconcentrated sheet flow and road runoff will be captured by roadside swales and irrigation ditches. All buildings should have positive drainage. Detention will not be necessary since an increase in runoff is not anticipated. Staff does not have any particular concerns about the drainage plan as long as all engineering recommendations are followed and as long as any approval includes the condition that each lot owner shall obtain a site specific grading and drainage plan prior to placement of any building improvements. The drainage plan may need revision to include provisions for ditch blockage, and to specifically address flood potential on the alluvial plans, prior to approval by the Board of County Commissioners. K. Vegetation / Noxious Weeds / Wetlands: The application contains a report prepared by Beach Environmental, LLC, which states that wetlands were encountered on Lots 9 and 11, but not within any proposed building areas. The location of the wetlands was not shown in the report, nor was it surveyed and placed on the plat. The report states that since the wetlands will not be encroached upon, no further assessment of the property is necessary. Paragraph 38 on page 11 of the covenants addresses weed and vegetation control. The Garfield County Vegetation Management office has stated that the weed management plan is acceptable. GCVM office emphasizes the need to control outbreaks of Russian Olive. While the covenants state that disturbed areas should be quickly Page 10 of 14 revegetated with weed free grass seed, they do not assign who is responsible for implementation of the plan (either the HOA, or another party). The covenants will have to be amended accordingly to ensure implementation of the revegetation plan. Staff notes that the location of the wetlands must be shown on the plat to ensure these areas are not disturbed, with a plat note stating such. As shown, a 15' wide utility and irrigation easement appears to possibly lie in the wetland area on lot 11. The lot, or easement, or both, may need to be reconfigured. As long as the GCVM office's and staff's recommendations are followed, staff does not have any particular concern regarding these issues. L Homeowners' Association / Covenants / Plat Notes: The sketch plan comments included a number of issues (including lighting, dogs, open -hearths, ditches, right to farm, road maintenance, no further division allowed, etc.) to be placed on the plat in the form of a note, and to be addressed by the covenants. Both the covenants and plat notes address these necessary issues. In addition to the other suggested changes throughout this report, staff concerns are as follows (suggested changes stricken out and in italics): 1. Plat note #4: "That all expensed street maintenance and associated expenses shall be furnished by the Native Springs Subdivision Property Owners Association, Inc., not by the County of Garfield.". 2. Plat note #7: "The individual lot owners shall be responsible for control of noxious weeds on their property. The Native Springs Subdivision Property Owners Association, Inc., shall be responsible for control of noxious weeds on all common areas." 3. Plat note #13 states ownership of the mineral rights lies with the Greens. This note, and the covenants, should be expanded to disclose the future possibility of mineral exploration and recovery on the property. This disclosure must also be provided at the time of closing. 4. Land Use Summary on the plat: This summary includes suggested address numbers. The Garfield County Building Department will assign address numbers which may or may not differ from these sugggestions. 5. Article V, Paragraph 20 of the covenants states that initially the only livestock allowed shall be horses or cattle, and they shall be limited to 3 animals per lot. Staff is unclear if the plan is to allow more types of animals in the future and/or a higher number per lot. If more types and numbers are proposed, this should be clearly stated and approved as such. Otherwise, the approval will be limited to a total of three (3) cattle and/or horses, and the word "initially" should be removed. 6. The covenants should clearly state that no more than 500 square feet of lawn or garden shall be watered with the domestic well water. All additional landscape irrigation must be achieved from legal sources. 7. A new paragraph should be added to the covenants that is consistent with the Sheriff's Department recommendations concerning the clear posting of road names and addresses. Page 11 of 14 8. The covenants and the plat should disclose that site specific engineer studies shall be conducted for individual lot development. M. Assessment / Fees: As determined by Section 9:80 of the Subdivision Regulations, the applicant will be required to dedicate a portion of the gross land area for open space, parks, or schools, or pay fees in lieu thereof ($200 per each newly created parcel, or approximately $2000.00). This area appears to lie in traffic study area 6 of the capital improvements plan. The applicant can expect to pay about $2,100 per single family dwelling (approximately $23,100.00), minus the appropriate discounts. In the event any fees increase before the time of final plat, the increased fees shall be paid. V. RECOMMENDED FINDINGS: 1. That proper posting and public notice was provided, as required, for the hearing before the Planning Commission; 2. That the meeting before the Planning Commission was extensive and complete, that all pertinent facts, matters and issues were submitted and that all interested parties were heard at that hearing; 3. That for the above stated and other reasons, the proposed subdivision is in the best interest of the health, safety, morals, convenience, order, prosperity and welfare of the citizens of Garfield County; 4. That the application is in conformance with the 1978 Garfield County Zoning Resolution, as amended; 5. That the application is in conformance with the Garfield County Subdivision Regulations of 1984. VL RECOMMENDATION: Staff recommends the Planning and Zoning Commission recommend APPROVAL of the Native Springs Subdivision Preliminary Plan application to the Board of County Commissioners, with the following conditions: 1. That all representations made by the applicant in the application, and at the public hearing before the Planning Commission , shall be conditions of approval, unless specifically altered by the Planning Commission. (Access/Roads) 2. The recommendations of the Road & Bridge Department (including moving the fence and obtaining an access permit), shall be followed. A copy of an approved access permit shall Page 12 of 14 be submitted prior to approval of any final plat. The historic agricultural access along the eastern boundary of the property shall be abandoned, removed, and restored. 3. All roads and addresses shall be clearly marked so that they are visible from the road. The covenants shall also state this. 4. The covenants shall be amended to clearly state that the HOA may assess monies for road maintenance, and the HOA shall conduct said maintenance. The following correction shall be made to plat note #4: "That all expense or street maintenance and associated expenses shall be furnished by the Native Springs Subdivision Property Owners Association, Inc., not by the County of Garfield.". (Revegetation/Wetlands) 5. Prior to approval of the preliminary plan by the Board of County Commissioners, the section of covenants that addresses revegetation shall be amended so that a particular party, such as the Homeowners' Association) shall be made responsible for implementation of the revegetation plan. Plat note #7 shall be amended to state: "The individual lot owners shall be responsible for control of noxious weeds on their property. The Native Springs Subdivision Property Owners Association, Inc., shall be responsible for control of noxious weeds on all common areas." 6. The location of all wetlands shall be surveyed and shown on the plat and construction plans as necessary. A note shall be included which prohibits disturbance of the wetlands, and protections shall be put in place to prevent disturbance during construction. (Drainage) 7. Prior to approval by the Board of County Commissioners, the drainage plan shall be amended to include provisions for ditch blockage and to specifically address flood potential on the alluvial fans. 8. Prior to building, each lot owner shall obtain a professionally prepared (by a licensed engineer in the State of Colorado) grading and drainage plan which ensures positive drainage away from built structures. (Geotechnical) 9. All recommendations made by Hepworth-Pawlak shall be followed. Site specific studies shall be conducted for individual lot development, and a plat note and the covenants shall state such. The following shall be included on the plat, and in the covenants: "Site specific studies for individual lot development shall be conducted by a registered professional engineer within the State of Colorado. These studies shall include drainage Page 13 of 14 and grading plans, Individual Sewage Disposal System design, foundation design, and underdrain system design. The cost of these studies shall be borne by the individual property owner." (Fire/Emergency Access) 10. Prior to approval by the Board of County Commissioners, written approval of the proposed project shall be obtained from the Fire District. If the Fire District has additional recommendations or suggested changes, they shall be followed. (Wildlife/Animals/Covenants/Fees) 11. All recommendations made by the Division of Wildlife shall be followed. 12. No more than a total of 3 cattle and/or horses shall be kept on each lot. The covenants shall clearly state this. 13. All applicable fees shall be paid prior to approval of the final plat. 14. The covenants/plat notes shall be amended as follows: a.) Plat note #13 states ownership of the mineral rights lies with the Greens. This note, and the covenants, should be expanded to disclose the future possibility of mineral exploration and recovery on the property. This disclosure must also be provided at the time of closing. b.) The covenants should clearly state that no more than 500 square feet of lawn or garden shall be watered with the domestic well water. All additional landscape irrigation must be achieved from legal sources. (Water) 15. Prior to approval of the preliminary plan by the Board of County Commissioners, the applicant shall provide a letter from the State Engineer's Office of "no material injury" in light of the questions raised in the staff report, and shall provide proof of adequate irrigation water rights to support the proposal. 16. Individual wells will be prohibited. A central water system shall be provided which meets the subdivision regulations (specifically section 9:50 and 4:91B). The design of said system shall be submitted for review at least 2 weeks prior to the public hearing before the Board of County Commissioners. Or, Each and every well shall be drilled, pump tested, and water quality tested (for nitrates, nitrites, bacteria, phase II and V inorganics, radiation, and dissolved solids). No final plat shall be approved until the results meet the subdivision requirements and satisfaction of the Board of County Commissioners. Page 14 of 14 Page 15 of 14 STATE OF COLORADO 113E STATE ENGINEER f Water Resources nt of Natural Resources erman Street, Room 818 , Colorado 80203 e: (303) 866-3581 (303) 866-3589 1/water.state.co.usidefault.htM August 8, 2001 Kit Lyon, Senior Planner Garfield County Building and Planning 109 8th St Ste 303 Glenwood Springs CO 81601 Re: Native Springs Subdivision Preliminary Plan Sections 2 & 11, T6S, R93W, 6th RM. W. Division 5, W. District 39 Brit Owens Governor Greg E. Walcher Executive Director Hal D. 5irnp ,n, P.E. State Engineer Dear Ms. Lyon: This is in response to you request for further clarification of our comments dated July 6, 2001 regarding the above subdivision. The water report by Vernon D. Hope states that the irrigation line would be used to fill three 10,000 -gallon fire protection tanks during the irrigation season. This may not be performed under the irrigation water rights since this would be an expansion of use. However, the tanks may be filled pursuant to an undecreed diversion if there are no calls on the system. This new water right could be adjudicated in the water court You have also stated that the covenants allow for three horses or cattle. Contrary to the covenants, Table 1 in the Zancanella and Associates, Inc., report notes "0 units" of livestock. Thus, such use has not been contemplated per the proposed water supply plan, and was not included in our recommendation letter_ If you or the applicant have any further questions concerning this matter, please contact Craig Lis of this office for assistance. Sincerely, Kenneth W. Knox Assistant State Engineer KWK/CMUNative Springs i.doc cc: Alan Martellaro, Division Engineer James R, Lemon, Water Commissioner, District 39 :"RESOURCE MEM ■ st•■ ■ E!E■ E N G I N E E R I N G I N C. Kit Lyon Garfield County Planning Department 144 '/2 East Third, Suite 208 Rifle CO 81650 RE: Native Springs Subdivision Preliminary Plan Review Dear Kit: August 29, 2001 RECEIVED SEP 052001 At the request of Garfield County Resource Engineering, Inc. (RESOURCE) has reviewed the preliminary plan submittal for the proposed Native Springs Subdivision near Rifle, Colorado. RESOURCE was asked to look at technical issues for the proposed project, especially those related to the use of individual wells for water supply and ISDS for wastewater disposal. Our comments are presented below. WATER SUPPLY Based on the results of the well constructed on Lot 2 it appears that an adequate water supply could be developed for each of the Tots in the proposed subdivision. WASTEWATER DISPOSAL The geotechnical .indicates that there are suitable soils within the subdivision on each lot for infiltration of wastewater effluent through leachfields. However, the geotechnical investigation determined shallow ground water at depths of 10 to 15 feet with seasonal high ground water potentially as shallow as 5 feet. As pointed out in the HP Geotech report, engineered mound system leachfields would be required to obtain the minimum separation between seasonal high ground water and the bottom of the leachfield. The depth to ground water in Well No. 2 (26 feet) is not consistent with the shallow ground water found in the Geotechnical borings. This may indicate that there is a sufficient clay layer which creates a shallow perched ground water that is not connected to the deeper ground water in the well. There is certainly concern for potential contamination of the ground water supply by the ISDS systems. Ground water was encountered in the well at a depth at which the geotechnical boring indicates a change from silt and clay to sand, gravel and cobbles. Properly designed and constructed wells which draw water from this apparent lower aquifer source should minimize the risk of contamination from ISDS system. Additionally, consistent with other approvals in the County, engineered individual sewage treatment systems (ISTS) should be required. The proposed operation and maintenance plan for ISDS is inadequate and puts the burden on the local health department (County). An operation and maintenance plan which is the responsibility• of the homeowners association should be developed consistent with other approvals in the County. Consulting Engineers and Hydrologists 909 Colorado Avenue i Glenwood Springs, CO 81 601 1 (970) 945-6777 i Fax (970) 945-1137 DRAINAGE The proposed drainage plan does not satisfactorily support the conclusion that there will not be an increase in 'runoff due to development at the project. Other small developments in the area have included individual and or central detention facilities for the project. This project should include detention facilities or in the alternative provide for check dams in drainage swales and ditches, low lying grassed areas, etc. which promote infiltration. ROADS The proposed dead end cul-de-sac exceeds the County criteria. Based on the layout of the property and the size of Tots, it is unclear as to why a horse shoe loop road (or a more creative design) could not be provided for this proposed subdivision. Please call if you have any questions or need additional information. Sincerely, RESOURCE E GIN ERING, INC. Michael J. Er , P.E. Water Resources Engineer MJE/mmm 885-1.0 kl native springs sub.885.wpd i RESOURCE NGINEERING I N C. P.O. Box 1908 005 Cooper Ave. lenwood Springs, CO 81602 /K\ RECEIVED 4497b) 94200 Z,Ir4C4NELL4 4t40 455OCi4TES, INC. ENGINEERING CONSULT411T5 August 10, 2001 Ms. Kit Lyons Garfield County Building and Planning 109 Eighth Street, Suite 303 Glenwood Springs, CO 81601 RE: Native Springs Dear Kit: (970) 945-1253 Fax RECEIVED AUG 1 5 2001 In follow up to Ken Knox' letter of August 8, 2001, we have spoken to Ken and have agreed that the 30,000 gallon storage tanks for exclusive fire protection use can be filled by an exempt fire protection well (see attached §37-92-602). A copy of the well permit application is attached In addition, the stock associated with the subdivision will obtain its water from the Green Spring. The spring is a decreed stock right in decree W3914 (also attached). The Green Spring can be part of the pipe irrigation system. We are sorry we did not include the irrigation/stock decree in our original submittal. If you have any questions, please call our office at (970) 945-5700. Very truly yours, Zancanella & Associates, Inc. forma A 7 cwo,„"QAq Thomas A. Zancanella, P.E. Attachment cc: Ken Knox Ron Liston Z:\20000\20722 Native Springs Sub\garco_fireprot.wpd ;termina- 1; Laws ded that all on of water ntinue to be tct provided I under sub - on and Ad" list. No. 11, .2d 311, 178 in lakes was nant did not Water Right a Act, claim ter Adjudica- )rotest could y to protect o. 11, Water 1, 178 Colo. I Detennina- continuation gs under Ad - filing of new active date of :ould proper - diction over rior, ongoing County of iter Com'rs v. n Dist., 1985, on of water well in Weld rate to clothe exclusive jur- ing to water deprive Mor- trisdiction in nmission and tgainst use of in Morgan County action that water involved was designated ground water, jurisdiction over which was given to Ground Water Commis- sion, and that land and water was located in Morgan County; but if petitioners could later prove that water was not designated ground water and that, with proper jurisdiction, Weld County District Court had adjudicated it, Ground Water Commission and State Engineer would fail in their action. Larrick v. District Court In and For Morgan County, 1972, 493 P.2d 647, 177 Colo. 237. 6. Reasonable diligence showing Where owners of conditional water decree inadvertently failed to file an application for and obtain a finding of reasonable diligence in 1972, water court had jurisdiction to cancel the .. •u g, a ou, 607 P.2d 1289, 199 Colo. 225. Fact that 1889 conditional decree of water rights was included in 1974 tabulation of water rights priorities prepared by the division engi- neer for the water division did not estop the water court from cancelling that conditional decree because of the failure of the owners to obtain, in 1972, a finding of reasonable dil- igence. Simineo v. Kelling, 1980, 607 P.2d 1289, 199 Colo. 225. The owner or user of a conditional water right must comply with the statutory mandate that it obtain findings of reasonable diligence every four years and the failure to do so results in the loss of conditional water rights. Town of De Beque v. Enewold, 1980, 606 P.2d 48, 199 Colo. 110. § 37-92-602. Exemptions—presumptions—legislative declaration (1) The provisions of this article, except for sections 37-92-201 and 37-92-202, shall not be applicable to: (a) Designated ground water basins as defined and established by article 90 of this title; (b) Wells not exceeding fifteen gallons per minute of production and used for ordinary household purposes, fire protection, the watering of poultry, domestic animals, and livestock on farms and ranches, and the irrigation of not over one acre of home gardens and lawns, but not used for more than three single-family dwellings; (c) Wells not exceeding fifteen gallons per minute of production and used for drinking and sanitary facilities in individual commercial businesses; (d) Wells to be used exclusively for fire -fighting purposes if said wells are capped, locked, and available for use only in fighting fires; and (e) Wells not exceeding fifty gallons per minute which are in production as of May 22, 1971, and were and are used for ordinary household purposes for not more than three single-family dwellings, fire protection, the watering of poultry, domestic animals, and livestock on farms and ranches, and the irrigation of not over one acre of gardens and lawns. (2) With respect to applications filed prior to May 8, 1972, the state engineer shall issue a permit for the construction of wells specified in subsection (1) of this section without regard to the provisions of section 37-90-137(2) and (3) upon submission of an application which shall be accompanied by a fee of five dollars. It is the legislative intent that the exemption in subsection (1) of this section is for an applicant to obtain a water supply for his own use. (3)(a) Wells of the type described in paragraphs (b) to (d) of subsection (1) of this section may be constructed only upon the issuance of a permit in accordance with the provisions of this subsection (3). A person desiring to use such a well shall submit an application for a permit accompanied by a fee of twenty dollars for an application under paragraph (c) of this subsection (3) 1005 M-3914 The Referee Does therefore conclude that the above entitled application should be granted and that 0.50 cubic foot of water per second of time is hereby awarded to ths-70reen Spring, for irrigation and livestock water uses,with appropriation date of the 31st day of December, 1964, absolutely and unconditionally; subject, however, to all earlier priority rights of. others and to the integration and tabulation by the Division Engineer of such priorties and changes of rights in accordance with law. It is accordingly ORDERED that this ruling shall be filed with the Water Clerk and shall become effective upon such filing, subject to Judicial review pursuant to Section 37-92-304 C.R.S. 1973. it is further ORDERED that acopy of this ruling shall be filed with the appropriate Division Engineer and the -State Engineer. Done at the City of Glenwood Springs, Colorado, this d day of jJ1/A41' ,197f • BY THE REFEREE: 4o protest was filed in this matter. Wa feree The foregoing ruling is confirmed W r Division No. 5 and approved, and Is mode the State of Colorado Judgment and of this court. Dated: WATER JUDGE )LORADO DIVISION OF WATER RESOURCES T.,.p,ARTMENT OF NATURAL RESOURCES 13 SHERMAN ST., RM. 818, DENVER CO 80203 one - info: (303) 866-3587 main: (303)866-3581 ENERAL PURPOSE Water Well Permit Application ease note: other forms are available for specific uses including - residential, livestock, monitoring/observ., gravel pits, registration of old wells) aview instructions prior to completing form Must be completed in black ink or typed . APPLICANT INFORMATION 6. USE OF WELL (please attach detailed description) ame of applicant 'aul B. Luginbuhl and Jim E. Luginbuhl tailing Address D. O. Box 950 ❑ INDUSTRIAL E OTHER: Fire Protection ❑ COMMERCIAL ❑ MUNICIPAL ❑ IRRIGATION ❑ FEED LOT -- number of head: :ity Basalt State Zip Code CO 81621 7. WELL DATA releprione number (include area code) (970) 927-4585 Maximum pumping rate 15 qpm 2. TYPE OF APPLICATION (check appiicable box(es)) Total depth 100 ft. Annual amount 1.0 AF Aquifer Colorado R. Alluvium/Wasatch 8. LAND ON WHICH GROUND WATER WILL BE USED O Construct new well ❑ Replace existing well ❑ Change (source) Aquifer ❑ Other: ❑ Use existing well ❑ Change or Increase Use O Reapplication (expired permit) 3. REFER TO (if applicable): Water court case # West Divide Contract # 355 Emergency Verbal # -VE- Permit # Monitoring hole acknowledgment # A. LEGAL DESCRIPTION (may be provided as an attachment): See attached. (If used for crop irrigation, attach scaled map that shows irrigated area.) Well name or # Monitoring hole acknowledgment # Fire Well B. # acres 65.96 C. Owner Paul B. & Jim E. Lueinbuhl D. List any other wells or water rights used on this land: Each lot will have only one well. The fire well is to be centrally located in the cul de sac 4. LOCATION OF WELL County Garfield Section 11 Township N or S 6 ❑ Quarterlquarter NW1/4 Range E or W 93❑IJ Quarter NE1/4 Principal Meridian 6th Distance of well from section lines 130 ft from ElN❑ S 2165 ftfrom El E❑ w 9. PROPOSED WELL DRILLER (optional) Name Shelton Drilling Corporation Well location address. if different from applicant address (if applicable) County Road 221 License number 1095 10. SIGNATURE of applicant(s) or authorized a2 The making of false statements herein constitutes perjury in the second degree, which is punishable as a class 1 mis- demeanor pursuant to C.R.S. 24-4-104(13)(a). I have read the statements herein, know the contents thereof, and state that they are true to my knowledge. For replacement wells only - distance and direction from old well to new well feet direction 5. TRACT ON WHICH WELL WILL BE LOCATED A. LEGAL DESCRIPTION (may be provided as an attachment): See attached. Must be original signature Title • v l t\&A `42./ \f 1L_ OPTIONAL INFORMATION 8. STATE PARCEL ID# (optional): C. x acres in tract 65.96 D. Owner Paul B. Luginbuhl and Jim E. Luginbuhl USGS map name E. Will this be the only well on this tract? ❑ YES NO (if other wells are on this tract, see instructions) Date 84; 12001 DWR map no. Surface elev. Office Use Only DIV CO WD BA USE(S) MD Form GWS -45 (12/95) SENT BY: RIFLE FIRE; 970 825 2083; SEP -10-01 8:31AM; RIFLE FIRE PROTECTION DISTRICT September 6, 2001 Garfield County Building and Planning Department 109 8t' Street Glenwood Springs, Colorado 81601 Attention: Kit Lyons Reference: Native Springs Subdivision PAGE 212 RECEIVED SEP i �1 The Rifle Fire Protection District has reviewed the proposed Native Springs Subdivision near Rifle. The District has approved the preliminary design of the Subdivision but will require final approval of the individual fire sprinkler systems and final acceptance of the 30,000 gallon central water supply_ Feel free to contact me ifyou have any questions_ Sincerely, Mike Morgan District Chief Cc: Ron Listen Telephone (970) 625-1243 • Fax (970) 625-2963 1850 Railroad Avenue • P -O_ Box 1133 • Rifle, Colorado 81650 RECEIVE° AUG 1 7 2001 STATE OF COLORADO OFFICE OF THE STATE ENGINEER Division of Water Resources Department of Natural Resources 1313 Sherman Street, Room 818 Denver, Colorado 80203 Phone: (303) 866-3581 FAX: (303) 866-3589 http://water.state.co.us/default.htm August 8, 2001 Kit Lyon, Senior Planner Garfield County Building and Planning 109 8th St Ste 303 Glenwood Springs CO 81601 Re: Native Springs Subdivision Preliminary Plan Secto s 2 a 11, TOG, R:r.JVV, e P.M. W. Division 5, W. District 39 Bill Owens Governor Greg E. Walcher Executive Director Hal D. Simpson, P.E. State Engineer Dear Ms. Lyon: This is in response to you request for further clarification of our comments dated July 6, 2001 regarding the above subdivision. The water report by Vernon D. Hope states that the irrigation line would be used to fill three 10,000 -gallon fire protection tanks during the irrigation season. This may not be performed under the irrigation water rights since this would be an expansion of use. However, the tanks may be filled pursuant to an undecreed diversion if there are no calls on the system. This new water right could be adjudicated in the water court. You have also stated that the covenants allow for three horses or cattle. Contrary to the covenants, Table 1 in the Zancanella and Associates, Inc., report notes "0 units" of livestock. Thus, such use has not been contemplated per the proposed water supply plan, and was not included in our recommendation letter. If you or the applicant have any further questions concerning this matter, please contact Craig Lis of this office for assistance. Sincerely, Kenneth W. Knox Assistant State Engineer KWK/CML/Native Springs i.doc cc: Alan Martellaro, Division Engineer James R. Lemon, Water Commissioner, District 39 P.O. Box 1908 1005 Cooper Ave. Glenwood Springs, CO 81602 /`<\ RECEIVED Ati7b) s4Aibo (970) 945-1253 Fax Z4NC.dNELL4 4140 455OCIwTES, INC. ENGINEERING CONSULT4NT5 August 10, 2001 Ms. Kit Lyons Garfield County Building and Planning 109 Eighth Street, Suite 303 Glenwood Springs, CO 81601 RE: Native Springs Dear Kit: RECEIVED AUG 1 5 2001 In follow up to Ken Knox' letter of August 8, 2001, we have spoken to Ken and have agreed that the 30,000 gallon storage tanks for exclusive fire protection use can be filled by an exempt fire protection well (see attached §37-92-602). A copy of the well permit application is attached In addition, the stock associated with the subdivision will obtain its water from the Green Spring. The spring is a decreed stock right in decree W3914 (also attached). The Green Spring can be part of the pipe irrigation system. We are sorry we did not include the irrigation/stock decree in our original submittal. If you have any questions, please call our office at (970) 945-5700. Very truly yours, Zancanella & Associates, Inc. Thomas A. Zancanella, P.E. Attachment cc: Ken Knox Ron Liston Z:\20000\20722 Native Springs Sub\garco_fireprot.wpd s in which the final determina- § 1; Laws ct provided that all ljudication of water will continue to be cation Act provided proceed under sub- rmination and Ad - Vater Dist. No. 11, 496 P.2d 311, 178 water in lakes was ,id claimant did not ,ed by Water Right istration Act, claim . of Water Adjudica- n that protest could ct only to protect Dist. No. 11, Water i'.2d 311, 178 Colo. r Right Detennina- ct for continuation ,ceedings under Ad- ,,rized filing of new ter effective date of court could proper- - jurisdiction over f its prior, ongoing iy and County of of Water Com'rs v. .rvation Dist., 1985, idication of water round well in Weld of operate to clothe with exclusive jur- relating to water _ire to deprive Mor - of jurisdiction in Commission and :tion against use of well, assuming truth of allegation of complaint in Morgan County action that water involved was designated ground water, jurisdiction over which was given to Ground Water Commis- sion, and that land and water was located in Morgan County; but if petitioners could later prove that water was not designated ground water and that, with proper jurisdiction, Weld County District Court had adjudicated it, Ground Water Commission and State Engineer would fail in their action. Larrick v. District Court In and For Morgan County, 1972, 493 P.2d 647, 177 Colo. 237. 6. Reasonable diligence showing Where owners of conditional water decree inadvertently failed to file an application for and obtain a finding of reasonable diligence in 1972, water court had jurisdiction to cancel the conditional decree. Simineo v. Kelling, 1980, 607 P.2d 1289, 199 Colo. 225. Fact that 1889 conditional decree of water rights was included in 1974 tabulation of water rights priorities prepared by the division engi- neer for the water division did not estop the water court from cancelling that conditional decree because of the failure of the owners to obtain, in 1972, a finding of reasonable dil- igence. Simineo v. Kelling, 1980, 607 P.2d 1289, 199 Colo. 225. The owner or user of a conditional water right must comply with the statutory mandate that it obtain findings of reasonable diligence every four years and the failure to do so results in the loss of conditional water rights. Town of De Beque v. Enewold, 1980, 606 P.2d 48, 199 Colo. 110. § 37-92-602. Exemptions—presumptions—legislative declaration (1) The provisions of this article, except for sections 37-92-201 and 37-92-202, shall not be applicable to: (a) Designated ground water basins as defined and established by article 90 of this title; (b) Wells not exceeding fifteen gallons per minute of production and used for ordinary household purposes, fire protection, the watering of poultry, domestic animals, and livestock on farms and ranches, and the irrigation of not over one acre of home gardens and lawns, but not used for more than three single-family dwellings; (c) Wells not exceeding fifteen gallons per minute of production and used for drinking and sanitary facilities in individual commercial businesses; (d) Wells to be used exclusively for fire -fighting purposes if said wells are capped, locked, and available for use only in fighting fires; and (e) Wells not exceeding fifty gallons per minute which are in production as of May 22, 1971, and were and are used for ordinary household purposes for not more than three single-family dwellings, fire protection, the watering of poultry, domestic animals, and livestock on farms and ranches, and the irrigation of not over one acre of gardens and lawns. (2) With respect to applications filed prior to May 8, 1972, the state engineer shall issue a permit for the construction of wells specified in subsection (1) of this section without regard to the provisions of section 37-90-137(2) and (3) upon submission of an application which shall be accompanied by a fee of five dollars. It is the legislative intent that the exemption in subsection (1) of this section is for an applicant to obtain a water supply for his own use. (3)(a) Wells of the type described in paragraphs (b) to (d) of subsection (1) of this section may be constructed only upon the issuance of a permit in accordance with the provisions of this subsection (3). A person desiring to use such a well shall submit an application for a permit accompanied by a fee of twenty dollars for an application under paragraph (c) of this subsection (3) 1005 W-3914 The Referee Does therefore conclude that the above entitled application should be granted and that 0.50 cubic foot of water per second of time is hereby awarded to theGreen Spring, for irrigation and livestock water uses,with appropriation date of the 31st day of December, 1964, absolutely and unconditionally; subject, however, to all earlier priority rights of others and to the integration and tabulation by the Division Engineer of such priorties and changes of rights in accordance with law. It is accordingly ORDERED that this ruling shall be filed with the Water Clerk and shall become effective upon such filing, subject to Judicial review pursuant to Section 37-92-304 C.R.S. 1973. It is further ORDERED that acopy of this ruling shall be filed with the appropriate Division Engineer and the State Engineer. Done at the City of Glenwood Springs, Colorado, this Zit day of da.trar ,1979. 1,4 i protest was filed in this matter. The foregoing ruling is confirmed and approved, aid is made the Judgment and r : ee of this court. Doted: W • TER JUDGE BY THE REFEREE: Wa teree W Division No. 5 State of Colorado ■.■■ RESOURCE ...■■ ■ ■■■■ ■ ■■■■ E N G I N E E R I N G INC. .e•te • Kit Lyon August 29, 2001 Garfield County Planning Department 144 'h East Third, Suite 208 RECEIVED Rifle CO 81650 SEP 0 5 2001 RE: Native Springs Subdivision Preliminary Plan Review Dear Kit: At the request of Garfield County Resource Engineering, Inc. (RESOURCE) has reviewed the preliminary plan submittal for the proposed Native Springs Subdivision near Rifle, Colorado. RESOURCE was asked to look at technical issues for the proposed project, especially those related to the use of individual wells for water supply and ISDS for wastewater disposal. Our comments are presented below. WATER SUPPLY Based on the results of the well constructed on Lot 2 it appears that an adequate water supply could be developed for each of the lots in the proposed subdivision. WASTEWATER DISPOSAL The geotechnical indicates that there are suitable soils within the subdivision on each lot for infiltration of wastewater effluent through leachfields. However, the geotechnical investigation determined shallow ground water at depths of 10 to 15 feet with seasonal high ground water potentially as shallow as 5 feet. As pointed out in the HP Geotech report, engineered mound system leachfields would be required to obtain the minimum separation between seasonal high ground water and the bottom of the leachfield. The depth to ground water in Well No. 2 (26 feet) is not consistent with the shallow ground water found in the Geotechnical borings. This may indicate that there is a sufficient clay layer which creates a shallow perched ground water that is not connected to the deeper ground water in the well. There is certainly concern for potential contamination of the ground water supply by the ISDS systems. Ground water was encountered in the well at a depth at which the geotechnical boring indicates a change from silt and clay to sand, gravel and cobbles. Properly designed and constructed wells which draw water from this apparent lower aquifer source should minimize the risk of contamination from ISDS system. Additionally, consistent with other approvals in the County, engineered individual sewage treatment systems (ISTS) should be required. The proposed operation and maintenance plan for ISDS is inadequate and puts the burden on the local health department (County). An operation and maintenance plan which is the responsibility of the homeowners association should be developed consistent with other approvals in the County. Consulting Engineers and Hydrologists 909 Colorado Avenue ■ Glenwood Springs, CO 81 601 • (970) 945-6777 IN Fax (970) 945-1137 DRAINAGE The proposed drainage plan does not satisfactorily support the conclusion that there will not be an increase in runoff due to development at the project. Other small developments in the area have included individual and or central detention facilities for the project. This project should include detention facilities or in the alternative provide for check dams in drainage swales and ditches, low lying grassed areas, etc. which promote infiltration. ROADS The proposed dead end cul-de-sac exceeds the County criteria. Based on the layout of the property and the size of lots, it is unclear as to why a horse shoe loop road (or a more creative design) could not be provided for this proposed subdivision. Please call if you have any questions or need additional information. Sincerely, RESOURCE E GIN ERING, INC. Michael J. ErierS, P.E. Water Resources Engineer MJE/mmm 885-1.0 kl native springs sub.885.wpd RESOURCE ENGINEERING INC : NATIVE SKIES PHONE NO. Form No, GWS -25 APPLICANT OFFICE OF THE STATE ENGINEER COLORADO DIVISION OF WATER RESOURCES Bit trenkenaial eidg ,1; 15 Sherman Bk, Denver, Colorado 80203 (303) 883.3581 PAUL B & JIM E LUGINBUWL P 0 SOX 950 BASALT, CO 81621- (970) 927-4885 PERMIT TO CONSTRUCT A WELL Sep. K021 08:43AM P1 RECEIVED SEP 1o 2001 WELL PERMIT NUMBER 235794 DIV. 5 WD 39 DES, BASIN MD 1095 APPROVED WELL LOCATION GARFIELD COUNTY NW 114 NE 1/4 Section 11 Township 8 8 Range 93 W Sixth P.M. DISTANCES FROM SECTION LINES 130 Ft. from North Section Line 2165 Ft. from East See:lon Line UTM WORQINATES Northing: Easting: ISSUANCE, CrF THIS PERMIT DOES NOT CONFER A WATER -Til. =IT CONQITIQNS 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 this permit does not assure the applicant that no injury will ocour to another vested water right or preclude 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 OCR 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 37.92.802(3)(b)(I) for the use as described In CRS 37.92-602(1)(d). 4) The use of groundwater from this well is limited to fire protection. This well shall be capped and locked, and be available for use only in fighting fires. 5) The maximum pumping rate of this well shall not exceed 15 GPM. 8) The average annual amount of ground water to be appropriated shall not exceed 1 acre-foot. 7) The Division Engineer shell be notified within 72 hours whenever this well is pumped. 8) This well shall be constructed not more than 200 feet from the Ioc.ation specified on this permit 61/.t.V‘ t APPROVED JSG Receipt No. 0480917 State Engineer - PA 1)�* DATE ISSUED ip 2 9at3