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HomeMy WebLinkAboutMINUTES Water Committee 1974-02-04RECORD OF PROCEEDINGS Water Committee Meeting February 4,1974 Committee:Chairman Prosser;Trustees Dannels and Sutter Attending:Chairman Prosser Trustee Sutter Also Attending:Town Administrator Hill,Superintendent McCracken, Business Office Manager Duncan,Andy Anderson Absent:Trustee Dannels RURAL WATER APPLICATIONS: Kittie Marie Gates One rural residence located on East Riverside Drive.The Committee recom mends approval. High Drive Association Association requests a one year extension on existing request to serve High Drive area. Request for extension was presented by Mr.Andy Anderson.The Committee recom mends approval. REQUEST FOR WATER LEAK ADJUSTMENT: Chairman Prosser presented a request in behalf of Poling Electric concerning excessive water consumption during the eight month period from October 1,1972, to June 1,1973,due to a water leak.The Committee recommends applying the current water department policy of a fifty percent adjustment with one adjust ment per meter each five years. RAVENCREST HEIGHTS WATER PROPOSAL: Town Administrator Hill presented a water exchange proposal submitted by Ravencrest Heights and a recommendation by the Town Consulting Engineer answering that request.The Committee recommends that the Consulting Engineer’s letter of today be accepted and that the Engineer’s recommendation to reject the proposal be accepted. WORK EXTENSION REQUEST FOR ONE YEAR: Superintendent McCracken requested that employee Everett Hattan be permitted to work for the Water Department for another year.The Committee recommends approval. AWWA SCHOOL IN DENVER: Superintendent McCracken requested permission to attend a four day training school for “C”operators for himself and Lee Goracke to be held in Denver. The Committee recommends approval. WATER EXTENSION IN HIGH PINES AREA: Superintendent McCracken advised of an impending request in the High Pines Area.The Committee emphasized current policy which requires an easement and deed to the four inch line extension. Co RECORD OF PROCEEDINGS C Water Committee Meeting February 4,1974 Page Two (2) EQUIPMENT FOR CONSTRUCTION &MJNTENANCE: Superintendent McCracken presented competitive bids on a one ton truck including 12 foot body with 2000#lift,amber roof beacon and spotlight mounted as follows: Dellenback Chev.Inc., Garrett Motors Estes Park Garage Trail Ridge Ford State bid without The Committee recommends accepting the bid from Trail Ridge Ford. Superintendent McCracken presented the following air compressor,sinker drill and accessories: Western States Machinery: Quincy Air Compressor Thor Sinker Drill 100’3/4”Air Hose quotations on a 150 CFM $4,850.00 55700 88.00 Drill 2—2 2-4 2—6 2—8 Steel,7/8”X 3”H Thread ft.@ $10.20 each ft.@ $13.25 each ft.@ $16.65 each ft.@ $19.70 each 20.40 26.50 33.30 39 .40 $5,614.60 $5,900.00 $5,585.00 920.00 207.60 $6,712.60 FEB 111974 TOWN OF Li1iS LFTRUJ with 1600#lift with 1600#lift with 2000 lift with 2000 lift amber roof beacon and $5,118.67 5,077.54 5,857.00 5,098.38 spotlight mounted $4,731.60 COBUSCO,Inc. Ingersoll Rand Air Compressor: Gardner Denver Air Compressor Sinker Drill Hose &Steel as above The Committee recommends accepting the Western States Machinery Co.quotation. There being no further business,the meeting adjourned. LloydA Duncan,Business Office Manager i’J PLANNING •ARCHITECTURE•ENGINEERING •SYST.ONOMICS DMJM D MJ M -PHI LU PS RE I STER . February 4,1974 Town of Estes Park P.0.Box 1200 Estes Park,Colorado 80517 Attn:Mr.Dale G.Hill,Town Administrator Re:Ravencrest Heights Water Exchange Offer Gentl emen: We have reviewed the enclosed offer by the developers of the Ravencrest Heights Subdivision to exchange water rights with the Town to achieve a well augmentation for their proposed subdivision.Our report and comments are as follows. Proposed Plan.The developers of Ravencrest Heights plan to provide domestic water for their subdivision from wells.It is planned to cover the consumptive use from these wells by acquiring water rights on the Big Thompson River,to which the wells are tributary,since diversion of ground water tributary to a stream is considered the same as diversion of the stream water itself.The developers of Ravencrest Heights are presently in control of a number of units of Colorado -Big Thompson Project water;however,the NCWCD will not permit CBT water to be used for well augmentation. Proposed Offer.The Ravencrest Heights developers have offered to lease to the Town of Estes Park,eight units of Colorado -Big Thompson Project water. In return the developers want the Town to lease to them,for well augmentation, 1.35 acre-feet of water annually from the Town’s Black Canyon water rights. On the surface,the total water gained by the Town from the 8 units of CBT water would appear to be on the order of 5 acre-feet annually.The amount given up by the Town would be 1.35 acre-feet,giving an apparent net gain of 3.65 acre-feet annually. Analysis.However,if the Black Canyon water right were to be called from the river because senior decrees downstream were unfulfilled,then the Town would have to release to the river sufficient CBT water to compensate for the Black Canyon water being leased to Ravencrest Heights.This would amount to about 2 units of the Town’s CBT water. Recommendation.Thus,it seems to be a gamble as to whether the Town would realize a net gain each year,or whether it would be more likely for the Black Canyon right to be called out by senior rights.Historically,the Black Canyon right has never been called out,but the river has not been strictly administered,either. DENVER DIVISION .DANIEL,MANN,JOHNSON,&MENDENHALL SUITE 700 •910 FIFTEENTH STREET •DENVER,COLORADO 80202 •TELEPHONE (303)266-2481 •CADLE:DIMJIM DENVER Qo i)MJM ED DMJM-PH1LLIPSREISTER Town of Estes Park -2-February 4,1974 Attn:Mr.Dale Hill The Black Canyon water right with a priority date of August 25,1905,is a very junior one,and one,in our opinion,quite likely to be called out under strict administration.We therefore would recommend that the Town not jeopardize their water tights situation by putting themselves in a position where the Town would have to release to the stream any CBT water during a dry summer season,particularly since that is when the Town will need the CBT water itself.In short,we recommended that the Town not accept the exchange offer made by the developers of Ravencrest Heights. Very truly yours, D1JM -PHILLIPS EISTER,INC. R.K.Kemp RKK:vw End.(as noted) 74-01 CNt Mr.Bob Kemp Phillips,Carter,Reister & Associates,Inc. Insurance Exchange Building Denver,Colorado 80202 Dear Mr.Kemp: RE:Ravencrest Heights Subdivision Job No.272-l43 I have enclosed a rough draft of the total water demand and consumptive use calculations for the Ravencrest Heights Subdivision.As can be seen,1.35 acre-feet of water will be required as compensation to the river.The average annual yield of two units of Colorado Big Thompson Project water is approximately 1.4 acre-feet,and the safe yield of this water is approximately 1.8 acre-feet. Therefore,two units of Big Thompson water,if it could be used,would be adequate compensation to the river. It is proposed that 1.35 acre-feet of Black Canyon Pipeline water be leased from the Town of Estes Park to be used in the augmentation plan for the Ravencrest Heights Subdivision.Should this be done and the Black Canyon Pipeline decree be called from the river,the Town of Estes Park would be required to release to the river approximately two units of Big Thompson Proiect water to compensate for the 1.35 acre-feet of Black Canyon Pipeline water. It is further proposed that as compensation for this lease,the owners of Ravencrest Heights Subdivision will provide to the Town of Estes Park in fee simple,eight units of Colorado Big Thompson Project water.The reason for arriving at eight units is that should the Town of Estes Park ever decide to provide water service to this subdivision,the total use of 7.9 acre-feet will be compensated for by the eight units of Colorado Big Thompson water. These use figures are,of course,based on in-house domestic use only because well permits provided by the State Engineer’s office on this type of location do not allow for anything other than that type of use. If you have any questions concerning either the water demand calculations or the proposal,we would be happy to discuss them with you at any time. vis Very truly yours, RpCkY M9jJNTAII CONSULTANTS,INC. Ken Rollin 2 1g7QC DMJM ountain consultants Inc. 1755n.main Iongmont,colorado 80501 (303)772-5282 co PROPOSED WATER AUGMENTATION PLAN FOR RAVENCREST HEIGHTS SUBDIVISION Per Capita Consumption Rocky Mountain Consultants,Inc.has found through research and experience that the per capita demands for water in mountain subdivisions approximates 65 gallons per person pet day.This figure precludes the use of water for lawns, agricultural or garden uses.A specific case in point is the Left Hand Water Suppiy Company,located in Boulder County,Colorado,wh!ch has a pr capita use on a non-irrigated residential basis of approximately 75 gallons per day per person.The water in the District is used for lawn or garden purposes only to a very limited extent.Within household use is on a year around basis as opposed to mostly seasonal use of the cabins or homes to be built in Ravencrest Heights Subdivision. Weather Weather records as compiled by the Weather Bureau,U.S.Department of Commerce,indicate that for the ten year period 1951 —1960,the normal annual precipitation was 16 inches at Estes Park.The precipitation at this location during the grcwing season months of May through September s an annual avrag. of 10.16 inches.Due to comparable climate and roughly the same elevation at the Ravencrest Heights Subdivision site and the Town of Estes Park,the above figures are used as a basis for the following calculations and conclusions. Water Demand Ravencrest Heights Subdivision will consist of 11 lots averaging approxi— mately acres each,which will contain single family dwellings.Also included in this subdivision will be 20 condominium units.For the purposes of this report,it will be assumed that this comprises 31 single family dwelling uzs. It will also be assumed that each dwelling unit will contain an average of 3.5 people.Therefore,each dwelling unit will require approximately 225 gallons of water per day.Because of the close proximity of this subdivision to the Town of Estes Park,a rate of l00 year around occupancy will be used as a basis for water augmentation.it is,however,highly unlikely that all of the condominium units will be occupied year around.The expected annual water requirements for Ravencrest Heights Subdivision are summarized as follows: Water Demand Occupancy during 150 day growing season =10O (31 x 3.5 x 65 x 150 = 1,057,875 gallons 325,824)=3.25 acre-feet Occupancy during non-growing season =l00 (31 x 3.5 x 65 x 215 =1,516,287 gallons 325,824)=4.65 acre-feet The subject subdivision therefore has a total water demand of 7.9 acre-feet per year.Of this amount,3.25 acre—feet will be used during the growingseason Consumptive Use Requirements It is anticipated the subdivision w!H use conventional septic tank leach field systems on all building sites.For purposes of this report,however,it is assumed that three of the 31 sites will requite evapo—transpiration type systems. Therefore,there will be 28 homes using septic tank—leach field systems,and three using evapo—transpiration systems.During the growing season,eachisingaseptictankleachfieldsystemdwellinguniwi1lrequite.105 acre—feet of water for total use,or a total of 2.94 acre—feet of waterof which 2O will be consumed,or a consumptive use of .59 acre—feet.Each dwelling unit using an evapo—transpiration type system will use .255 acre-feet of water on a year around basis.The evapo-transpiration 00 CD systems will consume lOOt of this,or .255 acre-feet each for a total of .76 acre—feet for these three units.Therefore,the total consumptive use of the Ravencrest Heights Subdivision is 1.35 acre—feet of water pet year. Potable Water Supply / Drilled wells are the primary source of water in the vicinity of Ravencrest Heights Subdivision,with the Ravencrest Chalet being a notable exception in that a spring near the northeast cornet of the Ravencrest Subdivision provides high quality water for potable use. A cursory review of established wells in the Meadowdale Hills Subdivision, an adjoining subdivision east of the subject property,indicates an ample supply of pure water at depths feasible for drilling and pumping. S --.....LI Also,please note the comments relative to rock formations as submitted in the accompanying Geology report.