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HomeMy WebLinkAbout01595 • GARFIELD COUNTY BUILDING AND SANITATION DEPARTMENT :i f 131 LIY;491•1 eaRMIT OWN 109 8th Street Suite 303 Glenwood Springs, Colorado 81601 Phone (303) 945 -8212 This does not constitute INDIVIDUAL SEWAGE DISPOSAL PERMIT N 1595 a building or use permit. Owner Bonneville Pacific Corp. System Location Inland Mariculture - 0054 Ca. Rd. 352, Rifle Licensed Installer SQiIItsat$ex'_ _Maroc., • Conditional Construction approval is hereby granted for a gallon r /� � s ; ' �• '�� r �` "�'� -- Septic Tank or _ Aerated treatment unit. q ^t NOf!�-' 4. V/2 A k 6 h 1 Absorption area (or dispersal area) computed as follows: / i r AZ 4 774 r /v.-5,i N SCF /4105 CC (71. J' Perc rate of one inch in __ minutes requires a minimum of sq. ft. of absorption area per bedroom. Therefore the no. of bedrooms x _ sq. ft. minimum requirement = a total of _sq. ft. of absorption area. • May we suggest: ,�/G/ / - /- / L a q cf. C' se ein 9 574 � r lri T1 "K . L /7. NA N _( Date_ /7(2..3/ r`I 7 ✓ Inspector `.> / FINAL APPROVALQk•SYS 40 0.1V + No system chat! be deemed to be in compliance with the Sewage Disposal Laws until the assembled system is approved prior to cover• ing any part. cJ z i-' .. Septic Tank access for inspection and cleaning within 12" of ground surface or aerated access ports above ground a e surface 'I7Z7 fi Proper materials and assembly. ' i�7 "•CJV / _.... �a i C !- /r / –' Trade name of septic tank or aerated treatment unit. r ' `< Adequate absorption (or dispersal) area. Adequate compliance with permit requirements. (.9 Adequate compliance with County and State regulations / requirements. ,!1 Other �I // /r7 C /C' o f C/ tin 4� {{ �)<� /r1 ee:f Otie. l b/ / 4 n , /�/ �/ � y Date // � InsPecto e t • ! RETAIN WITH RECEIPT RECORDS CONSTRUCTION SITE `CONDITIONS: 1. All Installation must complywith 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. Connection to or use with any dwelling or structures not approved by the Building and Zoning office shall automatically be a violation of a 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 months in )all or both.). Applicant: Green Copy Department: Pink Copy "° INDIVIDUAL SEWAGE DISPOSAL SYSTEM APP�LIC_ ATION `•' . ° Bonneville Pacific Co LIIYOfficia): ' JWNEA PProval by ••ratio ADDRESS American Atlas 1 en PcMeY Plant PHONE 625-1909 CONTRACTORsociates Inc. ADDRES 15�Grand Ave. Suite 210 G PERMIT REQUEST FOR: 1� �ODd s COPHOPIE (30 3)985_5468 Attach separate sheets(or)reportnshowingentire arealwithtr ( ) Repair 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 FACILITY: County Garfield Near what City of Town Rifle Lot Size Legal Description Drawin• Attached WASTES TYPE: ( ) Dwelling ( ) Transient Use ( X ) Commercial or Institutional ( ) Non- domestic Wastes ( ) Other - Describe BUILDING OR SERVICE TYPE: Live Seafood Facility Number of bedrooms -0- Number of persons 13 ( ) Garbage grinder ( ) Automatic washer SCURCE AND ( TYPE OF WATER SUPPLY: ( )Dishwasher Give depth of all wells within 180 feet of system: ) spring ( ) stream or creek If Supplied by community water, give name or supplier: City of Rifle /Bonneville Pacific GROUND CONDITIONS: Depth to bedrock: 15 to 20 ft. Depth to first Ground Water Table: N/A Percent ground slope: 290 &ISTANCE TO NEAREST COMMUNITY SEWER SYSTEM: N/A Was an effort made to connect to community system? N/A TYPE OF INDIVIDUAL SEWAGE DISPOSAL SYSTEM PROPOSED: I (x ) Septic Tank ( ) Aeration Plant ( ) Vault Privy ( ) Vault ( ) Composting Toilet ( ) Recycling, potable use ( ) Pit Privy ( ) Incineration Toilet ( ) Recycling, other use ( ) Chemical Toilet ( ) Other - Describe: Fl30'lAL DISPOSAL BY: (x ).Absorption Trench, Bed or Pit (. ) Underground Dispersal ( ) Evapotranspiration Sand ( ) Above Ground Dispersal ( ) Sand Filter ( ) Wastewater Pond ( ) Other - Describe: Vfti EFFLUENT BE DISCHARGED DIRECTLY INTO WATERS OF THE STATE? No • Page 2 "'• SOIL PERCOLATION TEST RESULTS: (To be completed by Registered Professional Engineer.) Minutes 28 per inch in hole No 1 Minutes 17 per inch in hole No 3 • Minutes 13 per inch in hole No 2 Minutes per inch in hole No. Name, address and telephone of RPE who made soil absorption tests•, Gordon,; Meyer Inc. 1512 Grand Ave., Suite 212 Glenwood Springs, 3D 81601 (303)945 - 1004`` Name, address and telephone of RPE responsible for design of the system:John C. Ward PhD. P.E. 7Q474 ti� rn-; Ever CO 80439 (303) 670 -3180 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"o be made and furnished by the applicant or by the local health department for purposes 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 adopted under Article 10, Title 25, C.R.S. 1973, as amended. The undersigned hereby certifies that all statements 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 under- stand that any falsification or misrepresentation may result in the denial of the application or revocation of any permit granted based upon said application and i• egal action for per- jury as provided by law. Date /O -7-$7 Signed SelleWeVag- 3g PLEASE DRAW AND ACCURATE MAP TO YOUR PROPERTY S ftr4.&,-QZr Fs.soc bVC See Attached Drawing • • Page . 3 ��/.� 1512 Grand Avenue, Suite 212 ,- SCHMUESER GORDON MEYER INC. iY•llaiN Is . -itt Glenwood Springs, Colorado 81601 • nor F rat (303) 945.1004 w` I CONSULTING ENGINEERS & SURVEYORS/ November 9, 1987 CD EC V E NOV 131987 Mr. Jim McMurray GARFIELD COUNTY Garfield County Sanitarian Garfield County Courthouse 109 Eighth Street Glenwood Springs, CO 81601 RE: Inland Mariculture Live Seafood Facility Design of Sewage Treatment Facilities Dear Jim: I have been retained by Dr. Larry Raymond, Inland Mariculture, to re- design and resubmit engineering calculations for the above- referenced facility. Since your prior review, we have met with Mr. John Blair of the Health Department to review the design criteria and procedures that his office would plan to follow. Our design utilizes the following de- sign considerations: 1) We have elected to split the projected wastewater flows into domestic flows and industrial flows. There will, therefore, be two separate systems to be considered. 2) The combined design flow of the two systems is 1,800 gpd. The breakdown will be presented below. 3) We will be submitting to Mr. Blair directly a Dopy of this ap- plication in case you wish for a courtesy review from the State Health Department. We feel that technically the review and approval procedure falls under your jurisdiction, but would welcome Mr. Blair's comments. DOMESTIC WASTEWATER DESIGN The design of the domestic wastewater system is based on the following: 1) Six day workers @ 15 gpd = 90 gpd. 2) Seven industrial workers @ 35 gpd = 245 gpd. 3) Total work force of 13 workers with average design flow of 335 gpd. 4) Design flow, based on 150 percent peaking factor, is 500 qpd. Please see the plan sheet for sizing of the drain field and septic tanks. November 9,. 19$7•" Mr. Jim Mddurtay Garfield County Sanitarian , Page two I ipternhh. TER sYb"IYM h y �i n —0' o • I will follow the same format aMi the previous submittal to you. I spent considerable time with Dr. Raymond discussing the operational characteristics of the industrial ,portion of the facilities. We have attempted to define the wastewater flows that we anticipate from the facility, recognizing that this system is a "custom designed" system and, therefore, we do not have field data from other facilities to show you to justify our design. I will outline our assumptions which we have made, emphasizing that we have attempted to be conservative in each area so that our facilities for wastewater disposal are, in fact, sufficient. The following production facilities will produce wastewater flows; de- scription of their operation and calculation of wastewater flows pro- duced is as follows: 1) Oyster tank residue - The residue or sludge from the oyster tanks is essentially an inert by- product of the process. It consists of inert portions of fecal matter, algae residue and other miscellaneous residues from the oysters themselves. The residue is collected from the hopper bottoms of each individual oyster tank and periodically 'pumped to a separate holding tank. This folding tank is designed so that the liquid residue is al- lowed to settle in the tank, with the overflow or clear portion of the mixture decanted to the oyster tanks and concentrating the inert, settleable portion settling out in this hopper bot- tom. The volume of the hopper bottom is approximately 69 gal - lons. For design purposes, we have assumed that this hooper bottom will be pumped once each day to the treatment system. I should point out that we, in fact, anticipate that the tank will be pumped out much less frequently than this, perhaps as little as twice a week but, again to be conservative, have assumed a daily discharge to the wastewater system. Therefore, the total design flow is the same, 69 gpd. 2) Oyster washer - The oyster washer resembles a "large commercial dishwasher ". The washer is used to recieve immature oysters which are shipped to the ;facility. As these oysters are re- ceived, they are put through the oyster washer for a pre- condi- tioning treatment before they are placed in the regular oyster beds. The washer is a continuous system which re- circulates the wash water. The total capacity of the washer is 42 gallons; at the end of a washing program, the 42 gallons would be discharged to the wastewater system. • It is anticipated that oysters will only be received two or thtee times a week. However, for design purposes, we have assumed that the oyster washer will be uti- lized daily and, therefore have used a design flow of 42 gpd. Tvember 9, 1987 Mr. Jim McMurray Garfield County Sanitarian Page three ' 3) Algal flume - In addition to the oyster beds, there'will be tanks in which ' algae' are raised for the food source for the oysters. The total volume of the algal flumes is 5,680 gallons. This volume mm�yy. hale to be recyloed at the rate. of one -half the total volume (2,840 gallons) per year. I emphasised "may" be- cause this is a very conservative assumption and it is entirely possible no turnover volume may be required. In the previous submittal to you, this was assumed to be a discharge flow to the system. Dr. Raymond has revised his piping layout so that, if the system is turned over, it will pumped at a relatively low rate back into the oyster tanks. We have calculated that the net evaporation from the oyster tanks is well in excess of 300 gpd and, rather than replacing that evaporative loss with a clean water source, it can be replaced with discharge from the algal flume during the time the volume is being changed over. Therefore, there will be no discharge to the wastewater system. 4) Pressure sand filters - This is, by far, the largest potential discharge to the disposals system. The discharge will consist of backwash hater from the.. eleven pressure sand filters. Before proceeding with the design considerations for these filters, it is important to note that, first of all, they are very different from traditional domestic . water filters in that they consist entirely of silica sand median. The water being filtered, is very clear with few suspended solids for filtration; the flow stream is also treated with hydrogen peroxide prior to being placed on the filter, resulting in almost total oxidation of any organic solids which may be present. The design of these filters is as follows: * Filter media - No. 20 silica sand. * Filter media depth - 1.13 feet. * Recommended backwash time - Two minutes per foot of media or 2.26 minutes. * Diameter of filter - Three feet or 7.07 square feet. * Recommended backwash rate - 20 gpm /sf. * Backwash rate - 140 gpm. We have made the assumption that each filter will be backwashed once every three days. Because of the extreme clarity of the water to be filtered, it is not felt that it is likely that backwashing will occur this frequently. Based upon eleven fil- ters, the daily discharge to the wastewater system will, there- fore, be 1,200 gpd. Hence, this will also be the design flow rate. Ntvenber 9, 1987 • Mr. Jim McMurray Garfield County Sanitarian Page four DESIGN SOMMARY • The design flow rate for the domestic disposal system will be 500 gpd. The design flow for the industGii+l'. wastewater ).fecilities will be as follows:: * Oyster tank residue - 69 qpd. * oyster wa §her - 62 gpd. • * Algal flume --zero ' * Sand filter system - 1,200 gpd: Zbtal - 1)500 gpd. � I trust that the above discussion is sufficient for your review needs. As I mentioned above, we have been conservative whereverpossible in determining the wastewater flows and we .feel that, based On our under - standing of the industrial production faciiities,,.the design is conser- vatively representative of the anticipated wastewater flows. I have tried to include some discussion of the production facilities in order to provide you with a clear understanding of the facilities and to fa- cilitate your review. If you do have any'guestions, Dr. Raymond and I would be more than happy to sit down with you to further review the design. Please note that I have forwarded a Dopy of this to Mr. Blair in Grand Junction. Respectfully submitted, SCHMUESER GORDON MEYER, INC. 1 *1 904)A%. De; W. Go • , n, P.E. *�PO46:'s ).p� • esident , O e'Z_�, :lec/7 66 r * A14507'W' �' cc: I• • Raymond 0 . dr e, • ., -Mr. John Blai'� S /Q ® �a OF CO. -- •