HomeMy WebLinkAbout47 Tigiwon Rd - Eagle Mine Cleanup Site - 220302400006INDIVIDUAL SEWAGE DISPOSAL .SYSTEM PERMIT EAGLE COUNTY ENVIRONMENTAL HEALTH DIVISION P.O. Box 179 - 500 Broadway • Eagle, Colorado 81631 Telephone: 328-8755 YELLOW COPY OF PERMIT MUST BE POSTED AT INSTALLATION SITE. Please call for final inspection before covering any portion of installed system. PERMIT NO. 1 4 3 4 OWNER: Eagle Mine-Superfund Site PHONE. 827-5523 MAILINGADDRESS: 47 Tigiwon Road, city: Minturn State: CO ap:_81645 APPLICANT: Rick McLaughlin PHONE: 458-5550 SYSTEMLOCATION: 47 Tigiwon Road TAX PARCEL NUMBER: LICENSED INSTALLER: ASI-RCC / West Hazmat Contraeting, TnC LICENSENO: 57-95 Nick Moon DESIGN ENGINEER OF SYSTEM: CL_a119h1 iT+ W!l a- Fnv' neers _T,td_ INSTALLATION HEREBY GRANTED FOR THE FOLLOWING: 1000 GALLON SEPTIC TANK ABSORPTION AREA REQUIREMENTS: SQUARE FEET OF SEEPAGE BED 84.25 SQUARE FEET OF TRENCH BOTTOM. SPECIAL REQUIREMENTS: Install as per Engineer's design... ENVIRONMENTAL HEALTH APPROVAL: DATE: CONDITIONS: 1. ALL INSTALLATIONS MUST COMPLY SOF E EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM REGULATIONS, ADOPTED PURSUANT TO AUTHORITY GRANTED IN 25- 10. 104. 1973. AS AMENDED. 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 STRUCTURE NOT APPROVED BY THE ZONING AND BUILDING DEPARTMENTS SHALL AUTOMATICALLY BE A VIOLATION OF A REQUIREMENT OF THE PERMIT AND CAUSE FOR BOTH LEGAL ACTION AND REVOCATION OF THE PERMIT. 3. CHAPTER IV, SECTION 4.03.29 REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM TO BE LICENSED. FINAL APPROVAL OF SYSTEM: (TO BE COMPLETED BY INSPECTOR): NO SYSTEM SHALL BE DEEMED TO BE 34 : J ??L A.tiC'c VriTH iriE EAGLE COUNTY eNI?:V:.?IIS.L SEWAGE DISPOSAL SYSTEM REGULATIONS UNTIL THE SYSTEM IS APPROVED PRIOR TO COVERING ANY PORTION OF THE SYSTEM. INSTALLED ABSORPTION OR DISPERSAL AREA: t SQUARE FEET. U I INSTALLED SEPTIC TANK: I C-'7 �C: ' GALLON DEGREES L I .�'7 FEET FROM V ` 0- ` `j' c-CZd IVi64- �•� SEPTIC TANK ACCESS TO WITHIN 9' OF FINAL GRADE AND PROPER MATERIAL AND ASSEMBLY YES _ NO COMPLIANCE WITH COUNTY / STATE REQUIREMENTS: 1--'YES _ NO do y a ANY ITEM CHECKED NO REQUIRES CORRECTION BEFORE FINAL APPROVAL OF SYSTEM IS MADE. ARRANGE A RE -IN CTI N f RK IS CORRECTED. COMMENTS: ENVIRONMENTAL HEALTH APPROVAL: DATE: ENVIRONMENTAL HEALTH APPROVAL: DATE: (RE-INSPE ION IF CESSA 'PLICANT / AGENT: RETAIN WITH RECEIPT RECORDS OWNER: :RMIT FEE PERCOLATION TEST FEE RECEIPT s rNFrKA INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT EAGLE COUNTY ENVIRONMENTAL HEALTH DIVISION P.O. Box 179 - 5an Broadway • Eagle, Colorado 81631 Telephone: 328-8755 YELLOW COPY OF PERMIT MUST BE POSTED AT INSTALLATION SITE. PERMIT NO. 1434 Please call for final inspection before covering any portion of installed system. OWNER: Eagle Mine-Superfund Site PHONE: 827-5523 MAILINGADDRESS:_ 47 Tl iwon Road, City: Minturn State: CO ZIP: 81645 APPLICANT:_ Rick McLaughlin PHONE: 458-555() SYSTEM LOCATION: 47 Tigiwon Road TAX PARCEL NUMBER: LICENSED INSTALLER: ASI-RCC / West Hazmat on ranting. Tne LICENSE NO: 57-95 Nirk Mann DESIGN ENGINEER OF SYSTEM: McLaughlin Water FnQinaarc T td INSTALLATION HEREBY GRANTED FOR THE FOLLOWING: 1000 GALLON SEPTIC TANK ABSORPTION AREA REQUIREMENTS: SQUARE FEET OF SEEPAGE BED 84.25 SQUARE FEET OF TRENCH BOTTOM. SPECIAL REQUIREMENTS:_ Install as per Engineer's design... ENVIRONMENTAL HEALTH APPROVAL: DATE: CONDITIONS: 1. ALL INSTALLATIONS MUST COMPLY hfEN S O HE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM REGULATIONS, ADOPTED PURSUANT TO AUTHORITY GRANTED IN 25- 10. 104. 1973. AS AMENDED. 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 STRUCTURE NOT APPROVED BY THE ZONING AND BUILDING DEPARTMENTS SHALL AUTOMATICALLY BE A VIOLATION OF A REQUIREMENT OF THE PERMIT AND CAUSE FOR BOTH LEGAL ACTION AND REVOCATION OF THE PERMIT. 3. CHAPTER IV, SECTION 4.03.29 REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM TO BE LICENSED. FINAL APPROVAL OF SYSTEM: (TO BE COMPLETED BY INSPECTOR): NO SYSTEM SHALL BE DEEMED TO BE IN COMPLIANCE WITH THE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM REGULATIONS UNTIL THE SYSTEM IS APPROVED PRIOR TO COVERING ANY PORTION OF THE SYSTEM. INSTALLED ABSORPTION OR DISPERSAL AREA: SQUARE FEET. INSTALLED SEPTIC TANK: GALLON DEGREES FEET FROM SEPTIC TANK ACCESS TO WITHIN 8" OF FINAL GRADE AND PROPER MATERIAL AND ASSEMBLY _ YES _ NO COMPLIANCE WITH COUNTY/ STATE REQUIREMENTS: YES _ NO ANY ITEM CHECKED NO REQUIRES CORRECTION BEFORE FINAL APPROVAL OF SYSTEM IS MADE. ARRANGE A RE -INSPECTION WHEN WORK IS CORRECTED. COMMENTS: ENVIRONMENTAL HEALTH APPROVAL: DATE: ENVIRONMENTAL HEALTH APPROVAL: DATE: (RE -INSPECTION IF NECESSARY) RETAIN WITH RECEIPT RECORDS APPLICANT / AGENT: OWNER: PERMIT FEE PERCOLATION TEST FEE RECEIPT # CHECK # (51-te Plan KURT be attached) - ZSDS Permit I _ l-130--� Building Permit APPLICAM I FOR 2XDrnDUAL BL"M6$ DIBPCs%L BYBTZK P$itX T ENVIRONMENTAL KEALTR OFFICE EAGLE COUNTY P. 0. sox 179 Z&GLE, Co 81:633, 329-875S/927-3823 (Basalt) PMMIT APPLICATION FEE $150.•00 PERCOLATION TEST FEE 5200.00 * MARE ALL ' XMITTANCE PAYABLE; ' TO: "EAGLE coUNTY TRFASURMgv + :tt#f#�,tf#x�,�#*#:*t**#*#stf,�t##ta+rt+��e#+t*f,t�r�:�,r�ts#ir�rfi#*###*#apt**t:#*#• �YJ � PROPERTY OWNER: _ N/A E /e� MAILING ADDRESS: 47 Tigiwon Road, Minturn. CO 81645 PHONE :(303)827-5E;Z3 APPLICANT/CONTACT PERSON., Rick McLaughlin PHONE:(303)4S - 550 LICENSED SYSTEMS C°OWMCTOlt: ASI-RCC (to be 1 iceQ5^d1_ PHONZ:(719)395-8625 CONTACT P.O. Box 3127 XXg UD": John Bowen ADDRESS: 2Q221 County Rd_ ' 1 q RIIPna 1/ i sto 81 1 1 lir,k��rrt�rie#��t*#�Rtt�!#�I�R�E�tf##f,t�Mir+Ryrkir*yirt#�4llrlf�44�k#•�t*i#+�trff*#+►�t•�k�e�ir#irltttft#�t PERMIT APPLICATION IS FOR: ( ) NEW INSTALLATION ( ) ALTERATION ( ) REPAIR LOCATION OF PROPOSED MIVIDUAL SEWAGE DISPOSAL SYSTEM: Legal Description: N/A Tax Parcel Number: - N/A �3 N/A :.� Lot Size: Physical Address: WTP. 47 Tigiwon Road, Minturn_ Cn 81h4S .BUILDING TYPE: (Check applicable category) ' ( ). Residential/Single ,Family Number of Bedrooms ( ) Residential/•Multi-ftmily* Number of Bedrooms (X) co=ercial/industrial# Type L4aterTreatment Plant. toilet, sink TYPE OF WATER SUPPLY: (Check applicable category) ( ) Well ( } Spring ( ) Surface ( } Public Name of Supplier: R 0 Treated PrQcesS Water. *These systems re ire esignxby a Registered Professional Engineer SIGNATURE: Date: Z� •*�lr�lrir+klkir�t t*ir�r�rffl�tirlt#�k*�Mtk�#r+fritirft�*lrt�R•R*�tidr�`y�if��t�i/*ii*fie#ieft4�!!*i�#f#fk## AMOUNT PAID: I RECEIPT 0 s .i.�..� DAT$ : CHECK f: CASHIER: Community Development Department (970)328-8730 Fax: (970) 328-7185 TDD: (970) 328-8797 EAGLE COUNTY, COLORADO October 19, 1995 Mr. Robert J. Neukirchner Eagle Engineering Services, Inc. 710 Kipling St., Suite 305 Lakewood, CO 80215 Eagle County Building P.O. Box 179 500 Broadway Eagle, Colorado 81631-0179 RE: Final of ISDS Permit No. 1434-95. Property located at: Viacom/Eagle Mine Site, 47 Tigiwon Rd., Minturn, CO. Dear Bob, This letter is to inform you that the above referenced ISDS Permit has been inspected and finalized. Enclosed is a copy to retain for your records. This permit does not imply compliance with any other Eagle County requirements. Also enclosed is a brochure regarding the care of the septic system. Be aware that later changes to your building or operation may require appropriate alterations of your septic system. If you have any questions regarding this permit, please contact the Eagle County Environmental Health Division at 328-8755. Sincerely, Raymond P. Merry, REHS Environmental Health Division Mgr. ENCL: Information Brochure Final ISDS Permit cc: Richard Parachini, CDPHE Gene Taylor, EPA Rick McLaughlin, MWE Files Community Development Department (970) 328-8730 Fax: (970) 328-7185 TDD: (970) 328-8797 EAGLE COUNTY, COLORADO Date: October 5, 1995 TO: West Hazmat Contracting, Inc. FROM: Environmental Health Division Eagle County Building P.O. Box 179 500 Broadway Eagle, Colorado 81631-0179 RE: Issuance of Individual Sewage Disposal System Permit No. 1434-94 Tax Parcel #? Property Location: Eagle Mine Super Fund Site, 47 Tigiwon Rd., Minturn, CO. Enclosed is your ISDS Permit No. 1434-94. It is valid for 120 days. The enclosed copy of the permit must be posted at the installation site. Any changes in plans or specifications invalidates the permit unless otherwise approved. Systems designed by a Registered Professional Engineer must be certified by the Engineer indicating that the system was installed as specified. Eagle County does not perform final inspections on engineer designed systems. Your TCO will not be issued until our office receives this certification. Permits issued before November 15, 1995 must be completed by December 11 1995. Permit specifications are minimum requirements only, and should be brought to the property owner's attention. This permit does not indicate conformance with other Eagle County requirements. If you have any questions, please feel free to contact the Environmental Health Division at 328-8755. cc: files McLaughlin Water Engineers, Ltd. LCi JO I'R.L.HLl I`I P14H I the LINLz P. 3 94. c INCN< row. 'If ti!0^,� 11-.liT�l� i! ,/o �. 11 vms.jgcoq,-t., ifmkr,.& + iiop�A y; n•..w [�.«.! 6_dl r�prr„1 Imo, COT, wf�QoQQoo i.r � tAWl ra � � vS!V•+F.S• ^J � v •la O�Oti, nDa. ���'D s.roN ONM 112 01 ..o ;4 C �IG o� _..._ .... _....... . _.....__.... r 0 ................_.... -........ . o ° lie ., ...._ --.-•-•-._ 4 dliz _�................. . �t I C1 74 IU - U f MULHUIUHLIN WH I LK ENG &JJ-4!5 U19 P.4 C�. �ex1llt,. Project 'title Project No. Date $ubject D%igned- Page.__�__�_ % - taw �z® V7.S ,0* S< . /........ T,*- 4-,v �.' IX2 V 3 ¢lv7� V V 7 da >MTA %S 3.5S " 90 -4q(o(; McLaughlinWater Engineers, Ltd. Project Title Project No. '7/ 03 Z ��Dpte Subject SEOT/L Sf-S T�i4,;7 -.S.s.So Designed Page P,C/26 71aly T,"T A S(J4 TS 3 /t ew -* .-)- f�/9a Co�/SifT/9i�/T' .Sy/G Gff9•��GTE,�STiG A4 W/fi Oa &,^-1 T c c ' CEL BTU yAq-s J All 7,V /V o 4'evav-0 4'4 z / S & /9'"0 015`1011-1 pit//- K F0,2 O/�E�H 7i�/� y�,�s or✓��L A T Ti�� �� T�i2- T2� i •���� T p��,ur C��cd�� Togs �.e,� �r�o o,� RAG o ��`�O/�Tio�✓s `,�o� rye US. ���'�Tr�_-,✓T of 7/ AOI _ ��',� MA�9SHi`7 IS® duo, /9GG c'5p/�L/FT FT ©� ���✓� ��- O�aPL_.'Ir /Y % r/5� iE ` AIV 7%rW,, r--- To ri,w� / b/� Gd/v#� to Fz Go/JS�PI/�T/!/fie ( ?1L F L01V/Li 14 1/-2o L©�o A,9-T.�v 9,.-O / Mel- aav Try S1 Z e (4W4w4� /.s /cvo�/GL 75w-S TH/fN Aneaa-� r� vely. Underground pollution .ion as the normal movement and water moves in the direc- r table, i.e., from the area of !r table. In general, the water -ound surface. For this reason, From wells or springs. Sewage aminate wells having higher Lions of disposal systems are rater in such wells as may be i disposal system on a lower and to the water bearing stra- ; necessary, therefore, to rely MW as i with lover surface elovations. stances for protection. Tanks n any source of water supply; e possible. within 5 feet .of any building, construction or seepage may )t be located in swampy areas, ral, the tank should be located available for the disposal field. [e location from the standpoint blic sewers may be installed at le in the household plumbing Effluent. --Contrary to popular belief, septic tanks do not accomplish a high degree of bacteria removal. Although the sewage undergoes treatment in passing through the tank, this does not mean that infecti- ous agents will be removed; hence, septic tank effluents cannot be considered safe. The liquid that is discharged from a tank is, in some respects, more objectionable than that which goes in; it is septic and malodorous. This, however, does not detract from the value of the tank. As previously explained, its primary purpose is to condition the sewage so that it will cause less clogging of the disposal field. Further treatment of the effluent, including the removal of patho- gens, is' effected by percolation through the soil. Disease producing bacteria will, in time, die out in the unfavorable environment afforded by soil. In addition, bacteria are also removed by certain physical forces during filtration. This combination of factors results in the eventual purification of the sewage effluent. Capacity. —Capacity is one of the most important considerations in septic tank design. Studies have proved that liberal tank capacity is not only important from a functional standpoint, but is also good economy. The liquid capacities recommended in Table 5 allow for the use of all household appliances, including garbage grinders. Table 5.—Liquid capacity of tank (gallons) [Provides for use of garbage grinders, automatic clothes washers, and other household appliances) Recommended Equivalent Number of bedrooms minimum tank capacity capacity per bedroom 2 or less .................................... 750 375 3................................................... 900 300 41 ................................................. 11000 250 I For each additional bedroom, add 250 gallons. Specifications for Septic Tanks Materials. —Septic tanks should be watertight and constructed of materials not subject to excessive corrosion or decay, such as concrete, coated metal, vitrified clay, heavyweight concrete blocks, or hard burned bricks. Properly cured precast and cast -in -place reinforced con- crete tanks are believed to be acceptable everywhere. Steel tanks meet- ing Commercial Standard 177-62 of the U. S. Department of Commerce are generally acceptable. Special attention should be given to job built tanks to insure water tightness. Heavyweight concrete block should be laid on a solid foundation and mortar joints should be well filled. The interior of the tank should be surfaced with two t/ inch thick coats of 29 Table 7.—Continued Type of Establishment Restaurants (kitchen wastes per meal served) .................... Restaurants additional for bars and cocktail lounges ........ Schools: Boarding.................................................................................... Day, without gyms, cafeterias, or showers ........................ Day, with gyms, cafeteria, and showers ............................ Day, with cafeteria, 'but without gyms, or showers ........ Service stations (per vehicle served) .................................... Swimming pools and bathhouses ............................................ Theaters: Movie (per auditorium seat) ................................................ Drive-in (per car space)........................................................ Travel trailer parks without individual water and sewer hook-ups (per space) .................................................. Travel trailer parks with individual water and sewer hook-ups (per space) ................................................ Workers: Construction (at semi -permanent camps) ........................ Day, at schools and offices (per shift) ............................ Gallons Per Person Per Day (Unless Otherwise Noted) 3 2 100 15 25 20 10 10 5 5 50 100 50 15 Separate systems may also be used for community bathhouses. When this is done, the total per capita flow must be broken down into its component parts, and some allowance should be made for the amount of sewage tributary to the different disposal systems. Table 8 (below) illustrates how this may be done where there are no definite data as to the exact distribution of flow. Table S.-Estimated distribution of sewage flows, in gallons per day per person Type of Waste YP � Volume, ;gallons per day per person Total Flow (gallons)... Kitchen wastes .................. Toilet wastes ...................... Showers, washbasins, etc... Laundry wastes ................ 30 40 50 75 100 10 15 15 10 7 15 18 10 - 10 -20 - 20 (Q� 10 25 25 15 15 30 35 20 ..ti wastes rrom tnese uses. Example: In a household contributing 75 gallons of sewage per day per person, as shown in column 4, an average breakdown for each of the four types of wastes listed might be about 10 gallons per day per person for kitchen wastes; 25 gallons u 1 per day per person for toilet wastes bathtubs, and washbasins; and ab, wastes. For certain types of new es be unable to obtain from his ber of patrons to be served by true in the case of restaurants areas, country clubs, and the I mates may best be made fro stalled. Table 9 indicates ai wastes per fixture at country Table 9.—Sewc Gallons F Type of fixture day per fixture Showers ........................... Baths................................ Lavatories ....................... Estimates of sewage quantiti• calculations based on the week. per person for showers and 7 wastes, both for the average reasonable. Table 10 shows one method discharged hourly during the 1 lar figures may be used for fair; Table 10.—Sew [During hou Gallons pt Type of fixture hour per fixture Flush toilets ................... Urinals ............................. ESTIMATES OF SOIL ABSORPTIC With information from percc to the results of test borings or sewage may be applied to a Cable 11 or from the corre- to a coif absorption system Maximum rate of sewage application n rate (time (gallons per square es for water foot er day)' for 1 1 inch) absorption trenches,' seepage beds, and seepage Ptu s ....... 1.6 13 ....... 0.9 ..... 0.8 ....... 0.6 tt receive wastes from garbage , and includes a statistical allow - wall area. not allow for wastes from machines. Discharge from tank system calls for extra over the calculated absorp- are installed, the absorption st over the calculated value. ving specifications for small nr in institutional effluents, ther institutions, such as a g facilities, may contribute ►m automatic washing ma- itutions should have their competent to place proper tributed. following examples, which soil absorption systems. For age per day to be disposed 10 z 0 8 I.- Ort -- ao d 116. CC t W W �- K 0 6 3 0 W W N CC 1i o � W o 4 N W 10- CD L c 1 � c t I Q; For Vt- standard trenches or seepage pits s 0 10 20 30 40 50 b PERCOLATION RATE IN MINUTES PER INCH (1) Figure 19.—Graph showing relation between percolation rate and allowable rate at - sewage application. Example I. —Absorption Trenches: Standard trench, 2 feet width. 5,000 gal./ day - 2.2 gal./sq. ft./day = 2,270 square feet of absorp- tion area required. 2,270 - 2 sq. ft./linear ft. = 1,135 feet of trench required. With garbage grinder only-1,135 + .20 (1,135) = 1,362 linear feet. With automatic washing machine only-1,135 + .40 (1,135) = 1,589 linear feet With garbage grinder and automatic washing machine-1,135 + .60 (1,135) = 1,816 linear feet. Example II. —Seepage Pits: Seepage pit 10 foot diameter; depth of effective absorption area 25 feet; let d = effective depth of pit in feet; D equal pit diameter in feet. Effective sidewall area equals total area needed. ,rD(d) = 2,270 sq. ft. 3.14 (10) (d) = 2,270. Solve for d, effective depth of pit = 72 ft. Obviously, more than one pit is required. Design for 3 pits, 10 ft. in diameter. 72=3=24ft. Use 3 pits, 10 ft. in diameter with an effective depth of 24 ft. 47 I EE September 28, 1994 Mr. R.W. Parachini Colorado Department of Public Health and Environment 4300 Cherry Creek Drive So. Denver, CO 80222-1530 RE: WTP Septic System Dear Dick: Eagle Engineering Services, Inc. The attached plan and calculations for a septic system for the Water Treatment Plant (WTP) have been prepared by McLaughlin Water Engineers are submitted for State review and approval. The specifications for the work are either presented on the plan or are included in the approved technical specifications for the Eagle Mine Superfund site. This plan for the underground piping, septic tank and leach field is submitted for approval at this time in order to allow installation of these facilities this construction season, if possible, as part of the approved work activities in the WTP area. The remainder of the system (toilet and wash basin) will be located adjacent to the entry on the northwest side of the WTP and will be covered by additional plans currently being developed by MWE. The attached calculations document the results of leach tests conducted at three locations and justify the design of the system as shown on the plans. Please expedite the review of this submittal in order to allow these facilities to be installed this fall. Because of the excavation required for the septic system, regrading/paving activities around the WTP may be delayed until the septic system can be installed. 710 Kipling St. Suite 305 • Lakewood, CO 80215 • (303) 235-0733 • (303) 235-0915 FAX Mr. R.W. Parachini September 28, 1994 Page Two Feel free to contact me if you have any questions on this submittal. Sincerely, EAGLE ENGINEERING SERVICES, INC. Robert J. Neukirchner Project Manager RJN/ccp Attachments cc: D.M. Ikenberry, CDPHE S. Sterling, MK G. Taylor, USEPA R.E. McLaughlin, MWE T. Lemon, MWE G.G. Lord, EES E. Rivlin, Paramount T.S. Nichols, DG&S COMMUNffY DEVELOPMENT DEPARTMENT (303)328-8730 October 14, 1994 Post -it® Fax Note 7671 Date paoges� / To 1 C LG IA t<< From /7a /� Co./Dept. � W E Co. Phone # Phone # 3a S _ S 7 Fax # O _ q 7 Fax # 302 '" 7l EAGLE COUNTY, COLORADO Mr. Richard W. Parachini, Project Manager Eagle Mine Superfund Site Hazardous Materials & Waste Management Division Colorado Department of Public Health & Environment 4300 Cherry Creek Drive South Denver, CO 80222-1530 Dear Mr. Parachini, 500 BROADWAY P.O. BOX 179 EAGLE, COLORADO 81631 FAX: (303) 328-7185 Thank you for sending the Eagle Mine septic system proposal for my review. Since the septic program is delegated to Eagle County by the Water Quality Control Division, it is appropriate that we permit this system locally. Enclosed is the packet of information which describes our permitting process. This packet, along with our local Individual Sewage Disposal System (ISDS) Regulations and a list of Licensed Systems Contractors, was sent to McLaughlin Water Engineers several weeks ago to the attention of Ted Lemen. The key requirements surrounding the process are the $150.00 fee for the ISDS permit; the need to identify a Licensed Systems Contractor to install the system; and the Registered Professional Engineer who designed the system must certify that the system has been installed according to the approved drawings. Please contact me if a contractor at the site would like to become licensed instead of selecting one on the list. The fee to become licensed is only $25.00 and involves a brief examination. It is my understanding that this system would serve the employee bathroom at the waste water treatment plant. I have reviewed the submittal and have identified the following deficiencies. There are no field notes included in the submittal which describe the methodology used for the percolation testing. It is important to know the depth at which the tests were performed to assure the proper burial depth of absorption trenches. The diameter of the percolation test hole is also worth knowing. Large diameter holes typically render slower percolation rates. It is also necessary to know if the holes were pre-soaked at least eight hours prior to testing. fw Mr. Richard W. Parachini October 14, 1994 Page 2 The notes should also describe the soil horizons encountered in the eight foot profile. It is mentioned that consistent soil characteristics were encountered. However, there is not a description of what soil type was encountered. The soil type will allow us to calculate a long term acceptance rate and would verify if the .8gal/ft2/day is an appropriate loading rate. The reference book used to estimate average daily flows is a 1967 publication. The 20gal/day/person/shift assumption used in calculating the average daily flows came from a chart which estimates individual fixture flows in a residential setting. Although this figure may be appropriate, a detailed description of the activity at the site would have put forth a better understanding of what flows the septic system is likely to receive and at what intervals throughout the day. It is my understanding, after speaking with Bob Neukirchner, that there are two twelve hour shifts, one with three employees and the other with two, in addition to an overlapping eight hour shift of one employee. The basis for estimating the average daily flows would begin looking at each shift with an assumption of how frequently an employee may need to use the bathroom. For example, if _employees needed to use the bathroom once an hour, there could be about 68 visits to the bathroom daily. This figure would then be multiplied by the volume of a flush, plus a small amount of water for hand washing. Typically, toilets use about five gallons/flush. However, low flush toilets use about 1.5 gallons. Tie septic system designer normally would have gained this information from the applicant. This difference in volumes would render an average daily flow range from 102gal/day to 340gal/day. Average daily flows are then multiplied by 150% for design or peak flows. The design flows, in this case, would range from 153gal/day to 510gal/day. The tank capacity is based on a thirty hour retention time of waste water to accomplish primary treatment. A tank of 750gal would be adequate for the above scenario. An oversized tank will slightly improve the waste water quality. The proposed 1000gal tank is adequate for flows up to about 800gal/day flows. Therefore, I would suggest they order the tank at their earliest convenience. A slope of 2% is recommended for the building sewer with no 900 elbows. Tank access must remain within 8" of finished grade as indicated on the plans. I Ott Mr. Richard W. Parachini October 14, 1994 Page 3 Eagle County sizes the absorption area of septic systems to expectantly achieve the best possible treatment of waste water. This is done by sizing the system to encourage the formation of a biological mat on the soil interface. 90% of the aerobic treatment of waste water occurs on the bacterial biomat. A system too large would not render itself to the prompt formation of the biomat, thus potentially releasing poorly treated waste water to the ground water system. The plan specifies one standard gravel trench 150' long and 2.5' wide. This would provide 375ft2 of absorption area. Without a better description of the soil conditions encountered, a determination of whether or not this is appropriate cannot be made. We consider a loading rate of 1.2gal/ft2/day to be a maximum loading rate, if the soils encountered were predominantly sand. The loading rate in the proposal of .8gal/ft2/day could be used for absorption area sizing if the soils encountered were sandy silts. Eagle County Regulations clearly state that at least two gravel trenches, each not exceeding 100' in length, be installed. This presents a problem with the submittal as only one trench is proposed. Most of the septic systems we have seen installed over the last several years have been technologies which do not use gravel. These technologies are allowed a 50% reduction in absorption area and are much quicker to install. The applicant should consider this, especially since a gravel system would clearly require a minimum of two trenches when only one trench was specified. I'm assuming that you are evaluating the proposal on the basis of ground water hydrology impacts. Therefore, my review is specifically focused on conformance with local criteria. I spoke briefly with Mr. Neukirchner about these deficiencies who advised me to speak directly with either Ted Lemen or Rick McLaughlin of McLaughlin Water Engineers. I've not had a return call from them. Please call me with any questions. Sincerely, Raymo P. erry, REH Environmenta Health Manager cc: Keith P. Montag, Director of Community Development COMMUNITY DEVELOPMENT DEPARTMENT (303)328-8730 EAGLE COUNTY, COLORADO October 21, 1994 Mr. Robert J. Neukirchner, President Eagle Engineering Services, Inc. 710 Kipling Street, Suite 305 Lakewood, CO 80215 Dear Mr. Neukirchner, 500 BROADWAY P.O. BOX 179 EAGLE, COLORADO 81631 FAX: (303) 328-7185 Enclosed is the application to obtain an Individual Sewage Disposal System (ISDS) permit, along with the ISDS Regulations, application and examination for a contractor on the site to become a Licensed Systems Contractor. ISDS permits are issued exclusively to entities licensed by Eagle County to install septic systems. Please be aware that there exists a specific time frame, noted on page 2 of the enclosed Regulations which bring the ISDS program to a halt around December 1 each year. I received a FAX from McLaughlin Water Engineers moments ago addressing my concerns, but have not had an opportunity to review the letter. Ted Lemen telephoned and said all of the concerns have been addressed. Should I need further clarification, I will call him directly. There is no question that the 1000 gallon tank can be ordered. If you have further questions, please call me at 328-8757. Sincerely,, --- Raymond P. Merry', REHS Environmental Health Manager cc: Richard W. Parachini, HMWMD, CDPH&E Keith P. Montag, Director of Community Development McLaughlin Water Engineers, Ltd. 2420 Alcott Street, Denver, Colorado 80211 (303) 458-5550 October 21, 1994 Facsimile (303) 480-9766 RONALD C. McLAUGHLIN HALFORD E. ERICKSON WILLIAM R. KENDALL RALPH L. TOREN TERRENCE P. KENYON GEZA E. KMETTY RICHARD E. McLAUGHLIN GENE A. BURRELL MICHAEL E. MERCER JOHN M. PFLAUM MICHAEL R. GALUZZI Raymond P. Merry, REHS SCOTT E. LEHMAN N S. KOLHTAD Environmental Health Manager R. JABRI LIN G. DEAN DEROSIER EDWARD D. BAIN Community Development Department BRIAN E. CHEVALIER Y Y PAUL D. ZACHARY P.O. Box 179 J. HAROLD ROBERTS Eagle, Colorado 81631 LEANER L. UY PETRAMALA DANIEL M. RONALD D. LUCERO RE: Septic System at Eagle Mine Dear Mr. Merry: I apologize for not supplying as much information as you needed for the septic system at the Eagle Mine. At the time, we were told that a permit wasn't necessary and therefore, the information was general in nature. I will elaborate and. address your concerns. Figure and Table references are to the U.S. Department of Health, Education, and Welfare, Manual of Septic Tank Practice, Publication N2 526. Percolation Test Three percolation test holes were dug to a depth of three feet and then a 6-inch diameter post hole digger was used to go down another foot for the percolation test. The location of the test holes is shown on the drawing of the septic system. A profile hole was dug to a depth of eight feet adjacent to hole N2 2. No groundwater was found and the soil is red -brown silty fine to coarse gravel and cobbles with some boulders. The test holes are still open if you would like to inspect them. The percolation holes were soaked for approximately 20 hours and then the test was begun. The water level was checked every 30 minutes for 41/2 hours with the last 30 minutes used for the percolation rate. Please notice that I revised the absorbtion rate down to .65 gallons per W. This corresponds with the worst test hole, N2 3, which was only I" /hr. Actually, I think we were next to and on top of a rock. A conservative rate of 60 minutes per inch yields .65 gallons per ft2 per day (Fig. 19, pg 47). The number of people on site was derived from: 2 people, 24 hrs/day, 7 days/wk. One person, 8 hrs/day, 5 days/wk. This is an average of 2.24 men/day/shift. I used Table 8 to estimate flow since the other tables included typical residential waste including showers, cooking, etc. Twenty gallons per day per person seemed to be a reasonable number from that table. The calculations were based on these numbers. The total amount of 2.5 ft wide trench would be 85 ft. I agree with your suggestion to use a 1.5 safety factor. ASPEN, CO TULSA, OK PHOENIX, AZ (303)925-1920 (918)582-6800 (602)248-7702 COMPLETE ENGINEERING SERVICES IN: WATER RIGHTS AND RESOURCES WATER TREATMENT AND DISTRIBUTION SUBSURFACE DRAINAGE IRRIGATION FOUNTAINS STORM DRAINAGE AND FLOOD CONTROL WASTEWATER COLLECTION TREATMENT AND REUSE FIRE PROTECTION WATER BASED RECREATION SPECIALTY HYDRAULICS RATE STUDIES AND UTILITIES ECONOMICS 85 * 1.5 =128 ft. I also agree that the 150 ft long trench is longer than recommended so we will modify this with 2-75' trenches, 10 feet apart. The second trench will be parallel and will use a serial type connection to accommodate an elevation change of approximately one foot. We chose to use 150-feet of trench because this is a very small system and since we would have the equipment on site, it seemed wise to go ahead and make it plenty large so it wouldn't be necessary to go in there again at a later date. As to actual flow calculations, I took an unscientific survey of our coffee drinking office workers, and came up with an average of 6.5 flushes per day including one heavy water drinker. We do intend to use a low volume toilet (1.5 gal/flush) since usable water at the site is scarce. Using your logic and adding one gal/flush for wash basin and miscellaneous use: 6.5 * 24/16 * 2.5 * 2.24 = 54.6 gallons per day. 54.6/.65 = 84.25 ft' of trench. 84.25 ft2/2.5 ft2 = 33.6 feet of 2.5 foot wide trench. We are including clean -outs- and inspection ports per your suggestion. Very truly yours, McLaughlin Water Engineers, Ltd.. Ted Lemen cc: Bob Neukirchner, Eagle Engineering CEL:es 91-039.00 CEL-1 2 STATE OF COLORADO Roy Romer, Governor Patricia A. Nolan, MD, MPH, Executive Director 01F-co� Dedicated to protecting and improving the health and environment of the people of Colorado �e g 4300 Cherry Creek Dr. S. Laboratory Building Denver, Colorado 80222-1530 4210 E. 11th Avenue Phone (303) 692-2000 Denver, Colorado 80220-3716 1876 " (303) 691-4700 Colorado Department of Public Health October 25, 1994 and Environment Mr. Robert Neukirchner Eagle Engineering Services, Inc. 710 Kipling St., Ste 305 Lakewood, CO 80215 Re: Water Treatment Plant Septic System Comments (EAG 6.1.9.3) Dear Bob: I have reviewed your September 28, 1994 correspondence regarding the construction of a septic system for the Water Treatment Plant (WTP) at the Consolidated Tailings Pile (CTP). I do not have any technical comments or concerns with regards to the remedial actions at the Eagle Mine site. You and I have had subsequent discussions related to the requirements for a septic system permit at the Eagle Mine site. The State has determined that a septic system permit is required in this instance. The construction of a septic system at the site is not a required remedial action and therefore is not exempt from the permitting limitations under the Remedial Action Plan. The construction of a septic system must comply with all applicable state and local requirements. The septic system regulatory program has been delegated to Eagle County by the Department of Public Health and Environment Water Quality Control Division (WQCD). I have forwarded a copy of the plans and specifications to Ray Merry at the Eagle County Community Development Department for review and approval. I understand that you and Ray have had several conversations regarding the permitting requirements. Eagle County can assist you as necessary to complete the permitting and construction activities for the septic system. State approval of the final plans and specifications will be contingent upon complying with all permitting substantive requirements coordinated through Eagle County. I have attached past correspondence from Eagle County for your information. IIIIB B AIRMMcLaughlin Water Engineers, Ltd. 2420 Alcott Street, Denver, Colorado 80211 (303) 458-5550 October 26, 1994 Facsimile (303) 480-9766 RONALD C. McLAUGHLIN HALFORD E. ERICKSON WILLIAM R. KENDALL RALPH L. TOREN TERRENCE P. KENYON GEZA E. KMETTY RICHARD E. McLAUGHLIN GENE A. BURRELL MICHAEL E. MERCER JOHN M. PFLAUM MICHAEL R. GALUZZI Environmental Health Office — Eagle County BRI N S KOLHSTAD P.O. Box 179 R. JAMES McLAUGHLIN G. DEAN DEROSIER Eagle, Colorado 81631 EDWARD D. BAIN BRIAN E. CHEVALIER PAUL D. ZACHARY J. HAROLD ROBERTS LEANDER L. URMY DANIEL M. PETRAMALA RE: ISDS Permit Application for Eagle Mine Site Water Treatment Plan Septic RONALD D. LUCERO System Dear Sirs: The attached application and permit application fee for an ISDS Permit for a septic system at the Eagle Mine Site Water Treatment Plant is based on discussions with Mr. Ray Merry, ECEH. We are submitting this application and fee even though we believe we are not required to apply for or be subject to an ISDS permit or any other County permit for the subject system, and we reserve all rights to assert this position at any time. This position is based on the fact that the Eagle Mine Site is designated by EPA as a Superfund Site and the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) in Section 121 exempts actions at Superfund sites from the need to obtain local, State, or federal permits providing such actions meet the substantial requirements of such permits. The attached plan for the proposed septic system has been reviewed by Ray Merry and we have made certain modifications based on his comments. Your expedited review and approval is requested. Very truly, yours, Richard E. McLaughlin Enclosure REM:es/91-039.00/REM-7 ASPEN,CO TULSA,OK PHOENIX, AZ (303)925-1920 (918)582-6800 (602)248-7702 COMPLETE ENGINEERING SERVICES IN: WATER RIGHTS AND RESOURCES WATER TREATMENT AND DISTRIBUTION SUBSURFACE DRAINAGE IRRIGATION FOUNTAINS STORM DRAINAGE AND FLOOD CONTROL WASTEWATER COLLECTION TREATMENT AND REUSE FIRE PROTECTION WATER BASED RECREATION SPECIALTY HYDRAULICS RATE STUDIES AND UTILITIES ECONOMICS COMMUNITY DEVELOPMENT DEPARTMENT (303)328-8730 EAGLE COUNTY, COLORADO December 2, 1994 Eagle Mine Superfund Site 47 Tigiwon Rd Minturn, CO 81645 Dear Applicant, 500 BROADWAY P.O. BOX 179 EAGLE, COLORADO 81631 FAX: (303) 328-7185 The Environmental Health Division would like to notify you to make a formal request to extend your Individual Sewage Disposal System(ISDS) Permit #1434-94 into the 1995 construction year. The Environmental Health Division discontinued percolation tests on November 15, 1994 and final inspections on December 2, 1994 due to climatic conditions. ISDS permits are active for 120 days after the date of issue if no Building Permit has been issued for the same property. If a Building Permit has been issued for the same property the ISDS will expire at the same time as the building permit. If you still plan to apply for a Building Permit this year or in the early months of 1995 you will need to have a percolation test conducted before your Building Permit will be released. You will have to contact a Registered Professional Engineering(RPE) firm to conduct your percolation test. If you have had your permit issued and have not had your final inspection completed, but plan on constructing the system in the next few weeks, please give our office a call and we will evaluate your permit on a case by case situation. Please give the Environmental Health office a call at 328-8755, if you have any questions regarding your permit extension process. cc: ISDS Permit #1434-94 File i-,15q October 18, 1995 Ray Merry Dave Nowakowski Eagle County P.O. Box 179 Eagle, Colorado 80631-0129 RE: Eagle Mine Building Addition Gentlemen: McLaughlin Water Engineers, Ltd. 2420 Alcott Street, Denver, Colorado 80211 (303) 458-5550 Facsimile (303) 480-9766 . RONALD C. McLAUGHLIN EEOM. EISEL HALFORD E. ISON WILLIAM R. KENDALL jJ RALPH L. TOREN TERRENCE P. KENYON RICHARD E. McLAUGHLIN GENE A. BURRELL MICHAEL E. MERCER JOHN M. PFLAUM MICHAEL R.GALUZZI SCOTT E. LEHMAN BRIAN S. KOLSTAD G. DEAN DEROSIER EDWARD D. BAIN BRIAN E. CHEVALIER RONALD J. MCLAUGHLIN J. HAROLD ROBERTS LEANDER L. URMY DANIEL M. PETRAMALA RONALD D.LUCERO We appreciate the assistance in expediting the building permit for the building addition. As suggested, we can inspect the construction of the building to further expedite the construction and reduce the effort required by the County. Inspection will be performed by myself (P.E. N° 25762), Greg Lord (P.E. N° 29120) and members of staff under our direct supervision. A sealed set of record drawings will be supplied to the County upon completion. Very truly yours, /'V !�- 0 ' Richard E. McLaughlin Transmitted via fax: (970) 328-7185 — 10/18/95 cc: Bob Neukirchner, EES John Muirhead REM:es 91-039.00 REM-6 ASPEN, CO TULSA, OK PHOENIX, AZ (970) 925-1920 (918) 582-6800 (602) 248-7702 COMPLETE ENGINEERING SERVICES IN: WATER RIGHTS AND RESOURCES WATER TREATMENT AND DISTRIBUTION SUBSURFACE DRAINAGE IRRIGATION FOUNTAINS STORM DRAINAGE AND FLOOD CONTROL WASTEWATER COLLECTION TREATMENT AND REUSE FIRE PROTECTION WATER BASED RECREATION SPECIALTY HYDRAULICS RATE STUDIES AND UTILITIES ECONOMICS EAGLE MINE-SUPERFUND SITE 1434-94 47 Tgiwon- Road: JOB CIO. BILL TO DATE STARTED DATE COMPLETED DATE. BILLED ro ELL—/ Z2 I — Y�yN — irr , - -� — JOB COST SUMMARY dAdWiwn,-(-,k ��,� 61TOTAL TOTAL SELLING PRICE MATERIAL TOTAL LABOR INSURANCE SALES TAX MISC. COSTS TOTAL JOB COST GROSS PROFIT LESS OVERHEAD COSTS % OF SELLING PRICE NET PROFIT ,JOB FOLDER ProdUct 278 ®® NEW ENGLAND BUSINESS SERVICE, INC., GROTON, MA 01471 JOB FOLDER a Printed in V.S.A. ID A�' 51JN \ �� \• 'j FfPOV/GL� FiPt7V/LLcEJI�A/15/G1/.�,01/T 4 TI,AZE PAD W/7)W /� \ AVPAVbt�9VT 6 6Z'PE PI _PAD�j : t \ DISCHAR E R M � TREAT>�NT ?' 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OV \Z.lPl�ACE Q4C�t'FEL I I !� r r 40RAGL� TCPSOC 01/Sr�PFAG� a WA 725P 7E TALL Plf =- i20r 6°TLEAC "FAff_D.t 7FST A T -go PS/ QFi�P6'ID1 F0P2 AAXR5' M4XLGtSS <77P/C4L1 a 0.6 GW .170 10 FT. - rvt�rx7� ""4 77CA6FaP TAt";6A44A1XA Q Z NWz I1%ow w ! I ��, ' ? ExC.4 VA770%6 AAD AnW77CIAW a40,19" SMFAb7F4 -_1 I r l 4FlMcUIZA m I 100,"„',+ o;,,� PARAMOUNT COfVIMUNICAMONS INC. =! 00aEAGLE MBE r WAS�B7 l s - 2 62 �e _ A57UD448 +V5 _! ! , ! ! � � ! � �! I til ! I . O61 v4'/ XES >>Q 6i p&J.4L AVPY{.i �/ o•�e••"N•••i v`\\`\ - - � LW C SEPTIC SYSTEM 2'-6" I:tgl ECT NUMBER MIN. -039.000 LEACH F LD TRENCH DETAIL "D" A.1' McLaughlin Water Engineers, Ltd. No Scale DESIGN:'" 2420 Alcoa Street Denver Co. 80211