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HomeMy WebLinkAbout10775 Hwy 6 - 211104200001Work Classification: NewPermit Address Owner Information Permit Status: Under Review Project Address 211104200001 Permit Type: OWTS Permit Permit NO. OWTS-11-12-8432 Expires: N/A Issue Date: Not Issued Parcel No. 010775 Hwy 6 RD GYPSUM AREA, CO Private Wastewater System Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970)328-8755 Fax: (970)328-8788 Phone: Cell: Inspection For Inspections call: (970) 328-8755 Inspections: IVR PhoneEngineer(s) (801)691-5956SHAWN HERRING Contractor(s)Phone Primary ContractorLicense Number Permitted Construction / Details: This provisional permit is being issued to the owner to indicate that the detailed 2012 engineering report and site plan dated October 31, 2012 demonstrate that the Eagle Valley Clean Energy biomass facility employee bathrooms can be served by an on-site wastewater treatment system. Identification of a licensed installer and release of the construction permit will occur when site conditions are suitable to install the system (unfrozen and dry soils). Issued by: Environmental Health Department, Eagle County, CO January 09, 2013 Date Customer Copy Terri Vroman CONDITIONS: 1. THIS PERMIT EXPIRES BY TIME LIMITATION AND BECOMES NULL AND VOID IF THE WORK AUTHORIZED BY THE PERMIT IS NOT COMMENCED WITHIN 120 DAYS OF ISSUANCE, OR BEFORE THE EXPIRATION OF AN ASSOCIATED BUILDING PERMIT 2. ALL INSTALLATIONS MUST COMPLY WITH ALL REQUIREMENTS OF THE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM REGULATIONS ADOPTED PURSUANT TO AUTHORITY GRANTED IN C.R.S. 25-10-101, et seq., AS AMENDED 3. 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 WILL RESULT IN BOTH LEGAL ACTION AND REVOCATION OF THE PERMIT 4. CHAPTER IV, SECTION 4.03.29 REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM TO BE LICENSED Work Classification: NewPermit Address Owner Information Permit Status: Under Review Project Address 211104200001 Permit Type: OWTS Permit Permit NO. OWTS-11-12-8432 Expires: N/A Issue Date: Not Issued Parcel No. 010775 Hwy 6 RD GYPSUM AREA, CO Private Wastewater System Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970)328-8755 Fax: (970)328-8788 Phone: Cell: Inspection For Inspections call: (970) 328-8755 Inspections: IVR PhoneEngineer(s) (801)691-5956SHAWN HERRING Contractor(s)Phone Primary ContractorLicense Number Permitted Construction / Details: This provisional permit is being issued to the owner to indicate that the detailed 2012 engineering report and site plan dated October 31, 2012 demonstrate that the Eagle Valley Clean Energy biomass facility employee bathrooms can be served by an on-site wastewater treatment system. Identification of a licensed installer and release of the construction permit will occur when site conditions are suitable to install the system (unfrozen and dry soils). Office Copy January 09, 2013 Issued by: Environmental Health Department, Eagle County, CO Date Terri Vroman CONDITIONS: 1. THIS PERMIT EXPIRES BY TIME LIMITATION AND BECOMES NULL AND VOID IF THE WORK AUTHORIZED BY THE PERMIT IS NOT COMMENCED WITHIN 120 DAYS OF ISSUANCE, OR BEFORE THE EXPIRATION OF AN ASSOCIATED BUILDING PERMIT 2. ALL INSTALLATIONS MUST COMPLY WITH ALL REQUIREMENTS OF THE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM REGULATIONS ADOPTED PURSUANT TO AUTHORITY GRANTED IN C.R.S. 25-10-101, et seq., AS AMENDED 3. 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 WILL RESULT IN BOTH LEGAL ACTION AND REVOCATION OF THE PERMIT 4. CHAPTER IV, SECTION 4.03.29 REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM TO BE LICENSED 10/30/12 Eagle Count y Government M ail - Re: Eagle Valley Sept ic Design 1/2https://mail.google.com/mail/ca/?ui=2&ik=1141485fc1&view=pt&search=sent &m sg=13ab2f 20a03b0173 Ra y Me rry <ra y.me rry@e a gl e county.us> Re : Eagle V alle y Se ptic De sign Ra y Me rry <ray .merry@eaglecounty .us>Tue, Oct 30, 2012 at 12:32 P M To: Ric k Mey er <rick @ds iengineering.net > Cc: #environment <environment@eaglecount y .us >, Jim Hanc ock <Jim@townofgy ps um.c om> Rick , Your c lient, Eagle Valley Clean Energy (EVCE), c an find t he On-s it e W ast ewat er Treat ment Sy stem (OW TS) applic ation form on-line and c an submit the $800 fee in the form of a c hec k made pay able to the E agle County Treas urer, along with the applic ation to our offic e at P O Box 179, Eagle CO, 81631. EVCE will need to identify a lic ens ed c ont rac tor (the list is also available via t he s ame link ) t hat will rec eive t he permit to do the work and you as the des ign engineer will need to c ert ify t he installation when it is finis hed and provide us with an as -built drawing before the building c an be oc c upied. As you are probably aware, it is inappropriat e t o inst all t he s ys tem while the ground is wet or froz en as this would have an advers e effec t on t he s oil treat ment area and ot her component s t hat are exposed t o freez e/thaw conditions . Sinc e the ins tallers lic ense is valid during the calendar year, EVCE may c hoos e to as s ign an ins taller nex t s pring when the work is lik ely to be c onduct ed. Be aware that Colorado State Law (25-10-101, et seq) prohibits the is suanc e of building permits without a septic sy st em permit. The Town of Gypsum may require the OW TS permit to be submitt ed along with the building permit. Even though we've yet t o receive payment t o initiate our permitting proc es s , I took the libert y t o review y our des ign and have the following questions or c omment s : Sinc e this property is loc ated wit hin the Town of Gyps um and s inc e the public s ewer is wit hin 400 feet of t he st ruc ture, it is import ant for us to receive doc umentation that the Town has determined that it is not feas ible to connect to the more reliable public s ewer line or is otherwise not interes ted in s erving this fac ility. Furthermore, pleas e reiterat e t hat t he wast ewater the s y st em will rec eive is from the employee bat hrooms and does not have the pot ent ial t o (or will not) rec eive any indus trial proc ess wat er. You mentioned in y our report that E agle County recommended a partic ular manufac turer of t he s elect ed tank and it s hould be noted that we don't mak e s pec ific recommendations regarding manufact urers. Referenc e t o FLXX was intended to be in the c ont ext of one of many manufac turers that can s upply an acc ept able sept ic t ank and we have no preferenc e regarding the t ank material (fiberglass , plas tic, composit e, et c .). W ould y ou please amend y our report to remove this referenc e? HP Geotec h made a recommendation of using a Long Term Acc eptanc e Rate (LTAR) of 0.4 gallons per s quare foot per day but this value was not us ed in y our calculation for s y s tem s iz ing. Inas much as this won't have an effect on changing the overall area depic ted in your des ign, y ou may want to have y our report indic ate that y ou us ed the LTAR for det ermining a minimum area since it is s tandard prac tic e t o do s o. This means that the des ign flow (4 employ ees @ 35 gallons /employ ee multiplied by 150% = 210 gallons/day ) s hould be divided by t he LTAR of 0.04g/sq.ft./day to arrive at a minimum area of 525 square feet, as oppos ed to us ing the c alculat ion included in your report. It is not ed that t he minimum soil treatment area nec es s ary is is about one t ent h of what is s hown on t he plans . In other words , my calc ulations reveal that if us ing the Infiltrator Q4 t echnology, about 27 c hambers would s uffice as oppos ed to the 212 shown on the plans . It is perfec tly fine to oversiz e t hat area so long as the sy s tem is not des igned to serve over 2,000 gallons per day. Since the t ank is of 1,000 gallon c apacit y , the sy s t em is not des igned to handle t hat load. The s tat e of Colorado defines a s ewage treatment work s (major s ewer s ys tem as 10/30/12 Eagle Count y Government M ail - Re: Eagle Valley Sept ic Design 2/2https://mail.google.com/mail/ca/?ui=2&ik=1141485fc1&view=pt&search=sent &m sg=13ab2f 20a03b0173 would s erve a large development or t own) as one that is des igned to rec eive 2,000 gallons of wastewater or more per day , neces sit ating s tate review, approval, permitting and disc harge monit oring. I just wanted y ou to be aware of this and as des igned, it is not an iss ue due to the s mall t ank siz e. If EVCE will be disc harging indus trial proc ess was tewater, they will need to obt ain the proper permit from the W ater Qualtiy Cont rol Divis ion. One last minor note is that t he layout of the trenc hes don't follow the t opographic al c ontours on the propert y whic h c aus es the level t renc hes t o be inst alled either more s hallow t han des ired or deeper than des ired s ince the bottom of the trenc hes are to be level. I didn't see the sc ale for the c ont our lines but my gues s is t hat the s ite is fairly flat and this is sue is probably not important s inc e the difference in trench bott om elevation is probably less than a foot ac ros s the length of any t renc h. I k now this is a lot of information and apologiz e for that. I jus t wanted to be clear and I hope I acc omplis hed that. I'll be out of the offic e unt il November 6 and I wanted t o k eep this proc es s moving forward. Thank s. On Mon, Oc t 29, 2012 at 9:05 AM, Ric k Mey er <rick @ds iengineering.net> wrote: Hi, I s ent a propos ed septic des ign t o Laura t his morning for y our review. The projec t is loc ated in Gy ps um. My c lient would lik e to k now if he s hould fill out and send in t he application for permit now. Can y ou please advis e as t o t he bes t time t o do this ? -- Thank s , Rick Meyer, PE DSI Engineering (801) 380-2113 -- Ray mond P. Merry , RE HS Direct or of Environmental Health PO Box 179 Eagle, CO 81631 970.328.8757 ray .merry @eaglec ounty .us P Thank s for not printing elect ronic media EAGLE COU i Re: Gypsum- EVCE Septic system Ray Merry <ray.merry@eaglecounty.us> Kendric Wait<kendric@evergreencleanenergy.com> Mon, Nov 19, 2012 at 2:25 PM To: Ray Merry <ray. merry @eaglecounty. us>, Jerry Law <Jerry@townofgypsum.com> Cc: Jim Hancock <Jim@townofgypsum.com>, "sherring@regiondesignllc.com" <sherring@regiondesignllc.com>, Mark Gunther <mgunther@townofgypsum.com>, #environment <environment@eaglecounty.us>, Rick Meyer <rick@dsiengineering.net> Thanks, Ray. Eagle Valley will assign the contractor next spring or summer as we understand the licenses run with the calendar year. Thanks, Kendric Wait On 11/19/12 2:22 PM, "Ray Merry" <ray. merry@eaglecounty. us> wrote: >Thanks, Jerry. >As far as we're concerned, they can get their building permit as our OWTS >permit will remain "provisional" until they assign a contractor that is >properly licensed to install septic systems. >Rick, please note the number of employees can go up to 6. 1 don't >believe this makes a difference in the system sizing criteria that you've >proposed but it may make sense to have the larger number of chambers used >in the soil treatment unit instead of 27 being the minimum - I think it >was 63? >On Mon, Nov 19, 2012 at 1:55 PM, Jerry Law <Jerry@townofgypsum.com> wrote: > Ray, >The Town of Gypsum has decided to allow the Eagle Valley >Clean Energy site to use an ISTS septic system because of their low usage >(restroom for two to six employees on shift), and their location being a >little >over 500' from the closest sewer main south of the railroad tracks. >The two recommendations that I have from >the latest septic layout design and grading plan (that I've seen) are: > 1) move the septic tank and leach field as far to the south and west as >possible to allow a crane or maintenance vehicles to drive around the >building. The leach field needs to be "fenced" or blocked from >vehicles crushing the chambers, as often happens in industrial sites. >Placing the southern row of chambers at the toe of the berm will assure >you >don't exceed the soil cover requirements as shown on the initial design. >2) regrade the area south and west of the parking lot pavement to drain >to the west; then north. The last revision I saw created a pond south of >the pavement --which means the leach field will act as a dry -well. >Thank you for your review, >Jerry > Law >524-1744 >Raymond P. Merry, REHSDirector of Environmental Health >PO Box 179 >Eagle, CO 81631 > 970.328.8757 > ray. merry@eaglecounty.us >P Thanks for not printing electronic media 10/30/12Eagle County G overnment Mail - Re: Gypsum power plant sept ic design 1/2https://mail.google.com/mail/ca/?ui=2&ik=1141485fc1&view=pt&as_from =Laura.Fawcet t%40eaglecoun… Ra y Me rry <ra y.me rry@e a gl e county.us> Re : Gy psum pow e r plant se ptic de sign La ura Fa w ce tt <laura.fawcett@eaglec ounty.us>Mon, Oc t 29, 2012 at 8:12 A M To: Ric k Mey er <rick @ds iengineering.net > Cc: #environment <environment@eaglecount y .us > Hi Ric k, It is bes t t o s end your email c orres pondence to environment@eaglec ounty.us. That way our entire offic e c an be in the c ommunication loop. Thank y ou for submitting the des ign. I forwarded your original email to every one, sinc e I wouldn't be able to look it over until later this week .. Laura On Mon, Oc t 29, 2012 at 7:11 AM, Ric k Mey er <rick @ds iengineering.net> wrote: Laura, Here is a revised plan for the propos ed s eptic s y s tem in Gy ps um. I believe y our c omment s below were inc orporated correct ly . Let me k now if y ou have any ques tions or if I am way off bas e. Thank s , Rick Meyer On W ed, Sep 26, 2012 at 8:51 AM, Laura Fawc et t <laura.fawcett @eaglec ounty .us > wrot e: Hi Ric k, I took a quic k look at t he c onc eptual s ept ic des ign and have a few c omments: 1. The des ign s hould inc lude y our c alculat ions and jus tific at ion for a design flow. This would determine the minimum t ank siz e and als o be us ed in conjunc tion with the soil analy s is for determining the leac h field area. 2. Onc e the soil work is complet ed locate the perc tes t holes and the 8 foot s oil profile hole on the plans . Als o, will there be a well? If s o please loc ate the well. 3. The two piece septic tank could leak . A t ank that is formed in one piece is preferable. Flx x mak es watertight concrete tank s . 4. Chamber unit s are preferable over gravel and perforated pipe in the leach field bec aus e you don't have to bring in c lean gravel and chamber units get a 50 perc ent reduc tion in the area required for the leach field. 5. The leach field trenc hes s hould follow the slope c ontours so that one end of t he trench does n't get too deep. The leac h field s hould be inst alled between 2-3 feet in dept h as long as there are no c onfining c onditions suc h as ground water or bedrock . 6. Spec ify the ty pe of PVC pipe us ed in the design. 7. All setback s mus t be met. Perhaps Ray will have more c omment s . Feel free t o c ont act us wit h further quest ions or for review of anot her concept ual des ign. Sinc erely, Laura On Tue, Sep 25, 2012 at 10:02 P M, Rick Mey er <ric k@dsiengineering.net> wrote: 10/30/12Eagle County G overnment Mail - Re: Gypsum power plant sept ic design 2/2https://mail.google.com/mail/ca/?ui=2&ik=1141485fc1&view=pt&as_from =Laura.Fawcet t%40eaglecoun… Laura or Ray , Laura, I s poke with you on the phone a c ouple of day s ago, and y ou ans wered a ton of quest ions I had regarding sept ic design in Eagle County. Thank y ou for taking t hat time with me. You mentioned that we could s ubmit a conceptual layout of t he propos ed des ign to s ee if we are on t he right t rac k. Pleas e find at tac hed our c onc eptual septic design. W e are s till waiting on perc t est res ults, so the abs orption trench was des igned as a range of dimens ions . If either of you get a few minutes t o look this over, I would really apprec iate s ome feedbac k as to whet her I am mis sing s omet hing big. Event ually there will be more det ail t o ac company t he des ign. -- Thank s , Rick Meyer, PE DSI Engineering (801) 380-2113 -- Laura Fawc ett, RE HS Environmental Health Spec ialis t III Eagle County Environment al Healt h Phone: 970-328-8756 Fax : 970-328-8788 Laura.Fawc ett@eaglec ounty .us -- Thank s , Rick Meyer, PE DSI Engineering (801) 380-2113 -- Laura Fawc ett , REHS Environmental Health S pec ialist III Eagle County Environment al Health Phone: 970-328-8756 Fax: 970-328-8788 Laura.Fawc ett @eaglec ounty .us INFILTRATOR SYSTEMS INC. QUICK4 STANDARD CHAMBER 12" . 7m 744. QUICK4 STANDARD MULTIPORT END CAP I~ 16 �I CHAMBER DETAIL INFILTRATOR SYSTEMS INC. QUICK4 EQUALIZER 36 INLET OPTIONS 4" FRONT VIEW e g„ SIDE VIEW 91, 10" 6" CHAMBER INLET OPTIONS --NTS-- NOTES TO CONTRACTOR: 1) CONTRACTOR TO FIELD VERIFY ALL EXISTING CURB & GUTTER, STORM DRAIN, CHANNEL CROSSINGS, & SEWER ELEVATIONS OR INVERTS PRIOR TO CONSTRUCTION AND NOTIFY ENGINEER WHEN ELEVATIONS OR INVERTS DO NOT MATCH PLANS. 2) THE LOCATIONS OF EXISTING UNDERGROUND UTILITIES ARE SHOWN IN APPROXIMATE LOCATIONS. THE CONTRACTOR SHALL DETERMINE THE EXACT LOCATION OF ALL EXISTING UTILITIES BEFORE COMMENCING WORK. HE AGREES TO BE FULLY RESPONSIBLE FOR ANY AND ALL DAMAGES WHICH MIGHT BE OCCASIONED BY HIS FAILURE TO EXACTLY LOCATE AND PRESERVE ANY AND ALL UNDERGROUND UTILITIES. MOUND FOR PROPER DRAINAGE QUICK4 CHAMBER INSPECTION PORT TYPICAL INSTALLATION DETAIL (Not to Scale) Option B: INSTALLATION WITH VALVE BOX SMALL VALVE COVER BOX OR IRRIGATION VALVE BOX AT GRADE AMERICAN GYPSUM 0 ■■ p;ElC SEPTIC DESIGN AREA. SEE BEL \ \\ \ \\ \ ga ATTACH CAP OR THREADED X X - CLEANOUT ASSEMBLY X ® — COMPACT SOIL BASE TO SUPPORT BOX 4" PVC PIPE CUT TO FITAD — USE HOLE SAW REST 4" PVC PIPE ON TOP OF TO CUT OUT INSPECTION PORT SEAT. PRE -MARKED CIRCLE SECURE IN PLACE WITH A — DRYWALL SCREW �N INSPECTION PORT DETAIL --NTS-- INFILTRATOR SYSTEMS INC. QUICK4 STANDARD TRENCH DETAIL (NOT TO SCALE) 34" 36" CHAMBER TRENCH DETAIL --NTS-- NOTES: 1. ALL PVC PIPE USED IN SEPTIC SYSTEM TO BE SDR-35. 2. CHAMBERS ARE TO BE PLACED IN A FLAT TRENCH END TO END. TRENCH TO BE 2 - 3 FT DEEP. ESTABLISH VEGETATIVE COVER 8' MAX BURIAL DEPTH 12" MIN., H-10 LOAD AREAS 6" MIN., NON -TRAFFIC AREAS 12" 5 SITE MAP i II" I " �I, III J Ff INSTALL*% PECTION PORT PER Q,,,ETAIL PERC TEST LOCATION 40 6 SEPTIC DE8`IGN 1 10 INSTALL INSPECTION PORT PER DETAIL • Ill lll,'III1011 !III ili 111 llll llhlll lll�� llhlll lll! IIhIII IIIII'a I ® PERC TEST LOCATION �` ` BORE HOLE ; LOCATION ♦` ♦♦ �40 00 �♦ INSTALL INSPECTION PORT PER DETAIL P RO POSE D'O6E"Ui 4" PVC BUILDING DISCHARGE LINE AT 2% MIN SLOPE FLXX 1000-GAL `., ♦ ` 2-COMPARTMENT SEPTIC ♦ �ANK, OR APPROVED EQUAL oft INSTALL INSPECTION PORT PER DETAIL ` PERC TEST LOCATION ♦I NOTES 1. SLOPE FINISH GROUND SURFACE AWAY FROM I♦ ABSORPTION AREA AT 2% MIN SLOPE. 63 INFILTRATOR QUICK4 STANDARD CHAMBERS, OR APPROVED EQUAL W o U o W co d DATE: 10/31/2012 PROJECT #12159920 REVISIONS: / SHEET NAME: SEPTIC DESIGN SHEET: C-001 C:IUSERSIRICKIDROPBOXIDSIIPROJECTSIGYPSUMISEPTIC DESIGMSEPTIC DESIGN Ray Merry <ray.merry@eaglecounty.us> EAGLE WU i Re: Gypsum- EVCE Septic system Kendric Wait <kendric@evergreencleanenergy.com> Thu, Nov29, 2012 at 4:08 PM To: Ray Merry <ray. merry @eaglecounty. us> Cc: Rick Meyer <rick@dsiengineering.net>, sherring@regiondesignllc.com Thanks, Ray. So is that the correct (not outdated) form to send? Do you have a name and phone number at EPA that I would call? On 11/29/12 4:01 PM, "Ray Merry" <ray. merry@eaglecounty. us> wrote: >1 was able to find out how this would work. >Should you choose to connect the floor drains to the septic system, you >would subject yourself to the UIC program regardless of what activities >go on in the room that contains the floor drain. You would fill out the >questionnaire and submit it directly to the EPA for their review and >potential permitting as a UIC Class V Injection well. >If the floor drain is not sent to the septic system and the septic system >receives only sanitary waste from the employee bathroom, you would not be >required to fill out the questionnaire and send to the EPA for review. >As I understand it, permitting with the EPA requires groundwater >monitoring. >On Wed, Nov28, 2012 at 5:51 PM, Kendric Wait ><kendric@evergreencleanenergy.com> wrote: > Ray, >1 made some comments on the questionnaire that should help when you talk >with the EPA person. I also confirmed that there is an oil/water >separator between the floor drains and it's discharge point, be it septic >or other. >kw >On 11/28/12 5:23 PM, "Ray Merry" <ray.merry @eaglecounty.us> wrote: >>Here is the questionnaire I referred to in the previous email. Please >>note it is a 2008 document any may be outdated by now. >>The nature of my question for Mark Gunther was whether the Uniform >>Plumbing Code code specified to where floor drains must be plumbed. His >>response was that they can't go to a storm drain which I know is not >>being considered anyway. This leaves the possibility of day -lighting, if >>appropriate. >>Thanks. >>On Wed, Nov28, 2012 at 5:05 PM, Kendric Wait >><kendric@evergreencleanenergy.com> wrote: >>Thanks, Ray. This is a design change that we're evaluating, not anything >>that is required. So, Mark should need resolution on it, we haven't even >>discussed it with him since we're just looking at some options right now. >>If you could fwd the questionnaire, that would be helpful to read. Or a >>link to it would be fine too. >>kw >>On 11/28/12 5:03 PM, "Ray Merry" <ray.merry@eaglecounty.us> wrote: >>>I left a voice message with the Region 8 EPA contact, Valois Shea to >>>obtain guidance and in the meantime, have found a questionnaire they use >>>for making a determination so you can get a feel for the type of >>>information that drives their decision -making. >>>Mark Gunther also returned my call yesterday and I've not had an >>>opportunity to speak with him in case we need resolution to this matter >>>prior to the EPA's direction. >>>Thanks. >>>On Tue, Nov 27, 2012 at 3:57 PM, Kendric Wait >>><kendric@evergreencleanenergy.com> wrote: >>>Ray, >>>Sure, that would be great. We have other options if it creates a >>>complex >>>issue, but it would be nice to know what the rules are. I'm sure the >>>cleaner would like to use a little soap or something similar that you >>>would see in any normal household operation, but it we have to stick to >>>just water, that would be fine. I'll take a look at the rooms to see >>>their activity and send to you. >>>kw >>>On 11/27/12 3:54 PM, "Ray Merry" <ray. merry@eaglecounty. us> wrote: »»The EPA cares about what goes on in the room that contains the floor »»drains (as I understand it) in order to determine whether the facility »»falls under the UIC program. »»Rick should include something in his report for the OWTS that accounts »»for the maximum flows from the one day the cleaning occurs, mention the »»oil/water separator and how that gets maintained; and state that no »»detergents or solvents are used in the cleaning process, then decide »»whether or not this changes the design at all. »»Shall I call the EPA at this point? »»On Tue, Nov 27, 2012 at 3:47 PM, Kendric Wait »»<kendric@evergreencleanenergy.com> wrote: »»Thanks, Ray. »»A little information on the floor drains. Their primary purpose is to »»allow wash down of the floors once per year. In the normal course of »»events, nothing would be discharge to those drains and they will »»contain »»an oil/water separator. Concrete is the finish floor surface, so we »»view »»it as nothing different than if you were to have a floor drain in your »»laundry room. »»Let me know if that helps. »» kw »»On 11/27/12 3:39 PM, "Ray Merry" <ray. merry@eaglecounty. us> wrote: »»>Rick & Kendric, »»>I failed to copy you two on this message and I'd rather »»>over -communicate »»>than under -communicate to get these matters addressed as quickly as »»>possible. »»>Please take a look at the thread and feel free to call me. »»>---------- Forwarded message ---------- »»>From: Ray Merry <ray.merry@eaglecounty.us> »»>Date: Tue, Nov 27, 2012 at 3:28 PM »»>Subject: Re: Gypsum- EVCE Septic system »»>To: sherring@regiondesignllc.com »»>Cc: #environment <environment@eaglecounty.us> »»>Shawn, »»>I take it that you were able to get the building permit from the Town »»>of »»>Gypsum as we had hoped. That's great. »»>Regarding the floor drains, they were not shown on the plans nor do I »»>have an idea about what sort of things that might be discharged to »»>them. »»>In other words, where are the floor drains located and what activities »»>are going on within the building that might cause a discharge to the »»>flor »»>drains? are they bathroom floor drains or shop floor drains or drains »»>within a shop, etc.? »»>We typically don't see floor drains plumbed to a septic system at all, »»>at »»>least not without some sort of BMP like a sand trap or oil/water »»>separator and often times, the floor drains daylight to a catchment or »»>drainage outside a building as to avoid having any contaminants enter »»>the »»>septic system which is designed to handle exclusively toilet and sink »»>wastes. The issue isn't so much the cleanliness of the water or minor »»>flows from dripping fixtures. »»>Another matter is that under certain circumstances which largely »»>depends »»>on what might go down the floor drain, the facility may be subject to »»>registration or permitting under the EPA's Underground Injection »»>Control »»>program. I've got a contact with the EPA that I can call or put you in »»>touch with to see what might be the best option for the facility at »»>this »»>point. »»>Please call me to discuss when you get a chance. »»>On Tue, Nov27, 2012 at 2:37 PM, <sherring@regiondesignllc.com> »»>wrote: »»>Hi Ray, »»>Would it be possible to run a couple of the floor drains to the septic »»>field? »»>Floor drains typically just involve minor flows, drips, leaks, etc »»>that »»>are generally minimized by good maintenance practices, but if they do »»>occur there has to be somewhere for them to go. The boiler would would »»>drain off very clean water, cleaner than anything else going to the »»>septic. »»>Would this work? »»>Thank you, »»>Shawn Herring »»>Region Engineering & Surveying »»>ph. (801)376-2245 <tel: %28801 %29376-2245> <tel: %28801 %29376-2245> »»><tel: %28801 %29376-2245> »»><tel: %28801 %29376-2245> »»><tel: %28801 %29376-2245> »»> 1776 North State St. #110 »»>Orem, Utah 84057 »»>www.regiondesignllc.com <http://www.regiondesignllc.com> >>>>><http://www.regiondesignllc.com> >>>>><http://www.regiondesignllc.com> »»><http://www.regiondesignllc.com> »»><http://www.regiondesignllc.com> »»>This e-mail and any attachments transmitted with it are created by and »»>are the property of Region Engineering & Surveying,. and may contain »»>information that is confidential or otherwise protected from »»>disclosure. »»>The information it contains is intended solely for the use of the one »»>to »»>whom it is addressed, and any other recipient is directed to »»>immediately »»>destroy all copies.lf this electronic transmittal contains »»>Professional »»>Design Information, Recommendations, Maps, or GIS Database, those are »»>"draft" documents unless explicitly stated otherwise in the email »»>text. »»>-------- Original Message ------ »»>Subject: Re: Gypsum- EVCE Septic system »»>From: Ray Merry <ray. merry@eaglecounty. us> »»>Date: Mon, November 19, 2012 2:51 pm »»>To: Kendric Wait <kendric@evergreencleanenergy.com> »»>Cc: Jerry Law <Jerry@townofgypsum.com>, Jim Hancock »»><Jim@townofgypsum.com>, "sherring@regiondesignllc.com" »»><sherring@regiondesignllc.com>, Mark Gunther »»><mgunther@townofgypsum.com>, "#environment" »»><environment@eaglecounty.us>, Rick Meyer <rick@dsiengineering.net> »»>That sounds good, Kendric. »»>Who would be my best contact with the EVCE to discuss the breadth of »»>environmental impacts and their mitigation plans? »»>I would like to be better prepared to address calls from the public »»>concerning the potential for air and water quality impacts from the »»>operation as a whole. »»>Thanks. »»>On Mon, Nov 19, 2012 at 2:25 PM, Kendric Wait »»><kendric@evergreencleanenergy.com> wrote: »»>Thanks, Ray. »»> Eagle Valley will assign the contractor next spring or summer as we »»> understand the licenses run with the calendar year. »»> Thanks, »»> Kendric Wait »»> On 11/19/12 2:22 PM, "Ray Merry" <ray. merry@eaglecounty. us> wrote: »»> >Thanks, Jerry. »»> >As far as we're concerned, they can get their building permit as our »»>OWTS »»> >permit will remain "provisional" until they assign a contractor that »»>is »»> >properly licensed to install septic systems. »»> >Rick, please note the number of employees can go up to 6. 1 don't »»> >believe this makes a difference in the system sizing criteria that »»>you've »»> >proposed but it may make sense to have the larger number of chambers »»>used »»> >in the soil treatment unit instead of 27 being the minimum - I think »»>it »»> >was 63? »»> >On Mon, Nov 19, 2012 at 1:55 PM, Jerry Law <Jerry@townofgypsum.com> »»>wrote: »»> >Ray, »»> >The Town of Gypsum has decided to allow the Eagle Valley »»> >Clean Energy site to use an ISTS septic system because of their low »»>usage »»> >(restroom for two to six employees on shift), and their location »»>being »»>a »»> >little »»> >over 500' from the closest sewer main south of the railroad tracks. »»> >The two recommendations that I have from »»> >the latest septic layout design and grading plan (that I've seen) »»>are: »»> >1) move the septic tank and leach field as far to the south and »»>west »»>as »»> >possible to allow a crane or maintenance vehicles to drive around »»>the »»> >building. The leach field needs to be "fenced" or blocked from »»> >vehicles crushing the chambers, as often happens in industrial »»>sites. »»> >Placing the southern row of chambers at the toe of the berm will »»>assure »»> >you »»> >don't exceed the soil cover requirements as shown on the initial »»>design. »»> >2) regrade the area south and west of the parking lot pavement to »»>drain »»> >to the west; then north. The last revision I saw created a pond »»>south »»>of »»> >the pavement ---which means the leach field will act as a dry -well. »»> >Thank you for your review, »»> >Jerry »»> > Law »»> >524-1744 »»> >Raymond P. Merry, REHSDirector of Environmental Health »»> >PO Box 179 »»> >Eagle, CO 81631 »»> >970.328.8757 <tel:970.328.8757> <tel:970.328.8757 »»><tel:970.328.8757>> <tel:970.328.8757 <tel:970.328.8757> »»><tel:970.328.8757 <tel:970.328.8757>>> <tel:970.328.8757 »»><tel:970.328.8757> <tel:970.328.8757 <tel:970.328.8757>> »»><tel:970.328.8757 <tel:970.328.8757> <tel:970.328.8757 »»> <tel : 970.328.8757»» »»><tel:970.328.8757 <tel:970.328.8757> <tel:970.328.8757 »»><tel:970.328.8757>> <tel:970.328.8757 <tel:970.328.8757> »»><tel:970.328.8757>> <tel:970.328.8757 <tel:970.328.8757> »»><tel:970.328.8757 <tel:970.328.8757»» »»> >ray.merry@eaglecounty.us »»> >P Thanks for not printing electronic media »»>Raymond P. Merry, REHS »»>Director of Environmental Health »»>PO Box 179 »»>Eagle, CO 81631 »»>970.328.8757 <tel:970.328.8757> <tel:970.328.8757 <tel:970.328.8757>> »»><tel:970.328.8757 <tel:970.328.8757> <tel:970.328.8757>> »»><tel:970.328.8757 <tel:970.328.8757> <tel:970.328.8757 »» > <tel : 970. 328.8757>>> »»> ray. merry@eaglecounty.us »»>P Thanks for not printing electronic media »»>Raymond P. Merry, REHSDirector of Environmental Health »»>PO Box 179 »»>Eagle, CO 81631 »»>970.328.8757 <tel:970.328.8757> <tel:970.328.8757 <tel:970.328.8757>> »»><tel:970.328.8757 <tel:970.328.8757> <tel:970.328.8757>> »»> ray. merry@eaglecounty.us »»>P Thanks for not printing electronic media »»>Raymond P. Merry, REHSDirector of Environmental Health »»>PO Box 179 »»>Eagle, CO 81631 »»>970.328.8757 <tel:970.328.8757> »»> ray. merry@eaglecounty.us »»>P Thanks for not printing electronic media »»Raymond P. Merry, REHSDirector of Environmental Health »»PO Box 179 »»Eagle, CO 81631 »» 970.328.8757 »» ray. merry@eaglecounty. us »»P Thanks for not printing electronic media >>>Raymond P. Merry, REHSDirector of Environmental Health >>>PO Box 179 >>>Eagle, CO 81631 >>>970.328.8757 >>> ray. merry@eaglecounty. us >>>P Thanks for not printing electronic media >>Raymond P. Merry, REHSDirector of Environmental Health »PO Box 179 >>Eagle, CO 81631 >>970. 328.8757 >> ray. merry@eaglecounty. us >>P Thanks for not printing electronic media >Raymond P. Merry, REHSDirector of Environmental Health >PO Box 179 >Eagle, CO 81631 > 970.328.8757 > ray. merry@eaglecounty. us >P Thanks for not printing electronic media SEPTIC DESIGN CALCULATIONS Completed for EAGLE VALLEY CLEAN ENERGY PROPOSED INDUSTRIAL IMPROVEMENTS LOCATED IN Gypsum, Colorado Prepared by: Rick Meyer Region Engineering & Surveying 1776 North State Street, Ste 110 Orem, Utah 84057 (801) 380-2113 October 2012 CONTENTS Introduction ..................................................................................................................... 1 Define Design Criteria .................................................................................................... 1 Determine Design Flows................................................................................................. 1 Select Septic Tank........................................................................................................... 2 Design Absorption Area ................................................................................................. 2 Report Conclusions ......................................................................................................... 2 APPENDIX ..................................................................................................................... 3 Eagle Valley Clean Energy 1 Introduction The Eagle Valley Clean Energy proposed industrial improvements include construction of a new electrical power plant located north of highway 6 and the railroad tracks, and directly east of American Gypsum (see below). The purpose of this report is to briefly discuss the requirements for septic design in the state of Colorado and Eagle county and how these requirements have been met for this site. Following is a list of tasks performed for purposes of this report: · Define Design Criteria · Determine Design Flows · Select Septic Tank · Design Absorption Area · Report Conclusions Define Design Criteria The Eagle County Board of Health has adopted regulations for the disposal of wastes. These regulations are found in Chapter IV of the Eagle County Land Use Regulations. Determine Design Flows The “Table of Quantities and BOD Strength of Sewage” on page 25 of Chapter IV states that the average daily quantity of sewage discharged from factories and plants (excluding industrial wastes) is 35 gal/person/day (see appendix). Section 4.04.01.3 states that the “maximum flow shall be considered as 150 percent of average flow and shall be the basis for design purposes”. The proposed plant will have a VICINITY MAP SITE Eagle Valley Clean Energy 2 maximum of four people on site during a 24-hour period. Applying these values yields a design discharge of 210 gallons per day. Select Septic Tank Section 4.07.01.1 of Chapter IV states that “a septic tank shall be constructed to permit detention of incoming sewage for a minimum of thirty (30) hours”. The 30-hour discharge is 263 gallons. Section 4.07.01.2.a states that the “effective liquid capacity shall be no less than 750 gallons”. The 1000-gal two compartment FLXX precast concrete septic tank (or approved equal) has been chosen for the site (see appendix). Design Absorption Area A soil investigation was performed per standards set forth in Chapter IV by Hepworth-Pawlak Geotechnical, Inc (see appendix). The report recommended using the Long Term Acceptance Rate (LTAR) of the soil for design. The LTAR specified in the report is 0.40 gallons per square foot per day. A design flow of 210 gallons per day will require an absorption area of 525 square feet (210 gal/day / 0.40 gal/sf/day = 525 square feet). The Infiltrator Quick4 Standard Chamber (or approved equal) was chosen to distribute waste through the absorption area (see appendix). See appendix for calculations of chamber counts by row in the absorption area. The chosen chambers provide 8.33 square feet per chamber. The minimum 63 chambers (525 sq ft / 8.33 sq ft/chamber = 63 chambers). Report Conclusions Based on the requirements set forth in this report for septic tank and absorption area design, the design as shown on the construction drawings appears to be suitable and adequate for the circumstances, and feasible to construct. See septic design drawings in appendix. Eagle Valley Clean Energy APPENDIX Table of Quantities and BOD Strength of Sewage FLXX 1000 Gal Two Compartment Septic Tank Geotechnical Report Infiltrator Quick4 Standard Chamber Absorption Area Calculations Septic Design Drawings 25 TABLE OF QUANTITIES AND BOD STRENGTH OF SEWAGE TYPE OF ESTABLISHMENT Residential Hotels & Motels without private baths Hotels & Motels with private baths Multiple family dwellings or apartments Rooming houses Single family dwellings Commercial & Miscellaneous Airline Catering Airports (not incl. food) Airports Bus service areas (not incl. food) Country clubs (not incl. food) Day workers at offices Drive-in theaters (not incl. food) Factories & plants (excl. of industrial wastes) Laundries, self-service Food Service Establishments (toilet and kitchen wastes) Food Service Establishments (kitchen wastes) Food Service Establishments (with paper service) Additional for bars & cocktail lounges Movie Theaters, churches (not incl. food) Stores Work or construction camps (semi- permanent) with flush toilets Work or construction camps (semi- permanent) without flush toilets Travel trailer parks with individual water & sewage hook-up Travel trailer parks without individual water & sewage hook-ups GALLONS/PERSON/DAY LBS. BOD PER (AVERAGE) PERSON/DAY (Unless Otherwise (Unless Otherwise Stated) Stated) 50 .15 60 .15 75 .20 50 .15 75 .20 3 gal/meal served .03 lbs/meal served 5 gal/passenger .02 lbs/passenger 10 gal/employee/day .06 lbs/employee/day 5 .02 30 .02 15 .06 10 gal/space/day .06 lbs/space/day 35 .08 400 gal/washer/day 2.00 lbs/washer/day 10 gal/patron/day .06 lbs/meal served 3 gal/meal served .03 lbs/meal served 1.5 gal/meal served .01 lbs/meal served 2 .02 5 gal/seat/day .03 lbs/seat/day 400 gal/public 2.00 lbs/public toilet/day toilet/day 50 .17 35 .02 100/gal/unit/day .50 lbs/unit/day 50 gal/unit/day .17 lbs/unit/day Note: N.T.S. -7- Front Range Precast Concrete, Inc. 5439 N. Foothills Highway, Boulder, Colorado 80302 Phone (303) 442-3207 • (800) 783-3207 • Fax (303) 442-3209 www.flxx.com Watertight 3.5" A B55" 8'-6" Inlet Outlet 5'-6" PLAN SECTION 4" Concrete or heavy duty polyethylene riser system 4" Push SealGasket typical 6" 5'-10" 52" 12" 1000 Gal. Two CompartmentSeptic Tank Part # Capacities Approximate Weights A B Tank Lid Baffle Wall Total PCA-000-252 640 430 6,995 lbs 2,550 lbs 910 lbs 10,455 lbs (gallons) • Monolithic tank meets ASTM-C-1227 Spec. for water and wastewater structures. • Butyl rubber sealant meets Fed. Spec. SS-S-210A. (Provided with tank) • All plumbing shown in diagram is 4" SDR 35. (Provided with tank) The Quick4®Standard Chamber The MultiPort End Cap Offers These Unique Benefits: •Patent-pending tear-out seals on inlet ports provide a tight fit to the pipe •Eight molded-in inlets/outlets allow for maximum piping flexibility •Multiple ports eliminate pipe fittings and make looping ends easy •Patent-pending MultiPort end cap fits on either end of the Quick4 Standard Chamber Infiltrator is the number-one septic leachfield chamber system in the onsite industry, with over 42 million units in-ground in all 50 states and 24 countries. Approved in _______________________ The Quick4 Standard Chamber Offers You These Unique Benefits: •Advanced contouring connections swivel 10-degrees, right or left •Latching mechanism allows for quick installation •Compact nesting provides more trench length in an equivalent stack height •Four-foot chambers are easy to handle and install •The Quick4 Standard Chamber supports wheel loads of 16,000 lbs/ axle with only 12" of cover •Certified by the International Association of Plumbing and Mechanical Officials (IAPMO) The evolutionary patent-pending Quick4®Standard Chamber fits in a 36" wide trench and is ideal for curved or straight systems. It features the patent-pending Contour Swivel Connection™which permits 10-degree turns, right or left. The MultiPort™end cap allows multiple piping options and eliminates pipe fittings. The chamber ’s four-foot length provides optimal installation flexibility. For technical assistance, installation instructions or customer service, call Infiltrator Systems at 1-800-221-4436. U.S. Patents: 4,759,661; 5,017,041; 5,156,488; 5,336,017; 5,401,116; 5,401,459; 5,511,903; 5,716,163; 5,588,778; 5,839,844 Canadian Patents: 1,329,959; 2,004,564 Other patents pending. Infiltrator,Equalizer,Quick4 and SideWinder are registered trademarks of Infiltrator Systems Inc. Infiltrator is a registered trademark in France. Infiltrator Systems Inc. is a registered trademark in Mexico. ChamberSpacer, Contour, Contour Swivel Connection, MicroLeaching, MultiPort, PolyTuff, PosiLock, QuickCut, QuickPlay, SnapLock and StraightLock are trademarks of Infiltrator Systems Inc. © 2006 Infiltrator Systems Inc. Printed in U.S.A. Q250808WA-1 INFILTRATOR SYSTEMS, INC. STANDARD LIMITED WARRANTY (a) The structural integrity of each chamber, end cap and other accessory manufactured by Infiltrator ( “Units”), when installed and operated in a leachfield of an onsite septic system in accordance with Infiltrator's instructions, is warranted to the original purchaser (“Holder”) against defective materials and workmanship for one year from the date that the septic permit is issued for the septic system containing the Units; provided, however, that if a septic permit is not required by applicable law, the warranty period will begin upon the date that installation of the septic system commences. To exercise its warranty rights, Holder must notify Infiltrator in writing at its Corporate Headquarters in Old Saybrook, Connecticut within fifteen (15) days of the alleged defect. Infiltrator will supply replacement Units for Units determined by Infiltrator to be covered by this Limited Warranty. Infiltrator’s liability specifically excludes the cost of removal and/or installation of the Units. (b)THE LIMITED WARRANTY AND REMEDIES IN SUBPARAGRAPH (a) ARE EXCLUSIVE. THERE ARE NO OTHER WARRANTIES WITH RESPECT TO THE UNITS, INCLUDING NO IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE (c) This Limited Warranty shall be void if any part of the chamber system is manufactured by anyone other than Infiltrator.The Limited Warranty does not extend to incidental, consequential, special or indirect damages. Infiltrator shall not be liable for penalties or liquidated damages, including loss of production and profits, labor and materials, overhead costs, or other losses or expenses incurred by the Holder or any third party. Specifically excluded from Limited Warranty coverage are damage to the Units due to ordinary wear and tear, alteration, accident, misuse, abuse or neglect of the Units; the Units being subjected to vehicle traffic or other conditions which are not permitted by the installation instructions; failure to maintain the minimum ground covers set forth in the installation instructions; the placement of improper materials into the system containing the Units; failure of the Units or the septic system due to improper siting or improper sizing, excessive water usage, improper grease disposal, or improper operation; or any other event not caused by Infiltrator. This Limited Warranty shall be void if the Holder fails to comply with all of the terms set forth in this Limited Warranty. Further, in no event shall Infiltrator be responsible for any loss or damage to the Holder,the Units, or any third party resulting from installation or shipment, or from any product liability claims of Holder or any third party. For this Limited Warranty to apply, the Units must be installed in accordance with all site conditions required by state and local codes; all other applicable laws; and Infiltrator’s installation instructions. (d) No representative of Infiltrator has the authority to change or extend this Limited Warranty. No warranty applies to any party other than the original Holder. ******* The above represents the Standard Limited Warranty offered by Infiltrator. A limited number of states and counties have different warranty requirements. Any purchaser of Units should contact Infiltrator's Corporate Headquarters in Old Saybrook, Connecticut, prior to such purchase, to obtain a copy of the applicable warranty,and should carefully read that warranty prior to the purchase of Units. The Quick4 Standard Chamber The Quick4®Standard Chamber Quick4 Standard Chamber Specifications Size (W x L x H) ........34" x 53" x 12" (86 cm x 135 cm x 31 cm) Effective Length ......................................................48" (122 cm) Louver Height ..............................8" (20 cm) Invert Height ................................8" (20 cm) 6 Business Park Road •P.O. Box 768 Old Saybrook, CT 06475 860-577-7000 •FAX 860-577-7001 1-800-221-4436 www.infiltratorsystems.com MultiPort End Cap 48" (EFFECTIVE LENGTH) 1 34"4 12" 34" 8" 16" 3 FRONT VIEW SIDE VIEW TOP VIEW Row ## Chambers Discharge, Q (unadjusted)140 gpd 1 23 Discharge, Q (adjusted)210 gpd 2 23 Perc Rate, T 30 min/in 3 22 Absorption Area, A 1260 sq ft 4 22 Row Width 2.83 ft 5 22 Chamber Length (per)4 ft 6 # Chambers Required 112 chambers 7 Num Rows 5 8 Row Length 92 ft 9 Absorption Area Design