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Home My WebLink About3.0 Correspondence & ConditionsGarfield County Community Development Department 108 8th Street, Suite 401 Glenwood Springs, CO 81601 April25, 2016 HiGlenn, ln response to the Director's Decision letter and Staff Report, we have the following comments regarding numbers 3, 4 and 5 under "Prior to lssuance of the Land Use Change Permit:" 3. Tab 13 of our Application includes a report from Sopris Engineering dated 2010 which addresses the upgrades to the OWTS that were completed to accommodate the additional volumes associated with completion of the AÐU in the barn. The reverse osmosis water treatment we are proposing will use an under-sink system for drinking and cooking water only According to Tom Platzer with Aqua Tec this system will produce 10 gallons/day. We have consulted with Sopris Engineeríng and they confirm that our current system is adequate. 4. Please see attached letter confirming the driveway meets Section 7-107 Roadway Standards per request 5. We have been in touch with Ron Biggs, Fire Marshall and have requested that they come to our property to observe the hydrant. The hydrant is accessible with a hose or water could be taken from the pond^ Also, we have had the Fire Marshallto our property to do an on-site fire mitigation overview in the past. ln addition, we have had fire trucks to our house twice due to false alarms from our security system. We are aware it is our responsibility to and will commit to: o Continuing to maintain and operate the RO system to the ADU as we do for our house r Comply with all conditions and limitations on Well Permit No. 300164 r Gontinue working with Garfield County Building and Planning Department to meet Building Code Requirements o Continue to comply with lighting standards r Trash will be stored in secure portion of the barn until removal and the limited fencing we do have will continue to be wildlife friendly and compatible with the CPW guidelines Thank you for review of our Application and support with the process. QrluBob and Hillery oddo engmeermg Apnl2l,2016 Glenn Hartmann Garfield County, Colorado RE: Roadway Standards of Section 7-107, Oddo Barn ADU,2425 CR 137, Garfield County, Colorado Glenn: In accordance with your request, the following is a confirmation of meeting the standa¡ds for our access driveway for the Oddo Barn ADU. I confirm that the existing asphaltic paved access driveway meets or exceeds the requirements of the Garfield County Roadway Standards of Section 7-107 "Table 7-107 Roadway Standards" for our proposed ADU. Let me know if you need any further information. Thank you,rirìI' \þ bert A. Bob20l6/Oddo Canyon Barn ADU Driveway 713 Cooper Ave I Suite 200 o Glenwood Springs, CO 81601 (970)945-1006 . Fax (970) 945-2966 o E-Mail bob@oddogws.com t491193884No Data Collected29L772t6100s26139341.23492046t30032No Data CollectedNo Data CollectedNo Data CollectedNo Data CollectedNo Data CollectedNo Data CollectedNo Data Collected802Beginning of RoadBeginning of RoadBeginning of RoadBeginning of RoadBeginning of RoadBeginning of Road WestEast entranceBeginning of RoadBeginning of RoadBeginning of RoadBridgeat Donegan lntersectionBeginning of RoadBeginning of RoadBeginning of RoadBeginning of RoadBeginning of Road119 KINDALL RDI2O LOOKOUT MOUNTAIN RDT27 COULTER CREEK RDt22 UPPER CATTLE CREEK RDI23 MARION CEMETERY RDT24 MARION MINE RD125 DRY PARK RDI25 East End DRY PARKL26 BLACK DIAMOND MINE RDT27 THREE MILE RDL29 NO NAME LN130 DONEGAN RDT32 MITCHELL CREEK RD133 MEL RAY RDT34 S CANYON CREEK RDT37 CANON CREEK RD138 SLAUGHTERHOUSE RDT4O COFFEE POT RDT L HEART LAKE RDL42 BISON LAKE RDT43 DEEP LAKE CAMPGROUNDL44 DEEP LAKE EAST RD745 TRAPPERS LAKE CG RDT46 INDIAN CAMP RDT48 PONDEROSA DR( A ri,22,2016 Bob Oddo Ocldo Engineering, Inc. 302 Eighth Street, Suite 325 P.O. Drawer i60 Glenwood Springs, CO 81602 RE: Ocldo Residence -Existing OWTS System Capacity, 2425 Cowty Road 737,Gaffreld County Colorado SE Job No. 22108.01 Ðear Bob: Prusuant to your lequest, this letter provides confinnation that the existing onsite wastewater Treatment system (OWTS) has adequate capacity to serve the existing 4-bedloom residence ancl the ADU including any additional r,vastewater volumes associated with the use of a teverse osmosis water treatment system. The OWTS was originally clesigned and constructecl to serve a 4-bedroom residence and a I bedroorn ADU unit associated with the barn stlucture. The ADU will include a single fixture reverse osrnosis (RO) component. Sopris Engineering performed a previons evaluation, inspection and capacity analysis of the systetn in 2010 that was documented in a letter, to the ownel', dated June 2,20IA. The OTVTS system was permitted and installecl in2002, in compliance with the regulations in effect at the time of permit. Tlre OWTS has a rninimum absorption/tleatment field sizecl to provide capacity basecl on the total clesign waste flow of 1125 gpd to treat septic tank effluent from a 4-bedrnom residence plus a l- bedl'oom ADU. The desigrr flow of 1125 was calculated basecl on 5 bech'ooms at 150 gpd/bedroom times a 150% peaking factor. The actual daily flow is assttmed to be less than 600 gpcl. The absorption field was constructed with 3 palallel trenches utilizing EQ-36 Infiltrator gravelless chambers. The existing absorption trenches rvere inspected in 2010 ancl cletennined to be functioning as designed. The infiltrative sutface was observed to be moist with evidence of active aerobic biological activity. No eviclence of limited absorption capacity, saturation or anaerobic bio mat bacteria was observed, Tfrelefore the capacity of the systen appeared to be in gootl condition to ñrnction as designecl and installed. The required absorption field size rvas determined based on the previous clesign calculations, utilizing the onsite soil percolation rate (6mpi) and the allowable 50% reduction in fielcl size atea for use of gravelless charnber units in a trench configuration. The minimum absorptive/treatment atea for a gravity chamber trench systern lvas calculated to be276 S.F. that requirecl 18 EQ-36Infilhator chamber units, (equivalent 31.93 S.F. absorptive trench area pel' unit). The installed chamber trench absorption field has a total absorptive/treatrnent area of 479 S,F. basecl on the installation of a total of 30 EQ-36 Infilltator chamber units. Therefore the existing field has 203 S.F. of adclitional absorptive area that provides for approximately 74o/o aclditional flow capacity of 830 gpd over the 1 125 gpd peak clesign flow. In terms of Long Temr Acceptance Rate (LTAR) the field area would have required 433 S.F. based on the design flow of 1125 gpd and a LTAR of 1.30 gpd/S.F, Therefore the existing freld has an additional 502 Main Street. Suite 43. Carbondale, CO 81623.970 704-031 1 . Fax 970 704-03 1 3 $oPRr$ Et¡GmEtntno o llG civil consultants Bob Oclclo SE Job No, 22108.01 April22,2016 Page2 absorptive area of 46 S.F. that provicles for approximately 11% additional flow capacity of 120 gpd over the 1 125 gpcl peak design flow in teuns of the LTAR field capacity. The provided flow capacity based on the LTAR field size is greater thatr the rnaximum aclditional flow of 28 gpcl that could be generatecl fiom by the ADU due to fixturcs associated with a srnall kitchen ancl washing machine. All other ADU flow is based on the 150 gpd per bedtoont. The use of a kitchen sink mounted RO unit, for chÌnking and cooking onl¡ is insignificant in temrs of daily clesign flow. The single unit only delivers 0.035 gallon per minute. The maximurn daily water usage for the unit is 7 gpcl to procluce 2 gallons of clrinking water. The typical average daily flow from a lavatory and kitchen sink is 5.8 to 8.4 gpd per person per clay respectively. The additional overall systenr capacity of 120 gpd, based on the LTAR fielcl sizing, mitigates the potential additional loading ftom extra ADU kitchen and washing fixtures including the 5 gpcl backwash fiorn the RO unit. The existing OWTS has adequate capacity to serve the ADU inclucling any additional wastewater voluures associated with the use of a reverse osmosis water treatment system. If you have any question or need any aclditional irrfotmation, please call. Sincerely, SOPRIS ENGINEERING, LLC Paul E. Design Y Gørfiehd Coúrnty Community Development Department RECORD OF CONVERSATION WITH Ron Biggers, Deputy Fire Marshal Glenwood Springs Fire Department DATE: April 27,2016 SUBJECT: Oddo Accessory Dwelling Unit, Administrative Land Use Permit STAFF: Glenn Hartmann, Senior Planner I spoke with Ron in response to his email referral comments and phone messages on the Oddo Accessory Dwelling Unit Application. Consistent with his phone message, he confirmed that he did not have a problem with the ADU, provided that it was built to meet all the codes including fire separation between the unit and the barn and that it had proper separate entrance/exiting. I described the access driveway. He did not indicate any issues. He clarified that based on information provided by the Applicant that they could not rely on the pond forfire protection, noting access (in excess of 10'separation) and wintertime freezing of the pond. He was o.k. with the project moving fonruard. I indicated that I would add a note to the file reflecting our telephone conversation and if he had time to provide a follow-up email that would be appreciated. 108 Eighth Street, Suite 401 Glenwood Springs, Colorado 81601 (970) 945-8212 Glenn Hartmann From: Sent: To: Subject: Ron Biggers <ron.biggers@cogs.us> Wednesday, April 20, 201611:32 AM Glenn Hartmann RE: Referral for Oddo Accessory Dwelling Unit Follow-up to my recent phone message on the Oddo ADU applicatíon Glenn, Thanks, that procedure worked. The ADU is not a big concern as long as it is built to lnternational Building Code requirements. However I did find one area of concern which is they checked off and that is there is adequate fire protection. They site a pond with fire connection. On the site plan dated 2003, page 64 shows the pond and the connection. To my knowledge Glenwood Springs F.D. nor myself were consulted on the design/construction or sign off of the pond or the fire engine connection near it. I have a callinto Yancy Nichols at Sopris Engineering to find out if they designed the pond and have the spec on ít and the fire department connection. Next we should go out and see if we can get an engine to it and see if we can draft waterfrom it. On the drawing the location of the leach field may restrict engine access to it because it is located between the connection and the driveway. I do not know what weight this issue has on this application moving forward. But if adequate fire protection is a condition the County is requiring on the site, then ín my opinion the source they are using to meet it need to be approved and function tested by us. Ron Biggers Deputy Fire Marshal Glenwood Springs Fire Department Fire Sprinklers Save Lives!!! 970-384-6433 Disclaimer: This email message and all attachments are for the sole use of the intended recipient(s) and may conta¡n confidential and privileged ¡nformation. Any unauthorized review, use, disclosure, or distribution ié prohib¡ted. lf you are not the intended recipient, please contact the sender by reply e-ma¡l and destroy all copies of the original message. Content cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message, which arise as a result of e-mail transmission. lf verification is required, please request a hard-copy version. From: G lenn Hartmann [mailto:ghartmann@garfield-county.com] Sent: Wednesday, April 20, 2016 8:50 AM To: Ron Biggers <ron.biggers@cogs.us> Subject: RE: Referral for Oddo Accessory Dwelling Unit Hi Ron: Another opt¡on for accessing the application is to go to the County website, www.garfied-countv.com and then access the Community Development Department homepage. 1 On that page there is a link to applications under review. After the listíng of all the applicatíons there ¡s a Laserfísche Weblink. lf you type in Oddo under Applicant/Owner it will pull up the Oddo Applications. The current one is listed under the GAPA-03-16-8430 file name. Please let me know if that works for you. Thanks again for the extra effort in accessing the file Sincerely, Glenn Hartmann, Senior Planner Garfield County Community Development 970-945-1-377 xI57O gha ftma n n @ ga rf ie ld-co u ntv. co m From: Ron Bigge rs Ima i lto :ron. bigge rs@cogs. us] Sent: Tuesday, April L9,20L6 4:59 PM To: Glenn Ha rtmann <ghartmann@garfield-countv.com> Subject: RE: Referral for Oddo Accessory Dwelling Unit Glenn, I attempted to look at the fíle but am not able to activate the form to put in file number so it can be pulled up Ron Biggers Deputy Fire Marshal Glenwood Springs Fire Department Fire Sprinklers Save Lives!!! 970-384-6433 Disclaimer: This email message and all attachments are for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure, or distribution is prohibited. lf you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the or¡ginal message. Content cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message, which arise as a result of e-ma¡l transmission. lf verification is required, please request a hard-copy version. From: G lenn Hartman n Imailto:ghartmann @garfield-countv.com] Sent: Thursday, April L4,201.61-0:41 AM To: Ron Biggers <ron.biggers@cogs.us> Subject: FW: Referral for Oddo Accessory Dwelling Unit Hi Ron: Just wrapping up our review on this file and wanted to include any comments you might have. Please call if you have any questions. Thanks. Glen Glenn Hartmann, Senior Planner Garfield County Community Development 970-945-1377 xL57O ghartma nn@garfield-countv.com 2 From: Orrin Moon [mailto:Orrin. Moon@Crfr.us] Sent: Thursday, March 24,201,6 9:37 AM To: Ron Biggers (ron.biggers@cogs.us)<ron.biggers@cogs.us>; Glenn Hartmann <ghartmann@garfield-countv.com> Subject: FW: Referralfor Oddo Accessory Dwelling Unit Ron, This is in your district Glenn, This is in Glenwood Springs Fire District. TIËANK YQ.TJ, 08.&xN D.,, AAOOAI .&CTNG DIVTSTON CHIEFÆI&Ð M&RSTÌÅL colCI&ÅÐCI &rvE&. fr&s &EgcuE 97t-ø9'6-1?"4& orrin.moon(ôcrfr.us From: Glenn Haftmann [mailto:ghartmann@garfield-counV.com] Sent: Wednesday, March 23,20L6 3:14 PM To: Michael Prehm; Kelly Cave; Steve Anthony; Morgan Hill; megan.sullivan@state.co.us; bret.icenogle@state.co.us; Hoyer - DNR" Scott; clhuey@fs.fed.us; 'Chris Hale'; Orrin Moon; tillmon.mcschooler@xcelenergy,com Subject: Referral for Oddo Accessory Dwelling Unit Referral Agencies: Attached is a referral form and information on links to review the Oddo Application for an Accessory Dwelling Unit at 2425 County Road 137. Your review of the Application and submittal of any comments are most appreciated. 3 COIÛRÅ}O RIVFÀ r*¡.agæl,f rF "L !|. t:lf TÀ 4.¿i '--EST 101? Please contact me if you have any quest¡ons or difficulty in accessing the Applicatign materials. Thanks again for your assistance with this review. Sincerely, Glenn Hartmann, Senior Planner Garfield County Community Development 97O-945-L377 xL57O gha rtma nn@ea rfield-countv.com 4