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HomeMy WebLinkAboutpitkin.eh.264321100004 (2008) (Main House)Nib_CQunty - %-f NO SEPTIC PERMIT REQUIRED FORM Date: 2 2--( IQ Name: L,- a Project Name: Address of Property: D tSrvu- 4h - 11 JLVQ W Building Permit number: Parcel ID # �— �24 1- Uo - D D L% Scope of Project: 0 Um S i n eG�h D Enviroomental Health & Natural Resources Vic" . Remodel does not increase the bedroom/potential bedroom countI�� 5 bio np Existing septic system is sized for this project J A tom, 1( New buildings do not need a septic system (i.e. garage, shed, barn, et:)7bob h4 Project is not located in the area of the existing septic system No septicermit is required for this project. No further review is required by AP ROVED Environmental Health. Pitkin County Environmental Health & Natural Resources FOOD SERVICE This facility contains a retail food establishment. Environmental Health has reviewed and approved the plans. 0405 Castle Creek Road, Suite 10 Aspen, Colorado 81611 (970) 920-5070 fax (970) 920-5077 www.aspenpitkin.com/ehnr MEMORANDUM To: Mike Kraemer, Planning Department From: Warren Rider, Environmental Health & Natural Resources Department (EH/NR) Date: August 10, 2007 Re: Fabrizio Land Use Code Amendment (Case P105-07; PID 2643-211-00-004) ------------------------------------------------- ------------------------------------------------- SUMMARY OF RELEVANT PARTS OF APPLICATION: The applicant proposes a series of amendments to the Pitkin County Land Use Code to facilitate the placement of micro hydroelectric generation facilities in Pitkin County. DISCUSSION: No site visit was conducted for the review of this proposal as EH/NR staff are familiar with the site. The Environmental Health & Natural Resources Department has reviewed the details of the Fabrizio application under the authority of the Pitkin County Land Use Code and has the following substantive comments. RIVER AND STREAM CORRIDORS AND WETLANDS: Section 7-20-80: Applicant proposes changes to Sec. 7-20-80 by addition of language to specifically address micro hydroelectric facilities and their placement within the 100 foot setback to streams. Applicant proposes language that ensures the maintenance of minimum stream flows in any affected reaches to maintain the integrity of the wetlands and riparian habitat along the stream. Applicant did not, however, address minimum stream flows for in -channel habitat protection. Language should be proposed to address the protection of in -channel habitat as well as the riparian and wetland habitats. Staff also discussed this proposal with Bill Blakeslee, Water Commissioner with the State Engineer's office in Glenwood Springs. He was able to offer an example where a micro hydroelectric facility created two separate injuries to the water rights system. He would like to review each application on a case-by-case basis to assist the designers, so that injury does not occur and water can be managed properly during a call, if necessary. (See attached email). Language should be proposed that incorporates working with the State Engineer's office on system design so that water rights can be properly administered. Attachment Printed m Recycled Papez From: Blakeslee, Bill [mailto:Bill.Blakeslee@state.co.us] Sent: Tuesday, July 31, 2007 8:45 AM To: Warren Rider Subject: RE: Hydro -electrics and water rights Warren, My current thinking is that we should look at each one with no blanket policy. For instance there are some out there now with no communication with Div of Water Resources There is one on Snowmass Creek who takes water from a ditch, which does not recognize hydro as a right, and then dumps the outflow into a pond which has no right and thus has created two injuries. The difference between takeout and return often creates the problem. If the hydro right is not decreed, it can be subject to curtailment when the call goes on. LSI From: Warren Rider [mailto:warrenr@co.pitkin.co.us] Sent: Monday, July 30, 2007 10:24 AM To: Blakeslee, Bill Subject: Hydro -electrics and water rights Hey Bill, We have just received an application to amend our Land Use Code to make it easier to allow small hydro systems on residential lots. I wanted to check in with you to see what was necessary to pay attention to from a water rights standpoint. I don't want to approve anything that will mess with existing rights, even though this is a non - consumptive use. Thanks. wcr Warren C. Rider Pitkin County Natural Resource Specialist Environmental Health and Natural Resources 0405 Castle Creek Road, Suite 10, Aspen, CO 81611 970-920-5070 (p), 970-920-5077 (facsimile) Printed on Recycled Paper ME MEMORANDUM To: Michael Kraemer, Planning Department From: Warren C. Rider, Environmental Health & Natural Resources Department Date: May 18, 2007 Re: FaBrizio Family Trust Activity Envelope and Site Plan Review (Parcel ID # 2643-211-00-004; Case P031-07) ------------------------------------------------- ------------------------------------------------- This memo supersedes the previous memo dated May 1, 2007 from Environmental Health and Natural Resources. SUMMARY OF RELEVANT PARTS OF APPLICATION: Applicant requests an Activity Envelope and Site Plan approval for placement of a micro -hydroelectric power source on the property. Applicant proposes to divert water in the amount of up to 5.5 cubic feet per second (cfs) from Brush Creek directly above its confluence with the Roaring Fork River. Applicant has provided documentation confirming decreed water rights (conditional) in the amount of 5.5 cfs for generation of hydroelectric power and fire protection (Water Court Case No. 06CW145). The Pitkin County Environmental Health & Natural Resources Department conducted a site visit of the subject property on May 17, 2007 and has reviewed the details of the FaBrizio Family Trust application under the authority of the Pitkin County Land Use Code (LUC) and has the following comments. WATER COURSES AND DRAINAGE: 7-20-30: Applicant has committed to following the conditions of the LUC referring to water courses and drainage. Applicant will be required to submit details for approval relating to drainage and erosion control as a condition of approval for the hydroelectric generation facility and its entire associated infrastructure. Applicant will also be required to submit a detailed revegetation plan for approval, for the areas of disturbance with appropriate seed mixes. (See also Section 7-20- 40(d)(4) and (7). FLOODPLAIN HAZARDS: 7-20-40: Applicant proposes the installation of a water diversion structure, some minor culverts and associated infrastructure within the FEMA mapped 100 -year floodplain. Applicant is required to submit a completed Floodplain Development Permit Application for review of potential effects that this project may have on flood elevations. Applicant will be required to submit detailed plans for the diversion structure and all related components for Printed on Recycled Paper review by the Floodplain Administrator, County Engineer (if necessary), and Land Manager (if necessary). Applicant did not specifically address the requirements of Sec. 7-20-40 of the Code. Applicant will be required to demonstrate that there is no impairment of flow or storage capacity of the floodplain so as to cause foreseeable damage to others. It should be noted that placing structures within the floodplain for hydroelectric purposes cannot result in the loss of wetlands or riparian areas (Sec. 7-20-40 (c)(3)). Applicant, at this point, has not demonstrated compliance with these standards and they should be adequately addressed in the Floodplain Development Permit Application. RIVER AND STREAM CORRIDORS AND WETLANDS: 7-20-80: Applicant proposes the construction of a small power generation structure within the 100 -foot setback to the features identified in section 7-20-80(a)(1) and/or the 25 -foot setback identified in section 7-20-80(a)(2)(b). Applicant represents that there is no feasible alternative location to the proposed alignment. Applicant has identified two specific exceptions to the setback (water diversion facilities and culverts) with applicability to its application. While the exceptions identified would cover the diversion facility at the point of diversion and the culverts required to cross the channel, the hydroelectric generation structure, utilities, and piping are not water diversion facilities or culverts. The proposed location is not permissible under the current LUC. Even decreasing the setback to 50 feet (Sec. 7-20-80(a)(2)(a)) does not allow for placement of the power generation structure in its current proposed location due to proximity to Brush Creek on the north and isolated wetlands on the south. The proposed action will have extensive linear impacts within the 100 foot setback and a significant footprint within the 100 -foot setbacks to both Brush Creek and the Roaring Fork River, though the Applicant has proposed low impact methods for this development. Due to the steep nature of the site, it seems probable that there may be alternative alignments for the micro -hydro components that would be located outside all applicable setbacks to water resources, would cause less impact to water, riparian and wetland resources, and may not adversely impact the Applicant's power generation capacity. Applicant shall identify an alternative location for the additional structures currently proposed within the 100 foot setback. Specifically, the alternative location discussed with Tom Newland west of the septic field and further from Brush Creek should be evaluated. This alternative location appears, on the site plan, to meet both the minimum setback requirements for isolated wetlands (25 feet) and for blue line perennial streams (100 feet). It is the intent of this Code section to protect riparian and wetland corridors and water quality to the maximum extent practicable. Finally, Applicant has not presented detailed mitigation plans for the riparian and wetland areas that may be disturbed. A mitigation plan including wetland/riparian plant list and methods as well as erosion and sediment control methods and locations (Sec. 7-20-30(c)(1)(f)) will be required. This plan should address areas both inside and outside the 100 -year floodplain and can be submitted with the required Floodplain Development Permit application for approval. P—ted — Pv,y,led Paper A T B T G 11 12 13 !4 IS 16 ll' -O 1 6 1 6 1 1 5' 8 '-5" 9'-1" '-5" 15'_0" I 10,_0" 10'-06° • Z�_,,,1 53�_Il��, 10,_0, 1 I I 1 b,_2., 41 / © D © TON I , C 21'-4j" v S r 31 I11 f2l 25'-I I I 12'-0' .0 – 2 6'-9" 6 -9 j 6REAIffABT _ _ .-x-. I� I I — in — — � I I r� I I U I RIRR ro T•vA� m0 � I I I in E VEST PATIO ' 11 _ I LIVING ROOM I I Top of Finished Floo EI.8T' 1- 5/8" I i – T of Plate Mteri I I I I I I — — — '. 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PUMP.., - 5' MIN SCALE g = 30` NORTH ONE 2500 -GALLON, TWO-COMPARTMENT CONCRETE SEPTIC TANK/RECIRCULATION TANK WITH P-50 BIOTUBE PUTAP SYSTEM, FOLLOWED B`' ONE 2000 -GALLON, TWO-COMPARTMENT CONCRETE SEPTIC TANK WITH P-30 BIOTUBE PUMP VAULT. TWO ADVANTEX(tm) AX -20 UNITS MUST BE INSTALLED. SEE TYPICAL FOR PLUKIBING DETAILS O., '00r �QQ �0 00- � O Liquid Level v f 1_11 11 1 Level Control Float Assembly ` Check Valve (optional) Baffle Wall ...............:. Port Vault Inlet Ports P-30 Orenco Effluent Pump Filter Cartridge Drain Port Biotubem Pump Vault TANK SPECIFICATIONS SEPTIC TANK CAPACITY REQUIRED = q X 1.75 X (30 HOURS/24 HOURS) = 2844 GALLONS REQUIRED TANKS = 2500 -GALLON, TWO-COMPARTMENT, CONCRETE SEPTIC TANK/RECIRCTANK, FOLLOWED BY 2000 -GALLON, TWO-COMPARTMENT SEPTIC TANK WITH A DUPLEX BIOTUBE PUMP VAULT. CROSS SECTION OF TYPICAL GRAVELLESS CHAMBER BED 4" PVC OBERVATION SPIPE TYPICAL ADVANTEX-AX40 LAYOUT Inwt Rean With �'. 2ffl1 BASE OF BEDS MUST BE LEVEL EXTENT OF EXCAVATION 2' M 1 REVISED ONSITE WASTEWATER SYSTEM DESIGN SCARIFY SURFACE DVANTEX-40 NOTES: CONTROL PANEL SHOULD BE MOUNTED IN -LINE OF SIGHT' D TANK AND AX UNIT - PANEL VCOM - AX2OB2 DEDICATED 15A SERVICE FOR CONTROL BREAKER (IN OSI 4NEL) REQUIFED. FOR 230V PUMPS, FLA IS 8.0 FOR P-50 JMP AND 6.0 ;:OR P-30 PUMP. A SINGLE 20A SERVICE IS UFFICIENT FOR BOTH PUMPS. CONDUIT SHOULD BE USED FOR ELECTRICAL LINES. ELECTRICIAN MUST PROVIDED PHONE LINE AND TERMINATE NE INTO CONTROL PANEL. PANEL NOTES: FROM EFFLUENT PUMPING SYSTEM 1.25" INLET AND OUTLETS PERFORATED 3" OR 4" PVC LATERALS SUSPENDED WITHIN CHAMBERS ENTIRE LENGTH OF EACH CHAMBER RUN SLOPE FOR DRAINAGE BEDS MAY BE ANGLED TO FIT TOPOGRAPHY AND TO MINIMIZE REMOVAL OF EXISTING VEGETATION. THE SLOPE AT THE PROPOSED DRAIN FIELD IS APPROXIMATELY 10% TO THE NORTHEAST. VEGETATION CONSISTS OF A FULL COVER OF NATIVE GRASSES. Pump PUMP LINE MUST COMPLETELY DRAIN AFTER EACH DOSE LIMITATIONS - THESE PLANS MUST BE USED IN CONJUNCTION WITH LETTER AND SOILS DATA FORM PROVIDED. THE DESIGN IS BASED UPON INFORMATION SUBMITTED. IF SOIL CONDITIONS ENCOUNTERED ARE DIFFERENT FROM CONDITIONS DESCRIBED IN REPORT, ALL SERVICE SEPTIC L.L.C. SHOULD BE NOTIFIED. ALL OWS CONSTRUCTION MUST BE ACCORDING TO COUNTY REGULATIONS. THE INSTALLER SHOULD HAVE DEMONSTRATED KNOWLEDGE OF THE REQUIREMENTS AND REGULATIONS OF THE COUNTY IN WHICH THEY ARE WORKING. THE COUNTY AND ALL SERVICE SEPTIC L.L.C.MUST VIEW INSTALLATION Septic Tanks Project No. 1046 7/10/06 Pumping System - 2000 -Gallon, 2 -Com alment ' . VAI - VE DETAI s Orenco Systems® Incorporated 814 AIRWAY AVENUE 30" DIAMETER PVC SUtHERLIN, OREGON RISER PVC Riser with Grommet(s) 97479-9012 (INSULATED) Fiberglass or concrete riser (bond to tank adapter with recommended adhesive) TELEPHONE Slope Ground Fiberglass Gasketed Lid with (54t) �5s-4448 Away from Riser Stainless Steel Botts FACSIMILE - PVC Splice Box with Cord Grips (541) 459-2884 Conduit to Control Panel Discharge Assembly Conduit Seal Flexible Hose M I 4"VALVE _y AUTOMATIC Inlet Tee Tank Adapter (cast or bolted) Effluent Discharge DISTRIBUTING ASSEMBLY Liquid Level v f 1_11 11 1 Level Control Float Assembly ` Check Valve (optional) Baffle Wall ...............:. Port Vault Inlet Ports P-30 Orenco Effluent Pump Filter Cartridge Drain Port Biotubem Pump Vault TANK SPECIFICATIONS SEPTIC TANK CAPACITY REQUIRED = q X 1.75 X (30 HOURS/24 HOURS) = 2844 GALLONS REQUIRED TANKS = 2500 -GALLON, TWO-COMPARTMENT, CONCRETE SEPTIC TANK/RECIRCTANK, FOLLOWED BY 2000 -GALLON, TWO-COMPARTMENT SEPTIC TANK WITH A DUPLEX BIOTUBE PUMP VAULT. CROSS SECTION OF TYPICAL GRAVELLESS CHAMBER BED 4" PVC OBERVATION SPIPE TYPICAL ADVANTEX-AX40 LAYOUT Inwt Rean With �'. 2ffl1 BASE OF BEDS MUST BE LEVEL EXTENT OF EXCAVATION 2' M 1 REVISED ONSITE WASTEWATER SYSTEM DESIGN SCARIFY SURFACE DVANTEX-40 NOTES: CONTROL PANEL SHOULD BE MOUNTED IN -LINE OF SIGHT' D TANK AND AX UNIT - PANEL VCOM - AX2OB2 DEDICATED 15A SERVICE FOR CONTROL BREAKER (IN OSI 4NEL) REQUIFED. FOR 230V PUMPS, FLA IS 8.0 FOR P-50 JMP AND 6.0 ;:OR P-30 PUMP. A SINGLE 20A SERVICE IS UFFICIENT FOR BOTH PUMPS. CONDUIT SHOULD BE USED FOR ELECTRICAL LINES. ELECTRICIAN MUST PROVIDED PHONE LINE AND TERMINATE NE INTO CONTROL PANEL. PANEL NOTES: FROM EFFLUENT PUMPING SYSTEM 1.25" INLET AND OUTLETS PERFORATED 3" OR 4" PVC LATERALS SUSPENDED WITHIN CHAMBERS ENTIRE LENGTH OF EACH CHAMBER RUN SLOPE FOR DRAINAGE BEDS MAY BE ANGLED TO FIT TOPOGRAPHY AND TO MINIMIZE REMOVAL OF EXISTING VEGETATION. THE SLOPE AT THE PROPOSED DRAIN FIELD IS APPROXIMATELY 10% TO THE NORTHEAST. VEGETATION CONSISTS OF A FULL COVER OF NATIVE GRASSES. Pump PUMP LINE MUST COMPLETELY DRAIN AFTER EACH DOSE LIMITATIONS - THESE PLANS MUST BE USED IN CONJUNCTION WITH LETTER AND SOILS DATA FORM PROVIDED. THE DESIGN IS BASED UPON INFORMATION SUBMITTED. IF SOIL CONDITIONS ENCOUNTERED ARE DIFFERENT FROM CONDITIONS DESCRIBED IN REPORT, ALL SERVICE SEPTIC L.L.C. SHOULD BE NOTIFIED. ALL OWS CONSTRUCTION MUST BE ACCORDING TO COUNTY REGULATIONS. THE INSTALLER SHOULD HAVE DEMONSTRATED KNOWLEDGE OF THE REQUIREMENTS AND REGULATIONS OF THE COUNTY IN WHICH THEY ARE WORKING. THE COUNTY AND ALL SERVICE SEPTIC L.L.C.MUST VIEW INSTALLATION Septic Tanks Project No. 1046 7/10/06