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HomeMy WebLinkAboutPitkin.EH.264323300002 (2019)Page | 1 Pitkin County Environmental Health Department Onsite Wastewater Treatment System (OWTS) USE PERMIT Permit for Continued Use of an Existing OWTS 76 Service Center Road, Aspen, CO 81611 Phone: 970-920-5070 Fax: 970-920-5374 www.aspenpitkin.com/EHNR Parcel ID #: 2643-233-00-002 OWTS Use Permit #: 0007.2019.POWU Date Issued: 3/14/2019 Issued By: Bryan Daugherty Expiration Date: 3/14/2020 Owner(s): GRE II Holdings LP Property Address: 1025 Star Mesa Dr Legal Description: Licensed Inspector: Carla Ostberg Inspection Date(s): 10/15/18 SYSTEM INFORMATION Components Type Capacity/Size Primary Treatment Unit Concrete single compartment tank Concrete single compartment tank Dosing tank 2500 Gallons 2000 Gallons 500 Gallons Secondary Treatment Unit Absorption Area Chamber trenches 1905 ft2 Other System Components Dosing Siphon OWTS Use Status: In use at the time of the inspection. Not in use at the time of the inspection.* *If the OWTS was not in use at the time of the inspection, it is recommended that the system be re -evaluated when it is in use for a more accurate evaluation of the system. System Records: Permit #: 0044.2010.POWT Date of Issuance: 1/6/11 Date of Final Approval: 6/20/12 # of Bedrooms or fixtures served by OWTS: This system is designed to serve 11 bedrooms Operational Status: According to the inspector’s observations of the system on site the system appeared to be functioning as designed at the time of inspection. All tanks were in good water-tight condition with tees in place and risers accessible from grade. Observations indicated that the dosing siphon was functioning properly. The field area did not show any signs of failure such as surfacing effluent. Inspector Recommendations: Clean effluent filter annually or as needed, replace dosing siphon counter, replace missing inspection port caps. Department Recommendations: Continue annual maintenance Issuance of this OWTS Use Permit is based solely on the conditions observed and reported by the inspector to the Department on the date of the inspection(s) and on Department records at the time of permitting. The issuance of this permit does not constitute a guarantee, warranty, or representation by the Department that the system will operate properly or will not fail or that the system will not be subject to future enforcement action to correct non-compliant conditions. Estimated capacity of the system has been listed on the permit and we recommend that you monitor and/or meter water use to prevent overuse and possible failure. 2/5/2019 Pitkin County Mail - Online Form Submittal: Property Sale/Remodel Use Permit Application https://mail.google.com/mail/u/0?ik=c2c72bb885&view=pt&search=all&permthid=thread-f%3A1624667608670362426&simpl=msg-f%3A16246676086…1/3 Bryan Daugherty <bryan.daugherty@pitkincounty.com> Online Form Submittal: Property Sale/Remodel Use Permit Application 1 message noreply@civicplus.com <noreply@civicplus.com>Tue, Feb 5, 2019 at 2:56 PM To: schuyler.clay@pitkincounty.com, ehapps@pitkincounty.com Property Sale/Remodel Use Permit Application Please Note: Each OWTS System must be submitted individually. If there are additional systems on the property, additional applications are required. Job Parcel ID 264323300002 Physical Address 1025 star mesa drive Residences 1 No. of Bedrooms 8 Square Footage of each Residence 14,492 & 507 Purpose of Use Permit Remodel/Addition Lot 19 & 22 Block n/a Filing n/a Subdivision n/a (Section Break) Primary Contact Information Primary Contact First Name hugh Primary Contact Last Name marsh Primary Contact Email Address hmarsh@hdaspen.com Primary Contact Address PO box 4782 Primary Contact Phone Number 9703794009 Primary Contact City Aspen Primary Contact State CO Primary Contact Zip 81612 2/5/2019 Pitkin County Mail - Online Form Submittal: Property Sale/Remodel Use Permit Application https://mail.google.com/mail/u/0?ik=c2c72bb885&view=pt&search=all&permthid=thread-f%3A1624667608670362426&simpl=msg-f%3A16246676086…2/3 (Section Break) Owner Information Primary Contact is Owner?No Owner First Name GRE II Holdings LP Owner Last Name Gerstenhaber Owner Email Address DGerstenhaber@argonautcap.com Owner Mailing Address 546 fifth avenue. 17th floor Owner City New york Owner State new york Owner Zip 10036 Owner Phone 212 303 4338 Owner Fax Field not completed. Indicate Preferred Method of Payment Check Payment Contact Email for Debit/Credit Payment hmarsh@hdaspen.com (Section Break) Licensed Inspector Information Primary Contact is Licensed Inspector? No Inspector First Name carla Inspector Last Name ostberg Inspector Email Address carla.ostberg@gmail.com Inspector Mailing Address 33 four wheel drive road Inspector City carbondale Inspector State co Inspector Zip 81623 Inspector Phone Number 970 3095259 Inspector Fax Number Field not completed. (Section Break) Uploads Pitkin County Inspection Form 10.25.18 1025 Star Mesa Dr OWTS Inspection Form.pdf 2/5/2019 Pitkin County Mail - Online Form Submittal: Property Sale/Remodel Use Permit Application https://mail.google.com/mail/u/0?ik=c2c72bb885&view=pt&search=all&permthid=thread-f%3A1624667608670362426&simpl=msg-f%3A16246676086…3/3 Site Plan site plans.pdf Floor Plans floor plans.pdf Additional Reports, etc.invoice for pump out.pdf Comments or additional information: our original land use application had sized the septic system to include this new pool and pavilion PLEASE READ BEFORE SELECTING SUBMIT: By selecting SUBMIT, I certify that I am the owner or representative with the legal authority to agree to the conditions of this permit, the above information is complete and accurate, and that I have provided complete and accurate information in all of the documents included in my application package. I acknowledge that this department may revoke any permit I am issued if my application is found to contain any inaccurate, false, or misleading information. Building Permit Instructions If this application is part of a building permit application, please bring a copy of this application to your building Pre-Submittal meeting. To get a copy, either enter your email address to receive a copy of your application, or select "Submit and Print" below. Email not displaying correctly? View it in your browser. i,x, K I N Onsite Wastewater Treatment Systems (OWTS) Use Permit Inspection Form ""'COUNT Pitkin County Environmental Health Department 76 Service Center Rd, Aspen, CO 81611 Phone:970-920-5070 Fax: 970-920-5374 Website: I http://pitkincounty.com/248[Wastewater-Treatment Inspection form for continued use of an existing OWTS Owner's Name: Address: Parcel Number: Inspection Date: Inspector's Name: Business Name: Phone Number Email: Pitkin County Systems GRE III Holdings, LLC 1 225 Star Mesa Drive As en CO 2643 233 00 002 October 15 2018 Carla Ostber CBO Inc. (970) 309-5259 carla.ostberg@gmail.com Inspector License Number: 1017 A copy of this inspection report will be remitted to Pitkin Countv Environmental Health Department b the Licensed Systems Inspector within 60 days of the inspection regardless of whether the system passes or fails. QUESTIONS FOR PROPERTY OWNER PRIOR TO INSPECTION: Is the home currently occupied? EYES ❑NO limited If NO, how long has the home been vacant? occupancy How many bedrooms are in the home? 17 If secondary treatment is used, who is the maintenance provider? I n/a RECORDS: Were system records available from Pitkin County? EYES ❑NO If YES: Permit number: I OWTS Permit Date of Final Approval: lJune 20, 2012 0044.2010.powt # of bedrooms permitted: 11 Was an as -built drawing available? E YES ❑ NO Is the as -built drawing accurate? ❑YES ❑NO If NO: Complete a drawing of the system on last page of this form as accurately as possible. Any question marked FAIL will require correction before an OWTS Use permit is issued. SITE CONDITIONS: Proper grading, no evidence of erosion? EPASS ❑FAIL Improper vegetative cover? 0 NO ❑ YES Evidence of compaction such as heavy machinery or livestock? 0 NO ❑ YES Improper discharges such as straight pipes? ❑' PASS ❑FAIL Evidence of high ground water? 0 NO 0 YES Snow cover present? 0 NO ❑ YES Page 1 Effective Date 1/12/2017 TANK: Tank 1 Tank 2 Tank 3 Tank capacity 2,500 =gallons 2,000 gallons 500 j gallons Tank material concrete concrete concrete # of compartments 1 1 1 Date of last pumping unknown Lids/risers in good condition Pass Pass Pass Risers to grade Yes Yes Yes Riser height 1' 1' 1' Riser condition/watertightness ok ok ok Inlet sanitary T/baffle Pass Pass Select One Outlet sanitary T/baffle Pass Pass Select One Effluent filter (if part of design) N/A Pass Select One Condition of tank material Pass Pass Select One Tank was pumped for inspection No Select One Select One If YES, list the pumping company recommend pumping If NO, when was the last pumping Scum level (1st compartment) inches inches inches Sludge level (1st compartment) inches inches inches Scum level (2nd compartment) inches inches inches Sludge level (2nd compartment) inches inches inches Backflow (if pumped) Select One Select One Select One Midtank baffle Select One Select One Select One Watertightness Select One Select One Select One PUMPS/DOSING SIPHONS: Is a pump or dosing siphon present? 0 YES ❑ NO If YES, is the pump/dosing siphon functioning properly? OPASS ❑FAIL Does the pump/wiring/dosing siphon appear to be in good condition? ❑' PASS ❑FAIL Is the high water alarm working, both visible and audible? ❑PASS ❑FAIL n/a on alarm SECONDARY TREATMENT: Is a secondary treatment unit present? ❑YES 0 NO ❑UNKNOWN If YES, does the unit appear to be in good working condition? YES NO Does the owner have a current maintenance contract for the unit? YES H NO ❑UNKNOWN Maintenance Provider: n/a Phone: If there is no maintenance contract, a contract must be in place prior to occupancy of the home. A copy of the contract must be submitted to Pitkin County Environmental Health Department. ABSORBTION AREA: Effluent surfacing? Evidence of past surfacing? Surface dampness? Excessive odors? Field location verified by observation ports or probing: Liquid in observation port? If YES, record depth: Distribution Box or ADV part of original design? If YES, is it accessible from grade? Is it level and in good condition? ❑■ PASS ❑FAIL E NO ❑YES F. NO ❑ YES ❑■ NO ❑ YES ❑Ports ❑Probing ❑■ NO ❑ YES 0 inches ❑■ YES ❑ NO PYES NO PASS FAIL UNKNOWN Page 2 Effective Date 1/12/2017 'lease list any recommendations for the continued use of the system: • Clean effluent filter annually, or as needed. • Replace dosing siphon counter, if desired. Specifications are enclosed. • Replace any missing caps on inspection ports. • Pump septic tanks. Were any repairs done as a result of this inspection? ❑� NO 0 YES If YES lease describe the repairs. To the best of my knowledge and training, the information collected in this inspection is accurate as of October 25 1, Zp 18 Licensed Systems Inspector Signature: Carla Ostber Digitally18.10.ned 514:5by :05 06'rg v p g 9 Date: 2018.10.251453:05 O6'00' Additional Notes: provide pumping invoice with submission of application and this report Clearly label any pictures and attach them to this form. Save Form Clear Form Print Form Page 3 Effective Date 1/12/2017 CBO Inc. 33 Four Wheel Drive Road Carbondale, CO 81623 cell) 970-309-5259 office) 970-704-0484 carla.ostberg(@gmail.com October 25, 2018 Hugh Marsh hmarsh CcDhdaspen.com Onsite Wastewater Treatment System (OWTS) Use Permit Inspection 1025 Star Mesa Drive Pitkin County, Colorado Hugh, As requested, CBO Inc. performed an Onsite Wastewater Treatment System (OWTS) Use Permit inspection at 1025 Star Mesa Road, Aspen, Colorado on October 15, 2018. The legal description of the 37.4-acre property is Lots 19 & 22, Westcliffe Parcel, Star Mesa. The permit and record drawing were provided by Pitkin County Environmental Health Department (Parcel ID #2643-233-00-002). The subject OWTS consists of one 2500-gallon, single -compartment concrete septic tank followed by a 2000-gallon, single -compartment concrete septic tank, followed by a 500-gallon, concrete dosing chamber with a dosing siphon. Effluent is dosed to a flow splitter basin and then to five gravelless chamber trenches, with the first four trenches having 21 `Quick 4' chambers in the first section connected serially to an additional 17 chambers. The last trench has 23 `Quick 4' chambers connected serially to an additional 23 chambers for a total of 198 `Quick 4' Infiltrator® chambers and 2376 square feet of infiltrative area. Onsite Wastewater Treatment System Permit 0044.2010.POWT documents this system. The system was sized to accommodate 11 bedrooms. The permit received final approval on June 20, 2012. The septic tanks are located to the east of the residence, just below the driveway. We did not observe a clean out near the house. All septic tank lids were accessible from grade at the time of our inspection. All inlet and outlet tees were present. We recommend pumping both the 2500-gallon and 2000-gallon septic tanks. There is a filter on the outlet tee of the 2000-gallon septic tank. This filter was cleaned as part of the inspection. All liquid levels were normal at the time of our inspection. It should be noted that these large tanks are likely mid -seam tanks. We did not active the dosing siphon at the time of the inspection; however, water staining on the side of the dosing chamber was consistent with proper functioning of the siphon. We found a counter that had not been hooked up. We have provided specifications if installation of a new dosing counter is desired. We observed the flow splitter. Functioning of the splitter appeared to be normal, diverting effluent to five trenches. Inspection ports were present in the soil treatment area (STA) and all ports were dry. Some ports were missing caps. We recommend replacing the caps. We walked the area and found no evidence of surface saturation or failure at the time of our inspection. This evaluation is not a guarantee of future system performance. This inspection is good for one year. Recommendations: • Clean effluent filter annually, or as needed. • Replace dosing siphon counter, if desired. Specifications are enclosed. • Replace any missing caps on inspection ports. • Pump septic tanks. Any questions regarding permit submission can be directed to Pitkin County Environmental Health Department, 970-920-5070. A pool house is proposed. Plumbing in the pool house will be accessory to use of the main house. We recommend brining the sewer line from the pool house into the main house sewer line with a "wye" fitting just before the septic tank. It should be noted that the sewer line should not come within 25-feet of any water line. If encroachment of the setback or crossing is necessary, the sewer line must be encased in a larger, minimum Schedule 40 pipe with the sewer line sitting on the bottom of the encasement pipe. End caps should be secured in a water -tight fashion. Disclaimer: This inspection is intended only as an evaluation of the present condition of the OWTS based upon what was observed and the Licensed Inspector's expertise in onsite wastewater technology. The Inspector has not been retained to warrant or guarantee the proper functioning of the system for any period of time in the future. Because of numerous factors which may affect the operation of an OWTS, as well as the inability of the Inspector to supervise or monitor the use or maintenance of this OWTS, this report shall not be construed as a warranty by the Inspector that the system will function properly for any particular prospective buyer, and the Inspector disclaims any warranty, either expressed or implied, arising from the inspection of the OWTS or this report. The evaluation does not ascertain the impact the system is having on groundwater. Please call with questions. Sincerely, Carla Ostberg, MPH, REHS NAWT Certified Inspector Certification # 110441TC Exp. April 2020 Inlet of 2500-gallon tank outlet of 2500-gallon tank Z Viewoftank lids 9 Inlet of 2000-gallon tank LOW-7. i M outlet of 2000-gallon tank (with effluent filter) dosing siphon (unopened counter sitting on top of siphon) Inspection port Inspection ports in STA some ports missing caps Flow splitter basin ONSITE WASTEWATER TREA RENT SYSTEM (OWTS) CONSTRUCTION PERMIT 0405 Castle Creek Road, Suite 10 • Aspen, CO • 81611 Phone: 970.92D.5070 Fax: 970-920-5077 Permit #. 0044,2410. owt Parcel ID #: 2643-233-00-002 Permit Issued: ❑NEW ❑REPAIR ®REMODELIADDITION ❑TANK ONLY ❑FIELD ONLY DAMENDMENT Owner(s): GRE II, LLP Property Address: Legal Description: Size of Lot: 37 1026 Star Mesa Drive Westcliffe P Size of Building: 14,214 gel, Lots 19 & 20, Star Mesa Acres Detached Accessory Unit: Sq. Ft. Size of Accessory Unit. EYES ONO Sq. Ft. The system is designed for: 11 bedrooms (current plans indicatey bedrooms plus a future pool area with a powder room) p t r ckan LY o r&-r Ip I oLt15 CO Z) I S) l I Designed By Phone #. All Service Septic Project #: _ 970-618-5033 Mailing Address Fax #: 303-216-2796 1739 Dated: PC Box 2844, Glenwood Springs, CO 81602 Email Address: TDetzl2comcast.net Perc Rate: 17 mpi Profile Hole Depth: 8 ft Depth to Groundwater or Bedrock: Greater titan 8 ft Minimum Tank Capacity: 4125 gallons Minimum Absorption Area: 19055 s _ft wl 50% reduction Permit Conditions: This CVVT5 Construction Permit is approved on the condition of compliance with the engineer design as submitted with the application and the specifications cited above Changes must be approved by this Department and the engineer prior to construction. The existing system will be abandoned and replaced. The new system will consist of one 2500 gallon single compartment tank followed by a 2000 gallon, two -compartment tank with an effluent filter on the outlet and a 500 gallon tank with a dosing siphon. A flow splitter basin will distribute effluent to 5 trenches. The first 4 trenches will consist of 21 Quick 4 chambers tied serially into another 17 chambers and the last trench will be a row of 23 chambers tied serially into another 23 chambers. Each trench set should be separated by 6 feet of undisturbed soil. The trenches should have approximately 1 '/2 to 2'/2 feet of cover over the chambers. This Permit must be kept on -site during installation. The engineer must dd a final inspection of the installation and submit an "as -built" letter to this Department within 30 days of the final inspection, unless a longer period of time has been agreed upon, in writing. This Department must also be called for the final inspection with a minimum of48 hours notice - Min imurn horizontal distances between components of the system and physical features shall conform to the requirements of the Pitkin County OWTS Regulation. This Permit is conditioned upon the property owner(s) providing for regular inspection, cleaning, and maintenance of thesystem by qualified personnel, in accordance with the manufacturer's recommendations and the requirements of the Pitkin County OWTS Regulation. Issuance of this OWTS Construction Permit does not constitute a guarantee. Warranty, or representation by the Department that the system will operate properly or will not fail, THIS PERMIT IS EXPRESSLY CONDITIONED UPON COMPLIANCE WITH ALL REQUIREMENTS OF THE PITKIN COUNTY OWTS REGULATION, INCLUDING BUT NOT LIMITED TO THOSE CONDITIONS SPECIFIED ABOVE. Plans and specifications for the proposed OWTS have been reviewed and are considered satisfactory. Permission is hereby given to the property owners) to perform the work indicated in accordance with the Pitkin County OWTS Regulation. This Permit will expire 1 year from the date of issuance unless construction an the system has commenced. An "as -built" drawing must be submitted and approved by EHINR before final approval of the system will be issued_ Issued By. lnstalier. #: Date: I/ �,; 1 ( f Expires I ., Reactivation Authorized by: Final Appr val Issued By: Date 1 New Expiration Date: Pit€tin County Environmental Healfh Department Contact Log Sheet Name,* Parcel EFL: Address: Personbken To Comments ! Action to be Taken ... -...: _ . Initials Time s C - 1 nr ifM r4itfilm �- �•_�■;- ,ram* �� i1 .1. ■ �Ii! � i ��� lip l - '•i�' � � A arm ■ �� 011 � lo I a June 20, 2012 PO Sox 2944 Glenwood Springs, CO81602 Ph 970-618.5033 Fax 03-218.2746 Roland and Broughton 117 South Monarch Street Aspen, CO 81611 Installation Observations Westcliffe Project 1025 Star Mesa Drive Pitkin County, Colorado Project No. 1739 Richard, ALL SERVICE septic, LLC performed installation observations for the onsite wastewater treatment system (OWTS) on May 4`h, July 19`h, August 9`h, and October 18'b 2011 for the subject property. On May 41h a site visit was conducted to evaluate the existing drain fields and implications of the existing liners. A letter was provided. On July 19`h we observed the septic tanks, and requested a filter handle. We requested the primary outlet tee be raised, and a change in the 90 deg fitting in the Flow Sputter Basin. On August Wh we observed prior requests completed. The installation included a 2500 gallon single compartment septic tank, followed by a 2000 gallon single compartment septic tank with an effluent filter, followed by a 500 gallon septic tank with a dosing siphon. The drain field consisted of 10 gravelless chamber trenches with a total of 198 Q-4 chambers, equaling an area of 1955 SF. A flow splitter basin serves effluent to the drain field. The OWTS was generally installed according to specifications. This observation is not a guarantee of workmanship and/or parts and materials. ALL SERVICE septic, LLC should be notified if changes are made to the OWTS. LIMITS: The observation was based on information submitted and our site visit. If conditions are different from conditions described in this letter, ALL SERVICE septic, LLC should be notified. All additional OWTS construction must be according to the county regulations. The installer should have documented and demonstrated knowledge of the requirements and regulations of the county in which they are working. ALL SERVICE. septic, LLC Reviewed Timothy R. Petz �� A� Copy sent to Pitkin County Health Dept. Richard IH 0 This article may describe design criteria that was in effect at the time the article was written. FOR CURRENT DESIGN CRITERIA, call Orenco Systems, Inc. at 1-800-348-9843. Design, Use and Installation of Dosing Siphons for On -site Wastewater Treatment Systems Eric S. Ball, P.E. Introduction Automatic dosing siphons are nothing new. They've been used for 100 years or more to flush livestock yards, in sewage treatment plants to dose trickling filters, and to dose recirculating sand filters. What is new is that as increases in suburban and rural populations have spurred development of innovative and alternative wastewater management methods, dosing siphons have become commonplace in single family and small community systems where they are used to dose gravity and pressurized drainfields as well as sand filters. Dosing siphons are useful devices for dosing fixed, finite volumes of liquid at flow rates ranging from a few gallons per minute to several hundred gallons per minute. In on -site wastewater systems, siphons are especially useful in converting small, continuous flows into large intermittent dosing flows. Modern siphons are made of corrosion resistant materials, have no moving parts, require no power source, are easy to install, and require very little maintenance. They are a cost-effective alternative to pumps in many situations, especially in remote areas and other sites where electricity is difficult to obtain. One criterion must be met in any siphon system: the area to be dosed must be downhill from the dosing tank. A siphon will discharge only to a lower elevation. Basic Siphon Operation Nomenclature An automatic dosing siphon has two main components —the bell and the trap (Figure 1). The bell includes the bell housing itself, a vertical inlet pipe, an intrusion pipe, and a snifter pipe. The trap includes a long leg, a short leg, and a discharge fitting with an air vent. Depending on the siphon drawdown, the trap may be outfitted with an external trigger trap. The bell and trap are connected with threaded fittings. NTP-OSI-ESB-2 8/96 Page 1 OFF f $NJFTER PIPE INITRLISION RIPE IN LET RIPE LONG L E ELL ell — 11VAU -,,'VENT PIPE DISCHARGE FITTING TRAP BEM S HST LEG Figure ]: Siphon Nomenclature Single Siphon Operation Following installation in a tank, a siphon must have its trap(s) filled with water. When fluid rises above the open end of the snifter pipe, air is sealed in the bell and long leg of the siphon. As the fluid in the tank rises further, the pressure on the confined air increases and forces water out of the long leg of the trap. Once the pressure is great enough to force all the water out of the long leg, the trapped air escapes through the short leg to the air release vent pipe. At this point, the siphon has been "tripped" and fluid is discharged from the siphon until the liquid level in tank drops to the bottom of the bell. Air is then drawn under the bell which "breaks" the siphoning action and the process begins again. Figure 2 shows one complete cycle of a single siphon. At the end of a dosing cycle, incoming flow may seal off the bottom of the bell before the bell is fully recharged with air. The snifter pipe, with its open end an inch or more above the bottom of the bell, allows a full recharge of air beneath the bell at the end of each cycle. Because the end of the snifter pipe is the elevation at which air becomes trapped under the bell, shortening or lengthening the snifter pipe is an effective way to increase or decrease the "on" or "trip" NTP-OSI-ESB-2 8/96 Page 2 level of the siphon. There are limits, however, to the amount of adjustment allowable. Installers should consult the siphon manufacturer before altering the length of the snifter pipe. MM 2a. Trap must be primed (filled with water) prior to raising liquid level above bottom of snifter pipe. M level 2c. Just before triggering, water level in long leg is near bottom of trap. on le 2e. Siphon continues to dose until water level drips to bottom of bell. Figure 2 on lei 2b. Water is discharge from long leg as water level rises above snifter pipe. on level 2d. Siphon is triggered when air is vented through vent pipe. on lf� 2f. Air under bell "breaks" the siphon. Snifter pipe ensures full recharge of air under bell. NTP-OSI-ESB-2 8/96 Page 3 Some siphons require an additional mechanism called a trigger trap to exhaust all of the air from under the bell at the beginning of the cycle. Whether or not a siphon requires a trigger trap depends on several variables: bell diameter, bell height, trap diameter, and the height over the bell at which the siphon activates. For a given bell configuration, it is determined mathematically and experimentally whether a trigger trap is necessary. The trigger trap actually starts the siphon cycle. Siphons needing trigger traps typically have relatively short drawdowns as compared to the siphon diameter and thus have lower available driving head to exhaust air. Without a trigger trap, the full volume of trapped air fails to exhaust and the siphon goes into what is called a drooling, or trickling mode. In this mode —with some air still trapped under the bell —the water level has risen inside the bell above the intake of the inlet pipe and liquid is exiting the siphon at a fraction of the full siphon discharge rate. Absent a true siphoning effect, the water level in the tank will not drop below the level of the inlet pipe's intake. Since this intake is above the bottom of the snifter pipe, the siphon cannot be recharged with air and will continue to operate indefinitely in a trickling mode. It is possible to force a siphon that should have a trigger trap (but doesn't) into seemingly working properly by filling the tank very quickly. This rapid filling provides extra driving head to force all the air out of the bell. However, most tanks with an installed siphon fill much slower than this rapid rate. A recent study has shown poorly designed siphons (needing trigger traps) to be a primary cause of failures in the field. Coincidentally, the same circumstance —filling the tank too rapidly at the end of a dosing cycle —can also cause a properly designed siphon to go into a trickling mode. In this case, water is entering the tank so fast that the snifter pipe is sealed before the bell is fully recharged with air. Alternating Siphons Two identical siphons, installed in a single chamber at the same elevation (Figure 3), will alternate automatically. Because of slight variations in dimension and/or slight variations in the elevation of the two bells, one of the two siphons will trigger first. The siphon that triggered first will end the first dosing cycle with its trap full. The siphon that didn't trigger will have lost much of the water in its trap at the end of the first dosing cycle. When the tank fills up a second time, the second siphon will trip first since its trap is only partially full and requires less pressure to trip. The third time the tank fills up, the first siphon, with its trap only partially full, will trip first. This alternating process will repeat itself indefinitely. In Figure 3, the on level of the first cycle will be a distance H' above the bell. All subsequent cycles will operate at height H, since all cycles after the first are triggered from a partially full trap. For most siphons, H is approximately one inch lower than H'. Multiple Sequencing Siphons Near the turn of the century, several methods were designed to alternate three, four, or more siphons to dose sewage. These include various types of sequencing starting bells and other mechanical devices. Now, electrical or air operated solenoid valves are also used. However, troubleshooting and maintenance of multiple sequencing siphon systems can be difficult. There are simpler, more reliable ways to design systems that avoid multiple sequencing siphons. These include flow splitting devices prior to any number of single or alternating dosing siphons. NTP-OSI-ESB-2 8/96 Page 4 3a. Alternating siphons with traps primed prior to first cycle. 3c. Because of slight variations in the two siphons, on (siphon B in this example) triggers before the other. 3e. Siphon A, needing less pressure on its partially full trap, triggers the second cycle Figure 3 3b. Water is discharged out of the long leg of both siphons as the water level rises in the tank above the snifter pipe. 3d. End of first cycle -siphon that didn't trigger (A) has partially full trap. 3f. End of second cycle -siphon B now has partially full trap and will trigger next. NTP-OSI-ESB-2 8/96 Page 5 Siphon Sizes The size of a siphon refers to the diameter of its trap. Siphons are most commonly available in diameters from two inches to eight inches. Common drawdowns may range from four to 48 inches. Most manufacturers use three digit model numbers. The first digit refers to the siphon's diameter and the last two digits indicate the drawdown. A model 324, for example, designates a three inch diameter siphon with a 24 inch drawdown. Custom siphons can be built with virtually any diameter and drawdown. Siphon discharge flow rates are normally given in gallons per minute (gpm) in one or all of the following forms: maximum flow rate, minimum flow rate, and average flow rate. These flow rates are measured at open discharge and thus do not include transport pipe friction losses or head losses due to trapped air. As discussed later, pressurized systems are usually designed using a flow rate somewhat below the average flow rate of the siphon. Installation Configurations Siphons can be installed in virtually any type of tank, basin, or reservoir that holds a fluid. In wastewater systems, siphons are installed most often in concrete or fiberglass dosing septic tanks ranging in size from 500 to several thousand gallons. They also may be installed in smaller basins ranging in size from about 50 gallons to a few hundred gallons. Basins are commonly constructed of concrete, fiberglass, PVC, or polyethylene. For small flow rate systems (30 gpm or less), the most cost-effective installation is a two inch siphon mounted in a screened vault which is placed directly in a single compartment septic tank (Figure 4), so that a second dosing tank or chamber is not required. Two inch vault -mounted siphons may also be installed in compartmented septic tanks or separate dosing tanks. This type of siphon suspends from the top of the tank and is easily removed for cleaning and maintenance of both the siphon and the tank. TO DOSE COUNTER- -ON- LIQD ID LEVEL "OFF" LIQI:ID LEVEL ..... . .... . ... :..:..: '.. Figure 4: Single Compartment Dosing Tank NTP-OSI-ESB-2 8/96 Page 6 Systems that are designed for flow rates greater than 30 gpm require a three inch or larger siphon installed in a compartmented septic tank or separate dosing tank (Figures 5 & 6). Three inch and larger siphons are located in the tank with the bottom of the trap positioned in one of three places: above the bottom, on the bottom, or through the bottom of the tank (Figures 6,7, & 8). Placement depends on the dimensions of the tank and siphon and the desired trip level. The two most common methods of installation are bolt -in -place and cast -in -place. If the trap of the siphon does not need to extend beneath the bottom of the tank, either method may be used. A fiberglass bolt -in bracket is simplest, quickest, and most cost effective in this situation (Figures 5 & 6). If the trap of the siphon needs to extend below the bottom of the tank (Figure 7), the cast -in method must be used. Installations through the tank floor are more difficult and time consuming than other methods. Filtering Regardless of the type of siphon or method of installation, filtering the effluent before it reaches the siphon is required. A filter helps protect the performance of the siphon, the distribution network, and the disposal area. A key benefit of filtering is keeping the siphon's snifter pipe clear. If blockage, even momentary, of the snifter pipe occurs Figure 5: Bolt -In method of installation in a single compartment dosing tank during the end of the discharge cycle, the siphon may cease to operate and fail in a trickling mode. Momentary blockage may be caused by floating debris that subsequently floats away or disintegrates, with the result that the siphon ceases to function for no apparent reason. Three methods of filtering are used: a screened vault (two inch siphons only), an outlet filter installed in a tank or chamber prior to the siphon chamber (Figure 5), or a screen that surrounds the siphon itself (Figure 6). For siphons three inch and larger, the preferred method of filtering is the outlet filter. NTP-OSI-ESB-2 8/96 Page 7 Figure 6: Bolt -In method of installation in a two compartment dosing tank Figure 7: Cast -In method of installation (through tank floor) Siphon Applications In on -site treatment systems, siphons commonly discharge to gravity or pressurized drainfields. Distribution to gravity drainfields is done most effectively by directing the siphon discharge to a Hydrosplitter. Pressurized by the siphon, a Hydrosplitter distributes flow evenly to each individual trench. Flow can be split unevenly (with the use of flow control orifices in the Hydrosplitter) to NTP-OSI-ESB-2 8/96 Page 8 accommodate differing trench lengths. A siphon can also discharge into common drop and distribution boxes. The flow rate of the siphon is usually not as critical when discharging to a gravity box as it is when discharging to a Figure 8: Cast -In method of installation (above tank floor) Hydrosplitter. On a system using a Hydrosplitter, the flow rate of the siphon must be matched with the flow control orifices so that when the siphon discharges, the transport line will backfill to a height to provide pressure at the Hydrosplitter. Sizing siphons for pressurized drainfields is similar to sizing those with Hydrosplitters in that the discharge rate of the siphon must be large enough to cause the transport line to backfill. The pressure at the orifices (squirt height) is created by the vertical elevation (static head) of the backfilled portion of the transport line as shown in Figure 9. Figure 9: Squirt height relationship to transport line NTP-OSI-ESB-2 8/96 Page 9 Siphons are regularly used in septic tanks to dose intermittent sand filters. A two inch siphon may also be installed in a sand filter collection basin. If siphons are used for both functions, a complete sand filter system with pressure dosed drainfield can be installed with no power required. Of course, this is limited to a fairly well sloped site since there must be fall from the septic tank to the top of the sand filter and from the bottom of the sand filter to the disposal field. A siphon may be discharged to a flow splitter basin to divide large flows. Similar to Hydrosplitters, flow splitter basins are adapted to higher flow rates and are more versatile for field adjustments and maintenance. A siphon discharging to a flow splitter basin that feeds several tanks with alternating dosing siphons is a method that can be used to avoid multiple sequencing siphons for large disposal fields. Effluent pumps may be used effectively in conjunction with dosing siphons. For example, a disposal field requires a high flow rate to pressurize it, but it's at a higher elevation than the dose tank. Instead of a large horsepower pump in the dose chamber, a small, easy to maintain effluent pump might be used to transport effluent to a second higher -elevation dosing tank containing a high flow -rate siphon. Pump/siphon combinations are also useful for disposal fields that are far from the collection point. A small effluent pump can be used to pump the effluent in a small diameter PVC line to a tank with a dosing siphon. This eliminates the need for large diameter transport lines capable of handling the dosing flow rate. Siphon System Design To gravity drainfields (without Hydrosplitters), the flow rate is usually not critical. Therefore, the following discussion refers mainly to pressurized systems. The details involved in achieving ideal transport line conditions, however, are applicable for all siphon and pump systems. Accurate information on the topography of the site is essential for laying out a siphon system. The transport line length and profile are critical in determining how or if the system will operate. It is important to allow open channel flow along the length of the transport line so that the air that is displaced can vent to an air vent located at the start of the transport line. If open channel flow cannot be maintained, additional air venting will be necessary. Manning's equation can be used to determine if the slope is steep enough to maintain open channel flow. The designer must, however, be aware of the limitations of theoretical calculations. The ideal transport line is one pipe diameter size larger than the siphon and is as short as possible with a constant slope from the outlet of the siphon to the disposal field (Figure 10). Unfortunately, many sites fall short of ideal. Long transport lines with changes in slope are often unavoidable. Nevertheless, steps can be taken to head off potential problems. The most common problem in transport lines is air binding caused by significant changes in slope (Figure 11). In the example shown in Figure 11, the problem is that the initial slope out of the siphon is less than the friction head loss of the pipe flowing full. Thus, the pipe may be flowing full at the change to a steeper slope and the air in the lower portion of transport line cannot exit the air vent near the tank. NTP-OSI-ESB-2 8/96 Page 10 Figure 10: Transport line with constant slope Figure 11: Transport line with significant change in slope Additionally, the flow just out of the siphon is unsteady and turbulent, which could cause additional air binding problems. An air release device positioned just below the change in slope normally will remove air accumulations. The single easiest way to avoid air binding problems is to use a transport line one size larger than the siphon itself. Note: for large siphons same size may be ok. Even on a very steep slope, using a transport line the same diameter as the siphon is not advisable, since turbulent, unsteady flow may be encountered. Air binding also occurs when a transport line has a "belly", i.e., a section of pipe that is always full of liquid. Some type of venting is necessary following a "belly." In a transport line where a long section of the bottom of the transport line is flat, a belly may be inevitable. To avoid having to fill this section of pipe each cycle, the system designer may purposely make this section of pipe lower than the discharge point. However, this situation should be avoided whenever possible. The first step in specifying a siphon for a pressurized system is to verify that the elevation difference, or fall, is adequate to provide the desired pressure at the disposal location. Second, the flow rate required by the distribution network or splitter is determined. In general, the siphon selected should have an average discharge rate higher than the flow rate necessary to pressurize the system. Next, the transport line size is selected, generally one pipe size larger than the siphon size. Depending on the length and slope of the transport line, siphons of six inch diameter and larger may not need a larger transport line size. Again, Manning's equation may be used to help in this determination. The transport line volume and any distribution network volume that is necessary to provide the desired pressure is then calculated. This piping volume is important in determining the dose volume needed to achieve the desired system pressurization. It is possible, using calculus, to roughly approximate the minimum dose volume required to reach the system design pressure. Using generalizations or "rules of thumb" for the required NTP-OSI-ESB-2 8/98 Page 11 dose volume is not good practice. Calculations should be performed for each system. A method for performing these calculations is presented in a separate paper. Finally, using the dose volume and the dimensions of the siphon chamber, the drawdown depth is calculated. Venting There are three common methods of venting siphon systems. An open standpipe is the most frequently used. Air release valves —with carbon filters for odor control —can be installed on transport lines where an open standpipe is not acceptable. A transport line that has trapped air may also be vented back to itself at a higher position. Most siphons are manufactured with an integral air vent, for venting the air trapped beneath the bell. A vent should always be installed just outside the siphon chamber, usually where the pipe size is increased. When a system is installed, the transport line should not be buried until proper operation has been verified. Access to the pipe is essential if additional venting becomes necessary. If low flow rates suggest that air entrapment is occurring, a portable drill with a 1/8th inch bit is useful for finding the locations of the air pockets. If a hole is drilled and air is not released, the hole is easily plugged with a stainless steel tapping screw. Monitoring Devices Monitoring of a single siphon is usually done with a float switch connected to a battery operated digital counter. The float, installed in the dosing chamber, is positioned to activate near the on level of the siphon. If the siphon fails to cycle (trickles), the liquid level in the tank will not reach the on position and no cycles will be recorded. Alternating siphons can be monitored using the same counter described above, with the addition of another counter in one of the drainfields. The float for the drainfleld counter is contained in a small canister that is connected to a drainfield lateral. When the drainfleld is dosed, the canister fills with liquid, raising the float and activating the counter. In a properly operating alternating system, the dose counter in the tank records twice as many doses as the counter at the drainfleld. Siphon monitors are a quick, easy method of checking siphon performance and are recommended for all siphon systems. High water alarms are not useful since siphon failure does not result in a high water condition. Maintenance Maintenance of siphons is limited mainly to checking for proper operation. Dose counters are recommended on all siphons for this purpose. Counters should be checked monthly and a written record kept. Siphons that lapse into a trickling mode can usually be put back into operation by blowing air under the bell or by lowering the liquid level in the tank below the bottom of the bell. Two inch vault - mounted siphons need only be lifted enough to expose the bottom of the bell. Note that as the siphon chamber is filling, liquid is forced out of the siphon trap into the discharge pipe. This flow should not be confused with trickling mode. If filters or screens are installed, they should be inspected periodically and cleaned as necessary. NTP-OSI-ESB-2 8/96 Page 12 Digital Dose Counter Applications General Orenco Digital Dose Counters are used to monitor the reliability of Orenco's Digital Dose Counter is composed of a battery powered digi- siphons. The advancing of the counter assures that the siphon is dosing. tal counter in a clear, rain -tight electrical enclosure. The counter regis- ters one count for every siphon dose by monitoring the tank level. The watertight enclosure can be installed either indoors or outdoors. An MF1A Float Switch with adjustable PVC float collar should be ordered separately. Digital Counter Display Raintight Clear Enclosure Side view of dosing siphon with digital dose counter. Standard Models AMDDC Materials of Construction: Battery: Lithium; has a 7-year expected life 3/4" Conduit Fitting: PVC Counter: Red Lion® CUB7 digital counter with LCD display. Operating voltage: 3V Display height: 0.35" Electrical Enclosure: Clear cover, watertight; measures 5" x 3" x 3". NEMA 4X rated Float Collar: PVC Float Switch: UL listed and CSA certified'. See the Float Switches submittal data sheet for more information Orenco Systems® Inc. , 814 Airway Ave., Sutherlin, OR 97479 USA • 800-348-9843 • 541-459-4449 • www.orenco.com NTD-SI-AM-1 Rev. 2.0, © 03/17 Page 1 of 1 1 33'-8 1 /4" 2 134 1 /4" K 38'-5 1 /2" 4 F 1 y A4.1 179'-10" 42'-11 " w z_ J 9 27'-6" i 23'-11 " PHASE ONE: CTCCI 7 REFERENCE PLAN NOTES • REFERENCE PLANS ARE FOR OVERALL LAYOUT AND SCOPE ONLY. • REFER TO SHEETS A2.3, A2.4, A2.5, A2.6, A2.7 AND A2.8 FOR ALL NOTES, DIMENSIONS, SYMBOLS AND APPLICABLE ES. N 0 N N O O C CD A5.2 D N � 2 W A4.1 D.6 M O lf') O E N N 0 M F F.2 1-0 rowland + broughton architecture and urban design 117 s. monarch st. 3377 blake st, 106 aspen, co 81611 denver,co 80205 970.544.9006 v 303.308.1373 v 970.544.3473 f 303.308.1375 f Consultants Issue: 11.11.2010 DEMOLITION PERMIT 11.15.2010 HOA SUBMISSION 11.19.2010 PERMIT / CONSTRUCTION DOCUMENTS 02.14.2011 CHANGE ORDER 03.01.2011 PHASE ONE - CORE & SHELL 03.07.2011 PHASE TWO - CORE & SHELL 03.28.2011 PHASE THREE - CORE & SHELL WESTCLIFFE 1025 STAR MESA DRIVE ASPEN, CO 81611 PROJECT NO: 21020 DWG FILE: 21020_A2-0.dwg SHEET TITLE LOWER LEVEL REFERENCE PLAN SCALE: 1 /8" = 1'-0" A2.0 COPYRIGHT 2011 ROWLAND-BROUGHTON ARCHITECTURE AND URBAN DESIGN THE INFORMATION AND DESIGN INTENT CONTAINED ON THIS DOCUMENT IS THE PROPERTY OF ROWLAND+BROUGHTON ARCHITECTURE AND URBAN DESIGN. NO PART OF THIS INFORMATION MAY BE USED WITHOUT THE PRIOR WRITTEN PERMISSION OF ROWLAND+BROUGHTON ARCHITECTURE AND URBAN DESIGN. ROWLAND+BROUGHTON ARCHITECTURE AND URBAN DESIGN SHALL RETAIN ALL COMMON LAW STATUTORY AND OTHER RESERVED RIGHTS, INCLUDING COPYRIGHT THERETO. n C F F.2 H A5.3 O eM 1 33'-8 1 /4" 2 O 23'-11 " 7 7 O 0 (V N U O C 9 c A5.2 D N � 2 C? A4.1 60 D.6 cM O Lf') rowland + broughton architecture and urban design 117 s. monarch st. 3377 blake st, 106 aspen, co 81611 denver,co 80205 970.544.9006 v 303.308.1373 v 970.544.3473 f 303.308.1375 f Consultants Issue: 11.11.2010 DEMOLITION PERMIT 11.15.2010 HOA SUBMISSION 11.19.2010 PERMIT / CONSTRUCTION DOCUMENTS 02.14.2011 CHANGE ORDER 03.01.2011 PHASE ONE - CORE & SHELL 03.07.2011 PHASE TWO - CORE & SHELL 03.28.2011 PHASE THREE - CORE & SHELL WESTCLIFFE 1025 STAR MESA DRIVE ASPEN, CO 81611 PROJECT NO: 21020 DWG FILE: 21020_A2-1.dwg SHEET TITLE MAIN LEVEL REFERENCE PLAN SCALE: 1 /8" = 1'-0" A2,1 COPYRIGHT 2011 ROWLAND+BROUGHTON ARCHITECTURE AND URBAN DESIGN THE INFORMATION AND DESIGN INTENT CONTAINED ON THIS DOCUMENT IS THE PROPERTY OF ROWLAND+BROUGHTON ARCHITECTURE AND URBAN DESIGN. NO PART OF THIS INFORMATION MAY BE USED WITHOUT THE PRIOR WRITTEN PERMISSION OF ROWLAND+BROUGHTON ARCHITECTURE AND URBAN DESIGN. ROWLAND+BROUGHTON ARCHITECTURE AND URBAN DESIGN SHALL RETAIN ALL COMMON LAW STATUTORY AND OTHER RESERVED RIGHTS, INCLUDING COPYRIGHT THERETO. VAULTRAIN CHAINFROM ABOVEDOWNSPOUTGLASSGUARDRAIL @3'-0" AFF TYP.PAVERS ON GRADE -RE: LANDSCAPEMECH. CHASEMECH. CHASE -MIN. SIZE - VIFTV IN NICHEFLUSHDECKINGABOVEAUTOMATICPOOL COVERLINEAR DRAIN FLUSHWITH PAVINGT. O. FINISH100'-5"T. O. PAVERS100'-4 1/2"SHEAR WALL -RE: STRUCT.STEP DOWNTO LAWN1/8":12"1/8":12"1/8":12"LINEAR DRAINFLUSH WITHPAVING1/8":12"T. O. PAVERS100'-4 1/2"T1T1PA1PA1PA2PA2PA1PA1 GENERAL NOTES1.REFER TO DOOR AND WINDOW SCHEDULES ON A8.X SERIES FOR UNIT SIZESAND SPECIFICATIONS.2.PROVIDE BLOCKING AT ALL BATH ACCESSORIES, HOOKS, ART WALLS, TVs,MIRRORS ETC.3.DIMENSIONS ARE TO FACE OF FRAMING OR CENTERLINE OF OPENINGS,U.N.O.. DIMENSIONS MARKED "CLR" OR "CLEAR" ARE TO FACE OF FINISH.4.FURNITURE SHOWN FOR SCALE AND REFERENCE ONLY.5.INTERIOR FRAMING IS 2X6 NOMINAL U.N.O.6.ALL APPLIANCES TO BE COORDINATED WITH MILLWORK PACKAGE. VERIFYREQUIREMENTS OF APPLIANCES PRIOR TO FABRICATION7.INTERIOR PARTITIONS ARE TYPE W4/A7.1 U.NO.. RE: STRUCTURAL FORSHEAR WALL LOCATIONS.8.REFER TO POOL DESIGN DOCUMENTATION FOR ALL POOL LAYOUT,EQUIPMENT, AND SPECS. PROPERLY BOND CONDUCTIVE ITEMS PER NECCODE.9.REFER TO LANDSCAPE ARCHITECT AND CIVIL FOR ALL SITE CONSTRUCTIONAND LANDSCAPE SCOPE.10.PROVIDE ROUGH-IN FOR SUB-SLAB RADON SYSTEM AND CONNECT TO FAN IFREQUIRED.T. O. COPING100'-4 1/2"T. O. COPING100'-4 1/2"6'-7 3/4"15'-4 1/4"3'-1 1/4"18'-10 3/4"PREFAB HOT TUB - 64 SFWATER AREA MAX (55 SFACTUAL):SUNDANCE SPAS -OPTIMA 880 - 89"X89"8'-0"8'-0"7 1/4"3'-5"3'-7 1/2"8'-11 1/2"3'-1 3/4"2'-4 3/4"2'-6" 2 3/4"BENCHBENCHHOOKS HOOKS5 1/2"3'-7 3/4"4'-10 3/4"8"5'-0"4'-5 1/2"2A7.31A7.3PA1 PA1STEP DOWNTO SITE WALKHOT TUB SET ONCONCRETE PAD1/8":12"1/8":12"LANDSCAPE BELOW -LESS THAN 30" STEPDOWN TO GRADEPAVERS ON GRADE -RE: LANDSCAPE1/8":12"FLUSH SKIMMER COVER -RE: POOL DESIGNFLUSH SKIMMER COVER -RE: POOL DESIGNFLUSH SKIMMER COVER -RE: POOL DESIGNFREESTANDINGGRILL ON CART -PROVIDE PROPANEHOOKUPGLASSGUARDRAIL @3'-0" AFF TYP.5'-10 3/4"6'-7 3/4" 8" 8"ROOFOVERHANG2A7.22A7.22A7.22A7.21A7.27A7.2T. O. PAVERS100'-4 1/2"1'-5" 9 1/4"7 1/4"5 1/2"File Path: P:\Proj-2018\21831.00_Westcliffe - Phase 2\06_Documentation\01_Drawings\21831_A2-1.dwgPlot Date/Time: February 04, 2019 - 3:51 pm COPYRIGHT 2019 ROWLAND+BROUGHTON ARCHITECTURE AND URBAN DESIGNTHE INFORMATION AND DESIGN INTENT CONTAINED ON THIS DOCUMENT ISTHE PROPERTY OF ROWLAND+BROUGHTON ARCHITECTURE AND URBANDESIGN. NO PART OF THIS INFORMATION MAY BE USED WITHOUT THE PRIORWRITTEN PERMISSION OF ROWLAND+BROUGHTON ARCHITECTURE AND URBANDESIGN. ROWLAND+BROUGHTON ARCHITECTURE AND URBAN DESIGN SHALLRETAIN ALL COMMON LAW STATUTORY AND OTHER RESERVED RIGHTS,INCLUDING COPYRIGHT THERETO.ConsultantsIssue:SHEET TITLEPROJECT NO:DWG FILE:1830 blake st, ste 200denver, co 80202303.308.1373 o303.308.1375 f234 e hopkins aveaspen, co 81611970.544.9006 o970.544.3473 frowland+broughtonarchitecture / urban design / interior designSCALE:21831_A2-1.dwgWESTCLIFFEPHASE 2POOL PAVILION1025 STAR MESA DRIVEASPEN, CO 8161121831.02018.09.28PROGRESS2018.10.25INTERIM PRICING2018.11.19PRICING2018.12.14PROGRESS2019.01.04CONSULTANT COORDINATION2019.02.05CONSTRUCTIONA2.1AS NOTEDPROPOSEDLEVEL ONEFLOOR PLAN Invoice Date 1/12/2019 Invoice # 8022 Bill To HD Aspen PO BOx 4782 Aspen CO 81612 Terms net 20 Due Date 2/1/2019 Total Balance Due Payments/Credits ALL VALLEY RESOURCE 239 Arapahoe Carbondale, CO 81623 Brian: 970-309-2425 / Forrest: 970-355-9447 "THE FAT MAN" WWW.ALLVALLEYRESOURCE.COM Description Qty Rate Amount 1025 Star Mesa 12-12-18 Septic Tank Pump and Inspection 2,000 0.51 1,020.00 $1,020.00 $1,020.00 $0.00 N79°36'30"E286.81IVBIVBWVWIVBEEWIVBIVBIVBIVBIVBIVBIVBGVDYHWVWSSSSSSSSSSSSTTECOECOCOCOCOCOCOECOCOEEWVWVWVIVBIVBIVBWWIVBWWWWIVBWEIVBWEWWWIVBEIVBWWIVBWIVBIVBIVBIVBSSEECO123546789101113141517161827242021222319383926252829303135343332123637LOT 19LOT 19LOT 19LOT 19LOT 19LOT 19LOT 19LOT 19LOT 19LOT 19LOT 19LOT 19K-T948-4StillnessFaucetsBrass K-T948-4StillnessFaucetsBrass K-T948-4StillnessFaucetsBrass K-T948-4StillnessFaucetsBrass K-T948-4StillnessFaucetsBrass K-T948-4StillnessFaucetsBrass K-T948-4StillnessFaucetsBrass K-T948-4StillnessFaucetsBrass DATADATA JEC_BOX W O O D _ L C 30" REF.DW STOR. JEC_BOXW O O D _L C JEC_BOXWOOD_LCJEC_BOXWOOD_LC JEC_BOXWOOD_LC JEC_B OX WO O D _ LC HB JEC_BOXWOOD_LCJEC_BOXWOOD_LC JEC_B O X W O O D_LC JEC_B OX WO OD _ LC DNEC.U. DSOSCOEXIST. ELECTRICMANHOLE30'-0"15'-0"EXIST. ASPHALT DRIVEWAYEXIST. WELL10'-0"SHEDEXIST.PARKINGELECTRICMANHOLEGSCALE:PROPOSEDSITE PLAN 1" = 60'-0"1A1.1CHMOUNT SOPRISMOUNT DALYASPEN MOUNTAINHIGHLAND P E A K LPG GASEXIST.MAINRESIDENCELAWNGRAVEL SERVICE ROADEXIST.LEACHFIELDPROPERTY LINEBUILDING ENVELOPEBUILDING ENVELOPEBK.523 P.822BUILDING ENVELOPEPROPERTY LINE PROPERTY LINEPROPERTY LINEPROPERTY LINEEXIST. AUTOCOURTRIGHT-OF-WAY EASEMENTIRRIGATION AND DRAINAGE EASEMENTPOOL PAVILIONCRAWL ACCESSBELOWEXISTING BARNTRANSFORMER / ELEC.NORTHEXIST. DRIVEWAYFOUND NO.5 REBARFOUND 2" ALUMINUMCAPPED REBAR, STAMPED 542' WITNESSCORNER, LS20133FOUND 2" ALUMINUMCAP, 725' WITNESSCORNER, LS20133EXIST. PONDEXIST. PONDEXIST. WATER TANKEXIST.DETENTIONPONDEXIST.GRAVELEXIST.GRAVELEXIST.GRAVELEXIST. TRAILEXIST. TRAILEXIST. SPILLWAYEXIST.ASPHALT DRIVEEXIST. GRAVELEXIST. SHED1025 STAR MESA DRIVEOWNER: GRE II HOLDINGS LLCP.I.264323300002APPROXIMATE LOCATION OF 10' HOLYCROSS EASEMENT BK.498 PG 58130' IRRIGATION AND DRAINAGEEASEMENT BK 523 PG 84315' UTILITY EASEMENTBK 523 PG 83910' UNDERGROUND RIGHT-OF-WAYEASEMENT REC. NO. 45125615' IRRIGATION AND DRAINAGEEASEMENT BK 523 PG 84540' ROAD EASEMENTBK 523 PG 833S22°08'57"W 587.19 EAST LINE LOT 19 (1891)CORRECT WITNESS DIMENSION: 505.38'1,606,999 Sq. Feet36.89 Acres±S 89°15'14" E 1336.98'831.60'34.52'875 STAR MESA DRIVEP.I. 264322400010BOOK 582 PAGE 553±1,594,305 S.F.± 36.60 ACRES WOODY CREEK ROADFLYING DOG RANCHPARCEL 4P.I. 26432330000729,616 S.F. ±0.68 ACRES ±N 00°49'21" E 1142.56'N 88°42'14" W 1378.42'(N 89°57'22" W 1377.20')S 01°13'43" E8.45'N 90°00'00" W38.08'S 46°01'57" E 284.24'N 89°09'03" E37.51'(S 02°13' E)S 01°13'43" E 825.71' 29,616 S.F.S76°12'13"E910.02S15°48'24"E661.44N12°03'25 " W 863.33 S81°45'49"W289.611200 KESSLER DRIVEP.I. 2643262030011175 STAR MESA DRIVEP.I. 264323300001BOOK 594 PAGE 77TRUE POINT OF BEGINNINGBUILDING ENVELOPE8120 8125 8130 8135 8140 8145 8150 8150 8150 8155 8160 8145 8150 81558150 8155 ACTIVITY ENVELOPEBK.97 P.9750'-0"ACTIVITY ENVELOPEBK.97 P.9750'-0" 1 0 ' - 0 "252'-0"ACTIVITY ENVELOPEBK.97 P.97 369'-0"S 2 3 ° 3 4 ' 5 2 " W 65. 3 4 ' S 06°12'40" E 58.85'N 59°06'55" W 89.77'N 70°18'02" W 108.81'S 01°22'47" E 89.86'EXIST. TRAILEXIST. FENCEEXIST. FENCEEXIST. FENCEEXIST. FENCEEXIST. FENCE EXIST. FENCEEXIST. FENCEEXIST. FENCE8157.5' DECKELEVATIONPOOLFile Path: P:\Proj-2018\21831.00_Westcliffe - Phase 2\06_Documentation\01_Drawings\21831_A1-1.dwgPlot Date/Time: February 04, 2019 - 4:45 pm COPYRIGHT 2019 ROWLAND+BROUGHTON ARCHITECTURE AND URBAN DESIGNTHE INFORMATION AND DESIGN INTENT CONTAINED ON THIS DOCUMENT ISTHE PROPERTY OF ROWLAND+BROUGHTON ARCHITECTURE AND URBANDESIGN. NO PART OF THIS INFORMATION MAY BE USED WITHOUT THE PRIORWRITTEN PERMISSION OF ROWLAND+BROUGHTON ARCHITECTURE AND URBANDESIGN. ROWLAND+BROUGHTON ARCHITECTURE AND URBAN DESIGN SHALLRETAIN ALL COMMON LAW STATUTORY AND OTHER RESERVED RIGHTS,INCLUDING COPYRIGHT THERETO.ConsultantsIssue:SHEET TITLEPROJECT NO:DWG FILE:1830 blake st, ste 200denver, co 80202303.308.1373 o303.308.1375 f234 e hopkins aveaspen, co 81611970.544.9006 o970.544.3473 frowland+broughtonarchitecture / urban design / interior designSCALE:21831_A1-1.dwgWESTCLIFFEPHASE 2POOL PAVILION1025 STAR MESA DRIVEASPEN, CO 8161121831.02018.09.28PROGRESS2018.10.25INTERIM PRICING2018.11.19PRICING2018.12.14PROGRESS2019.01.04CONSULTANT COORDINATION2019.02.05CONSTRUCTIONA1.11" = 60'-0"PROPOSEDOVERALLSITE PLAN EXISTING LEACH FIELD CONTRACTOR TO VERIFY LOCATION - OF EXISTING SEPTIC SYSTEM I TIE PROPOSED POOL PAVALION SANITARY SEWER PIPE W/ 45° WYE TO EXISTING SEPTIC SYSTEM PRIOR TO ENTERING SEPTIC TANKS APPROXIMATE LOCATION OF EXISTING SDR-35 SANITARY SEWER PIPE. CONTRACTOR TO VERIFY. 1 277 LF OF R-35 PIPE AT 2% MINIMUM SLOPE 1 � PROPOSED SANITARY SEWER CLEANOUT \ 1 \ �J n � 0 1 EXISTING SEWER MANHOLE (TYP.) 1 ® 1 1 ® 1APPROXIMATE 5s LOCATION OF SS EXISTING SEPTIC \ TANKS �� SS PROPOSED SANITARY - SEWER CLEANOUT 4" SCHED. 40 PVC PIPE OR EQUIVALENT AT 2% MIN. SLOPE PIPE EXITS BUILDING FROM FLOOR �s SINK PER PLUMBING DESIGNER I w � I 00 I I I SEE DETAIL BELOW FOR UTILITY CONTINUATION \ U, 1 \ 00 \ \ I0 1 I st, I I 1 I \ I � I \ \ PROPOSED LINEAR DRAIN \ S—AG 38 SERIES INFINITY DRAIN W/ STAINLESS STEEL GRATE COVERED WITH FILTER FABRIC & \WASHED ROCK PER ARCHITECT BOULDER WALL `4' MAX HEIGHT iasLo \ $�✓ U0 � � �s 00 `n � ems- ' I o0 _0sCo � I I O d � INSTALL PROPOSED GAS SERVICE W/ 30" MIN. COVER TIE PROPOSED POOL PAVILION GAS SERVICE TO EXISTING UNDERGROUND PROPANE TANK e STING FIRE WATER STORAGE TANK BOULDER WALL 4' MAX HEIGHT GRAPHIC SCALE 20 0 10 20 40 (IN FEET) 1 inch = 20 ft. 80 GRAPHIC SCALE 10 0 5 10 20 40 (IN FEET) 1 inch = 10 ft. LEGEND EXISTING PROPOSED CO SANITARY CLEAN —OUT OSANITARY MANHOLE GAS VALVE go TELEPHONE PEDESTAL FillELECTRICAL TRANSFORMER BOUNDARY RIGHT—OF—WAY = ADJOINER EASEMENT — SETBACK — TREE TREE SCL SEDIMENT CONTROL LOG M I/�I WATER VALVE ECB EROSION CONTROL BLANKET CD CHECK DAM O WATER MANHOLE IP INLET PROTECTION O WELL CIP CULVERT INLET PROTECTION FIRE HYDRANT OP OUTLET PROTECTION VTC VEHICLE TRACKING CONTROL CW CONCRETE WASHOUT AREA X57.00 SPOT ELEVATION —10.0% SURFACE SLOPE ISPOT ELEVATION ABBREVIATIONS. ASPHALT FL: FLOWLINE FG: FINISHED GRADE EG: EXISTING GRADE BW: BOTTOM OF WALL GRAVEL TW TOP OF WALL FOUNDATION CONCRETE PATH RETAINING WALL ROOF POOL/HOT TUB FENCE FLOWLI N E WATER SANITARY SEWER ELECTRIC CATV TELEPHONE GAS MAJOR CONTOUR MINOR CONTOUR SEDIMENT CONTROL FENCE UE cncrr — —8149 TOS:TOP OF SLAB a a. • a ' O � O E T 111 8155 8154 SCF GENERAL NOTES 1. SURVEY COMPLETED BY HIGH COUNTRY ENGINEERING, INC. (PROJECT NO: 2181038.00). REFER TO EXISTING CONDITIONS SURVEY FOR EXISTING SITE CONDITIONS, NOTES AND LEGEND. 2. ALL ITEMS SHOWN ON THE PLANS AS EXISTING ARE SHOWN IN APPROXIMATE LOCATIONS ONLY. ACTUAL LOCATIONS MAY VARY FROM THE PLANS, ESPECIALLY IN THE CASE OF UNDERGROUND UTILITIES. ANY DISCREPANCY IN LOCATION OR FIELD CONDITIONS SHALL BE BROUGHT TO THE ENGINEER'S ATTENTION IMMEDIATELY. 3. ALL WORK IN THE ROW AND/OR PUBLIC EASEMENTS SHALL BE IN ACCORDANCE WITH THE LATEST EDITION OF CDOT AND PITKIN COUNTY STANDARD SPECIFICATIONS. 4. HIGH COUNTRY ENGINEERING, INC. (HCE) SHALL BE HELD HARMLESS AND DOES NOT WARRANT ANY DEVIATIONS BY THE OWNER/CONTRACTOR FROM THE APPROVED CONSTRUCTION PLANS THAT MAY RESULT IN DISCIPLINARY ACTION BY ANY OR ALL REGULATORY AGENCIES. 5. THE DISTRICT ENGINEER AND OTHER APPROVING AGENCIES SHALL BE NOTIFIED AT LEAST 48 HOURS PRIOR TO CONSTRUCTION. 6. THE CONTRACTOR SHALL OBTAIN, AT THEIR EXPENSE, ALL PERMITS THAT ARE NECESSARY TO PERFORM THE PROPOSED WORK. 7. CONTRACTOR SHALL NOT SCALE DRAWINGS FOR CONSTRUCTION PURPOSES. ANY MISSING DIMENSIONS OR DISCREPANCIES IN THE PLANS, FIELD STAKING OR PHYSICAL FEATURES SHALL BE BROUGHT TO THE ATTENTION OF HIGH COUNTRY ENGINEERING, INC. AND THE OWNER. IF THE CONTRACTOR PROCEEDS WITHOUT NOTIFYING HCE AND THE OWNER, HE DOES SO AT HIS OWN RISK. GRADING AND EROSION CONTROL NOTES 1. INSTALL EROSION CONTROL MEASURES PRIOR TO ANY LAND DISTURBING ACTIVITIES. MODIFICATIONS TO SEDIMENT CONTROL DESIGN MAY BE CONDUCTED TO MEET UNFORSEEN FIELD CONDITIONS IF MODIFICATIONS CONFORM TO AND ARE APPROVED BY PITKIN COUNTY. 2. INSPECTIONS AND MAINTENANCE OF ALL EROSION CONTROL MEASURES SHALL BE ROUTINE (ONCE PER WEEK MINIMUM) TO ENSURE PROPER FUNCTION OF EROSION CONTROLS AT ALL TIMES. EROSION CONTROL MEASURES ARE TO BE IN WORKING ORDER AT THE END OF EACH WORK DAY. 3. INSPECT EROSION CONTROL MEASURES AFTER EACH 1/2—INCH OR GREATER RAINFALL. REPAIR ANY DAMAGE OBSERVED DURING INSPECTION. 4. ALL STRUCTURES, CONCRETE, TREES, BRUSH AND RUBBISH SHALL BE REMOVED AND ACCEPTABLY DISPOSED OF. 5. ALL ORGANIC MATTER SHALL BE REMOVED FROM FILL AREAS. 6. ALL FILL AREAS SHALL BE COMPACTED IN ACCORDANCE WITH THE GEOTECHNICAL ENGINEER'S RECOMMENDATIONS. 7. ALL SLOPES 4:1 OR GREATER SHALL BE STABILIZED WITH CLASS I, TYPE A EROSION MATTING. DRAINAGE SWALES SHALL BE STABILIZED WITH CLASS II, TYPE C EROSION MATTING WITHIN SEVEN DAYS OF REACHING FINAL GRADE AND/OR AS SOON AS CONDITIONS ALLOW. 8. EROSION CONTROL BALES OR SILT FENCE SHALL BE PLACED AT THE TOE AND DRAINAGE OUTFALL POINTS OF ALL SLOPES 4:1 OR STEEPER TO PREVENT SILTATION ON STREETS. REFER TO STORMWATER MANAGEMENT PLAN FOR DETAIL AND LOCATION OF EROSION CONTROL MEASURES. 9. CONTRACTOR SHALL COMPLY WITH ALL LOCAL, COUNTY AND STATE REGULATIONS PERTAINING TO GRADING, DUST AND EROSION. 10. NATURAL VEGETATION SHALL BE RETAINED AND PROTECTED WHEREVER POSSIBLE. EXPOSURE OF SOIL TO EROSION BY REMOVAL OR DISTURBANCE OF VEGETATION SHALL BE LIMITED TO THE AREA REQUIRED FOR IMMEDIATE CONSTRUCTION OPERATIONS AND FOR THE SHORTEST PRACTICAL PERIOD OF TIME. 11. ALL DISTURBED AREAS SHALL RE —SEEDED, MULCHED OR SODDED AS PER PITKIN COUNTY CRITERIA. 12. TOPSOIL SHALL BE STOCKPILED TO THE EXTENT PRACTICABLE ON THE SITE FOR USE ON AREAS TO BE REVEGETATED. ANY AND ALL STOCKPILES SHALL BE LOCATED AND PROTECTED FORM EROSIVE ELEMENTS, INCLUDING EROSION CONTROL AROUND THE PERIMETER OF SAID STOCKPILES. 13. AT ALL TIMES, THE PROPERTY SHALL BE MAINTAINED AND/OR WATERED TO PREVENT WIND —CAUSED EROSION. EARTHWORK OPERATIONS SHALL BE DISCONTINUED WHEN FUGITIVE DUST SIGNIFICANTLY IMPACTS ADJACENT PROPERTY. IF EARTHWORK IS COMPLETE OR DISCONTINUED AND DUST FROM THE SITE CONTINUES TO CREATE PROBLEMS, THE OWNER/DEVELOPER SHALL IMMEDIATELY INSTITUTE MITIGATIVE MEASURES AND SHALL CORRECT DAMAGE TO ADJACENT PROPERTIES. 14. ALL EXISTING UTILITY LINE LOCATION MUST BE VERIFIED BY THE CONTRACTOR PRIOR TO CONSTRUCTION. 15. ALL TRAFFIC CONTROL DEVICES SHALL COMPLY WITH THE LATEST VERSION OF THE "MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES" AND THE CONTRACTOR IS DIRECTED TO PAY PARTICULAR ATTENTION TO THE SECTION OF CONSTRUCTION ZONE TRAFFIC. :....... ... ... .......... # .......................... rowland+broughton architecture / urban design / interior design 234 a hopktnl8M blaka st, ste 200 aam�en, ao er 81611 denvco 80202 970.544.9006 0 0.308.1373 0 970.544.3473 f 303.308.1375 f Consultants Issue: 2019.01.30 PROGRESS 2019.02.04 BUILDING PERMIT O��P�c� I G GR�F2cr�0 rJ 476 WESTCLIFFE PHASE 2 POOL PAVILION 1025 STAR MESA DRIVE ASPEN, CO 81611 PROJECT NO: 21831.0 DWG FILE: GR-1.dwg SHEET TITLE PROPOSED GRADING DRAINAGE & EROSION CONTROL PLAN SCALE:1 " = 10" C1 0 0 COPYRIGHT 2019 ROWLAND-BROUGHTON ARCHITECTURE AND URBAN DESIGN a ,Nt _19 —s —. �a mm �is�► w oiit" � �R S t ao