HomeMy WebLinkAboutPROSPECT HEIGHTS BLK 2 LT 3 Municipality of Anchorage ° On -Site Water and Wastewater Program E (907) 343-7904 Certificate of On=Site Systems Approval Parcel I.D.015-133-22 Expiration Date: 1. GENERAL INFORMATION: Complete legal description Prospect Heights; Block 2, Lot 3 Location (site address) _10600 Prospect Drive *Anchorage, AK 99507 Current Property owner(s) Estate of Linda Lappi Day phone 907-244-2745 Mailing address Real Estate Agent 2. TYPE OF DWELLING: ® Single Family (w/wo ADU) ❑ Duplex ❑ Multiple Dwellings (Single Family and/or Duplex) Day phone 3. NUMBER OF BEDROOMS: 4 4. TYPE OF WATER SUPPLY: TYPE OF WASTEWATER DISPOSAL: Individual Well , 0 Individual Individual Water Storage ❑ Holding Tank ❑ Community Class_Well ❑ Community ❑ Public Water System ❑ Public Sewer ❑ WaiverNariance request for: Distance: Received by: Date: COSA to be released to the engineer, unless otherwise requested by the engineer. COSA Fee $ 550 Waiver Fee $ _ Date of Payment 3 Date of Payment Receipt Number ©71 Receipt Number COSA # 05C_ �?_ I 112- 6 Waiver # 5. STATEMENT OF INSPECTION BY ENGINEER As certified by my seal affixed hereto and as of the validation date shown below, I verify that my investigation, based on procedures outlined in the Certificate of On -Site Systems Approval Guidelines for this application, shows that the on-site water supply and/or wastewater disposal system is (are) safe, functional and adequate for the number of bedrooms and type of structure indicated herein. I further verify that based on the information obtained from the Municipality of Anchorage files and from my investigation and inspection, the on-site water supply and/or wastewater disposal system is(are) in compliance with all applicable Municipal and State codes, ordinances, and regulations in effect at the time of installation. Name of Firm: Garness Engineering Group, Ltd (GEG) Phone: 907-337-6179 Address: 3701 East Tudor Road, Suite 101- Anchorage, Alaska 99507 Engineer's Printed Name: Jeffrey A. Garness Date: 41 C/1 la( In conducting this evaluation, GEG provided an engineering evaluation of the well and/or septic system in accordance with the guidelines and regulations established by the Municipality of Anchorage and industry practices. The reported results describe the condition of the system/s on the date/s of the evaluation. Separation distances were measured to readily identifiable features. Hidden defects or encroachments may exist that were not identified during the evaluation. The operational life of all wells and septic systems depend upon a variety of variables, including but not limited to, soil conditions, groundwater levels (that may fluctuate during the year), quality of construction (materials and workmanship), and the water usage of the family utilizing the system/s. These conditions can vary, and/ are outside the control of GEG. Satisfactory test results do not guarantee future performance of the system/s; therefore, GEG makes no warranty (express or implied) regarding the future performance of the well or septic system. GEG makes no representation whether an alternative well or septic system can be installed on the property in the event either of the current systems fail to perform adequately in the future. The content of this report is for the sole benefit of the person/party that retained GEG to perform the evaluation. Reliance upon the information provided in this report by any other person or party (including subsequent property purchasers) is not authorized, nor will it confer any legal right whatsoever. 6. DS SIGNATURE L% System #1 Approved for bedrooms System #2 Approved for bedrooms Disapproved Conditional approval for bedrooms, UfrM NKWAIL\ - I ofI n,Gom ss., Q C 004�.��e ��.►. �t.I?1'. E�ejd p�o r e s sio�°oma #AECC884 \TY�OF 616 with the followit�gXtip1li111����}Q}N-$1TE G) Wne By: v�.,. �' Original Certificate Date: The Municipality of Anchorage Development Services Division (DSD) issues Certificates of On -Site Systems Approval (COSA) based only upon the representations given in paragraph 5 by an independent professional civil engineer registered in the State of Alaska. The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's work. 7. ATTACHMENTS: COSA Checklist Nitrate Advisory Septic System Advisory Arsenic Advisory Well Flow Advisory Other Legal Description: Prospect Heights; Block 2, Lot 3 If more than 1 septic system on lot: COSA Checklist # A. WELL DATA ❑ Well log is filed with Onsite (or attached) Date drilled 1974(?) Total depth *160+ ft Cased to UNK ft ❑ Sanitary seal is functioning correctly ❑ Wires are properly protected Casing height (above ground) 18+ in. Date of flow test for COSA 3/2/21 Static water level at beginning of test 46.1 ft Comments *PER GEG WELL TEST Parcel ID: 015-133-22 of Structure served by this system I -SEE ATTACHED PICTURES FROM ARCTIC EFFLUENT CAMERA INSPECTION I B. TANK DATA Age of tank(s) 47 years Tank type/material SEPTICICON, Measured operating fluid level in septic tank 8 ❑ Standpipes/foundation cleanout per record drawing Date of pumping 3-1-2021 D. ABSORPTION FIELD DATA CRIB Which system tested (date installed) 1974 ❑ ALL standpipes present per record drawing Well production at time of test 1.2+ gpm Water storage tank volume N/A gallons Well disinfected for coliform test? ❑ Yes IN No [Coliform bacteria is Negative Nitrate S. )-I mg/L ❑ Nitrate less than MRL (ND) Arsenic ug/L ® Arsenic less than MRL (ND) Collected by GEG Date of Sample 3/3/21 C. LIFT STATION ❑ Required maintenance completed Age of lift station year Lift station material A 0=1 Adequacy test date 3/2/21 Results ❑✓ Pass For 4 bedrooms Total measured depth from grade 9.6 ft (max) Fluid depth prior to test 0 in Measured depth to pipe invert from grade *LINK ft (min) Water added 613 gal ❑ N/A — pressurized field New depth 3 in ❑ Monitor tubes go to bottom of effective. If not, state Elapsed time 10 min depth into effective 'UNK p FOR Code -required soil cover over field Final fluid depth 0 in ❑ System presoaked Absorption rate 600+ gpd (Required if vacant for greater than 30 days prior to Any rejuvenation treatment (past 12 months) NO date of test) N/A Gallons introduced **2000 gallons If yes, enter date Comments/Deficiencies: 'THIS ISA LOG CRIB TYPE SYSTEM -SYSTEM PRESOAKED ON 311121 -NO FCO PRESENT • CLEANOUT IN CRAWLSPACE WILL SUFFICE PER ARCTRIC EFFLUENT COSA Checklist yellow sheet E. SEPARATION DISTANCES From Private Well on Lot to: (Please enter distances if less than required or if community well) Septic Tank/Lift Station on Lot > 100' ❑✓ Yes Community Sewer Manhole/Cleanout > 100' [7✓ Yes if No ft 71 Yes if No ft Neighboring Tank > 100' 0 Yes if No ft Private Sewer/Septic Line > 25' M Yes if No ft Absorption Field on Lot > 100' r7l Yes if No ft Holding Tank > 100' P/1 Yes if No ft Neighboring Absorption Fields > 100' 0 Yes if No ft Water Main > 10'✓n Animal Containment > 50' Yes if No ft Q Yes if No ft 0✓ Yes if No ft Water Service Line > 10' Yes if No Manure/Animal Excreta Storage > 100' If septic tank is under driveway Community Sewer Main > 75' ❑✓ Yes if No ft 0 Yes if No ft From Septic/Holding Tank on Lot to: (Please enter distances if less than required) Building Foundations > 10' ❑✓ Yes if No ft Surface Water > 100' Cj✓ Yes if No ft Property Line > 5' ✓V Yes if No ft Wells on Adjacent Lots: ❑✓ Absorption Field > 5' [✓ Yes if No ft Private Wells > 100' 0 Yes if No ft Water Main > 10'✓n ft Yes if No ft . Community Wells > 200' 0✓ Yes if No ft Water Service Line > 10' Yes if No ft If septic tank is under driveway comment below From Absorption Field on Lot to: (Please enter distances if less than required) Building Foundation > 10' F Yes if No ft if absorption field is under driveway comment below Property Line > 10' F71 Yes if No ft Wells on Adjacent Lots: Water Main > 10' ❑✓ Yes if No ft Private Wells > 100' Q Yes if No ft Water Service Line > 10' 0 Yes if No ft Community Wells > 200' Yes if No ft Surface Water > 100'✓❑ Yes if No ft F. ENGINEER'S COMMENTS STRUCTURAL INTEGRITY OF 1974 LOG CRIB IS UNKNOWN G. ENGINEER'S CERTIFICATION I certify that l have determined through field inspections and review of Municipal records that the above systems are in conformance with MOA COSA guidelines in effect on this date. COSA Checklist yellow sheet V. Vd, . r .J off -e' - • • . Garn;�ss: Q� Q � '•. CES -753 ••' � p 4Q4ed pro f es siond #AECC884 �DDOpoOd`� MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT 907-343-7904 AI On -Site water and wastewater Section Fax: 343-7997 www.muni.org/onsite Nitrate Advisory Certificate of On -Site Systems Approval # OSC OSC211126 Subdivision: Prospect Heights B 2 lot 3 A water sample revealed a nitrate concentration of 5.29 milligrams per liter (mg/Q. The Environmental Protection Agency (EPA) has established a maximum contaminant level (MCL) of 10.0 mg/L for public drinking water systems. While private wells are not subject to this regulation, EPA standards are based on existing health information and can therefore be used to gauge the relative quality of water from private wells. Please see the attached "Nitrate Fact Sheet" for important information regarding nitrate. This advisory must be attached to all copies of the subject Certificate of On -Site Systems Approval. Mafing Address P O� Box 196650 Anchorage, Alaska 99519 6650 *www muni org � �� Rim. INSIUM From Northern Testing Laboratories, Inc. Nitrate is a negatively charged compound of nitrogen and oxygen, which is very soluble in water. Nitrate is not readily filtered or otherwise removed in the soil and can pass rapidly into ground water wells. SOURCE: Nitrate is a major component of fertilizer and wastewater. Often the nitrate is in the form of ammonia or protein first, which through contact with oxygen and certain bacteria, converts to the oxidized form known as nitrate. Sources of nitrate from wastewater include urea, ammonia cleaners, food solids, and bacterial cells. It may also result from the breakdown of organic matter buried in the soil. TOXICITY: Nitrate is generally not toxic to adults or children over the age of two or three years but is associated with a potentially fatal infant disease called methemoglobinemia. In the digestive system of young children, nitrate converts to nitrite, which can pass through the intestinal wall into the blood stream. There it combines with the hemoglobin and interferes with the ability of the blood to carry oxygen. For this reason, methemoglobinemia is referred to as "blue baby" disease. The EPA limits the concentration of nitrate in public drinking water supplies to 10 mg/L. The standard has been lowered from a previous level of 45 mg/L set by the US Public Health Service and the World Health Organization. TREATMENT: due to its solubility in water and negative ionic charge, filtration and other common home water treatment systems such as softening, or iron filtration does not readily remove nitrate. The best method for limiting nitrate in well water is source control. This can include avoiding overdosing of fertilizer near the well and maintaining good separation distances between septic tank leach fields and the well. A special anion exchange filter that contains a media with a strong affinity for negatively charged ions in water, or by a reverse osmosis treatment system or distillation can remove nitrate. TESTING: Nitrate analysis is usually done by one of the several "wet chemical" methods using a spectrophotometer to read the final color endpoint. Specific ion electrodes also can be used to detect the activity of nitrate in water. This laboratory uses several different wet chemical methods approved under the public water supply laboratory certification program. They also have test kits available, which the laboratory uses to perform an inexpensive "screening test", and with which the homeowner can monitor the change in nitrate levels from their well. They recommend comparing the test kit results against a certified analysis from the lab occasionally to verify the accuracy of the kit. We recommend using a specially prepared bottle that has been rinsed in hydrochloric acid for collecting samples. Mailing Address P O Box 196650 * Anchorage, Alaska 99519 6650 *www muni org 1 � u ¥&: O\ / \\) 1�» 9 _/ ®\ &z \�� j / (»\ \\\ & %Q o // \\\/ �§ §®§\ / ID: °Gz» \( \/ ui ƒ\\mw \ ®�/ » » G }// I \\\ \ j \ \ tD ) LA \§ Oa 3$ 3»275' ? (3* aa(®3 �\ § "F- ' ' \ F- &~G 2g5{@3 ® §// \m�ee) / K2 &\/§\ ¥&: O\ / \\) 1�» 9 _/ ®\ \�� GRE/' -' ER ANCHORAGE AREA BOr ' UGH Department of Environmental Quality 3330 C Street Anchorage, Alaska 99503 INSPECTION REPORT ON-SITE SEWAGE DISPOSAL SYSTEM LEGAL DESCRIPTION /"~" 3 /ff{/~ ~-~ /~4~O~./'Jg<;'7~ /-/~' SEPTIC TANK: DISTANCE ^/-r ~-- ~ "m~ NUMBER OF FROM WEL~I~/~'"-/V MANUFACTURER C~,/¢~//¢Q2/~ MATERIAL ~'~/"'~Y~gP/¢~- COMPARTMENTS INSIDE LENGTH ~ INSIDE WIDTH ~ LIQUID DEPTH ~ .LIQUID CAPACITY /~-O GALLONS. SEEPAGE PIT: NUMBER OF PITS / DIAMETER OR WIDTH ~'? LENGTH ~/'/~ DEPTH "7 LINING MATERIAJ~)~ ~f~)~' J~ CRIB SIZE: DIAMETER~¢' DEPTH ,:) 2DISTANCE FROM: WELL_~ ~OT'¢ r~)' TOTAL EFFECTIVE ~/~7 BUILDING FOUNDATION ! NEAREST LOT LINE ABSORPTION AREA (WALL AREA) SQ. FT. ADDITIONAL ABSORPTION WELL: TYPE ~V~'7'' '~/~/' CONSTRUCTION DEPTH DISTANCE FROM: BUI LDI NG NEAREST~~~~~LT ~T SEPT lC SEEPAGE FOUNDATION_ LOT LINE SEWER SYSTEM CESSPOOL OTHER SOURCES -~ APPROVED DISAPPROVED REMARKS DISTANCES: ~' ~' DIAGRAM OF SYSTEM PIPE MATERIAL, LOT SLOPE: '~/---)/¢ /-'¢2~ ¢-< F REMARKS: DATE APPROVED ~r-~;...~ ~~ G.A~.A.B.~ ' ~.~, GreaTEr ANCHORAGE AREA Borough DEPARTMENT OF ENVIRONMENTAL QUA'LITY 3330 "C" STREET ANCHORAGE, ALASKA 99503 TELEPHONE 274-456! PERMIT NO. SEWAGE DISPOSAL SYSTEM -- APPLICATION AND PERMIT INSTALLATION OF: SEPTIC TANK ~ SEEPAGE--~I~IT ~ t~ DRAI~I'FIELD TYPE AND SIZE OF FACILITY TO BE SERVED FINANCED THROUGH TO BE INSTALLED BY ,, OTHER NOTE: THIS PERMIT IS NOT VALID WITHOUT SOIL TEST FINAL INSPECTION: 24 HOUR NOTICE REQUIRED. BACKFILLING OF ANY SYSTEM WITHOUT FINAL INSPECTION BY THE DEPARTMENT OF ENVIRONMENTAL QUALITY AUTHORITY WILL BE SUBJECT TO PROSECUTION. DIAGRAM OF SYSTEM MINIMUM DISTANCES, REQUIREMENTS FOUNDATION TO SEPTIC TANK FOUNDATION TO SEEPAGE PIT ~ . DRAIN~FIELD SEPTIC TANK TO SEEPAGE Pit WALL SEPTIC TANK SEePAGe PIT TO NEAREST LOT LINE. WELL TO SEPTIC TANK /(~ (~ f DRAIN FIELD WATer MAIN TO SEPTIC TANK DRAIN FIELD SEPT[ C TANK, ~A~l T TO RIVER. LAKE. STREAM. .. DRAIN FIELD seepage Pit /06 · SEEPAGE PIT · DRAIN FIELD CAST IRON INTO AND OUT OF SEPTIC TANK AND INTO CRIB CROSSING GAP Of EXCAVATION 5 FEET into UNDISTURBED SOIL. 4 INCH DIAMETER CAST IRON SIPHON PiPeS ON SEPTIO TANK AND SeEPAGe PIT FITTED WITH AIRTight REMOVABLe CAPS. GRAVEL BACKFILL CONFORM TO BOROUGH REGULATIONS REGARDING INSTALLATION. OR LICENSED DESIGNER I CERTIFY THAT I AM FAMILIAR WIth THE REQUIREMENTS OF GREATER ANCHORAGE AREA BOROUGH ORDINANCE NO. 28-68 AND THAT THE ABOVE "~l.~d~.~-i~]~ GRL,,,'ER ANCHORAGE ^RE^ BOROUGtt /. DEPARTMENT OF ENVIRONMFNTAL OUAI.'ITY J~N 61974 AM 3330 "C" Street ANCHORAGE, ALASKA 99503 /L-~'~,~AI I~K ANCHO~AO~ AREA Performed For BobOrell Case # Dated Performed June 4, 1974 Legal Description: Lot 3 Block 2 Subdivision Prospec[_Heights Percolation Test This Form Reports Soils Log X× Soil Test Must Be Logged To 4'. Below Proposed Seepage System - Depth Feet 4~ Soil Characteristics Peat, etc. Light brown sandy silt with occasional coarse gravel Coarse gravel, coarse sand SP-GM GW 10~ ll~ 12~ 13~ 14~ 16 Grey sandy silt with cobbies and coarse gravel ML Dark brown sandy silt CH-SM with clay Coarse gravel and cobbles GW ~as ¢round ~ater Encountered? No If Yes, At What Depth?____ e% Reading Date Gross Time Net Ti me Minute Depth to H20 Net Drop. Percolation Rate ' Proposed Installation: Seepage Pit XX Drain Field Depth o'f Inlet Depth to Bottom o-f-Pit or Trenc .h-~ COMMENTS: Based on Borough regulations, we recommend 168 sq. fi. per bedroom. Test Performed BY lohnJameson Date Certified BY: - - Date: