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Home My WebLink AboutPARADISE VALLEY BLK 9 LT 31AParadise Valley Block 9 Lot 31A #020-414-30 Municipality of Anchorage Development Services Department Building Safety Division On-Site Water and Wastewater Program, 4700 Elmore Road P.O. Box 196650 Anchorage, AK 99507 Page of www.ci.anchorage.ak.us (907) 343-7904 ON-SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT Permit Number: OSPl11093 PID Number: 020-414-30 Name: Daniel and Susan Uattson Wastewater System: [] New [] Upgrade Address: P.O. Box 112174 Anchorage, AK 99511 ABSORPTION FIELD Phone: 529-0303 Number of Bedrooms: 3 I-I Deep Trench I~1 Shallow Trench I-I Bed ~] Mound [] Other: LEGAL DESCRIPTION Soil Rating: .7 GPD/Ft2 Total Depth from 1.5-2°dginal grade:::~ Ft. Block: 9 Lot: 31A Subdivision: Depth to pipe bottom from odginal grade: Gravel depth beneath pipe: Paradise Valley +.2 Ft. .5 Ft. Township: Range: Section: Fill added above odginal grade: Gravel'Length: 2.2-2.5 Ft. 45 Ft. Gravel width; Number of lines: I Distance between lines: Well: New Upgrade 15 Ft. 3I 5 Ft. Classification (Private, A, B, C): Total Depth: Cased to: Total absorption area: Pipe Material: Private 346 Ft. 81 Ft. 675 Ft~ ASTM D3034 PVC Driller: Date Drilled: Static Water Level: Installer: Date Installed: Alpine Drilling 9/21/11 46 Ft. Red Dog ExCavating 7/12-13/2011 Yield: 4 GPMI Pump 335Set at: Ft. Casing Height Above2 Ground:Ft. TANK , SEPARATION DISTANCES [] Septic [] Holding [] S.T.E.P. [] Other: '~ To Septic Absorption Lift Holding >ublic/Pdvate Manufacturer: Capacity: From~ Tank Field Station Tank Sewer Line Anchorage Tank 1,250 Gal. Matedak Number of Compartments: we, >100' >100' >100' N/A >25' Steel Three (3) Surface water >100' >100' >100' N/A ~ / LIFT STATION Size: Manufacturer: Lot Line >5' >10' >5' N/A 250 Gal. Anchorage Tank/Orenco "Pump on" level at: "Pump off" level at: in. High water alarm at: Foundation >5' > 10' >5' N/A 42 in. 42 44 in. I Pump Make & Model Electrical Inspections performed by: Curtain DrainNone Noted 'esi P2005-11 Municipality of Anchorage Remarks: Revegetation to be Completed by July 15, 2012. BENCH MARK Ft, Inspections performed by: A. Harala Dates: 1st 7/12/2011 2nd 7/13/2011 Se '"ce--epartment~ s//D Approval DevelopFlent Conditional Approval/~.'~L~'~ k'~'wt'-z ~~ Date: /~h/! / Reviewed and approved by: Date: · i,i >o~ I,,. i<{ * d <{i ' o~ >hO LOI <{ <{ / / / ? / / / / / / 0 ~-0' o~ ?/ / / / / / / / / / / / / / / / / \ \ / / / / / I I I I I I I I I I Municipality of Anchorage page 3 of 3 DEVEOPMENT SERVICES DEPARTMENT 4700 Elmore Road Anchorage, AK. 99519-6655 - 343-7904 On-Site Wastewater Disposal System or Well Inspection Report Permit Number: OSP111093 PID No. 020-414-30 -- / r~6'6 · '//Existing ! Finished - Ground i 1,250 Gallon ; STEP Tank 114.9 114.6 ~"// Finished Grade 2" Insulation & g~ Geotextile Fabric fixistin~t Grade ~ ~--~fixistin 112.1~ 112'4~_~ _.~ 1~112.4 111.85 Drainfield Rock 111.65 Groundwater @ 106.7' ...7__ 5117/11 I 102.1 45' (Bed Length) 30 - 3/16" Diameter Holes @ 4.5' PROFILE AS-BUILT . · .o So~,e I I I ~ ~ I I ~ ~ ! ! ~o \ \ l I I l I I I I I I C OCo' Z .......... :~410; ....... .,.,, × o. 27.0' CARPORT From'Merit Homes 907 334 9234 12/01/2011 09:07 #586 P.003/003 Alpine Drilling & Enterprises Well Log Permit Number: #SWOSP111093 Date of Issue: 6-15-11 Parcel Identification Number: 02041430000 Date Started: 9-21-11 Date Completed: 9-23-11 Is well located at approved permit location? x Yes [] No Legal Description: Paradise Valley Block 9 Lot 31A Property Owner Name & Address: Merit Homes 1920 W. Dimond Blvd., .Suite F Anchorage, Alaska 99515-1471 Borehole Data: Depth (ft) Soil Type, Thickness & Water Strata From To Stick-up 0 2 Organics & silt 2 4 silt 4 7 gravelly silt 7 23 silty cobbly gravel 23 67 gravelly silt 67 79 bedrock 79 3~6 Method of Drilling x air rotary [] cable tool Casing type: steel Wall Thickness: .250 inches Diameter: 6 inches Depth: 81 feet Liner Type: ~ Diameter: ~ inches Depth: ~ feet Casing stickup above ground: 2 feet Static water level (from ground level): 46 feet Pumping level: 300 feet after 4 hours pumping 4 gpm Recovery Rate: _4 gpm Method of Testing: air l~ft Well Intake Opening Type: [] Open End x Open Hole [] Screened Start ~ feet Stopped [] Perforations Start ~ feet Stopped feet feet Grout Type: bentonite granules Depth: Start 0 feet Pump: Intake Depth ~ feet Pump size ~ hp Brand Name Volume: 1 bg Stopped ? feet Well Disinfected Upon Completion? x Yes [] No Method of Disinfection: Comments: Well Driller: Alpine Drilling & En~rpr~es POBox 110496 AnchorageAK99511 From:~erit Homes 907 334 9234 12/01/2011 09-06 #586 P.001/003 ..'.., ~'',. %...~.. Mark Begich Mayor 4700 Elmo~e ~oad P.O. Box 196650 Anchorage, AK 99507 Pump Installation Log , Top of Wen ~s~ ~ 5f f~t ~Pump Size ]- ~/~hp Pitless Adapter Bm-iai Dept~: ~feet Name & Address: Pifless Adapter Maaufacturer's Name: ~,L/K Pitless -Adapter lustaHer: ~%/K Well Disi~ected Upon Completion? [~, Yes [] 1~o Method ofDisi~ection: ~:.~.~O~cA.t,%0~.~ ( Of"~ Comments: !Pump Installer Name: b,U,z Li Attention: The pump installer shall provide a pump installation log to the DSD wiihi. 30 days of pump installatiom · · Fror~:~lerit Homes 907 334 9234 12/01/2011 10:24 #587 P.001/001 ~ ?~"~':.":,:' ~:.':. ?...? '..~.~ Communi~ .Development .D~pa.~m~nt .~;~'~Development S~'ices' .DNi's'i0'n ~ ~,.~ ?.~:~ ::/.'?; ..~"... ~;.~:.~~} J .~ [.i.;:.':':':.:":";: :,:'?:~:', ~.' '~.:~ ::??,'?~:'?,O. ~0;' ~96650..~.~chorage. 'A aska 99519,6650,'4~0o EJ~0re Road :: .'::: ~ ~"::" ::"? ":';.': '.:? :'.') ' .:' '~~~J: :.":'":,:';":: ::..'::','~ ::.:"~'.:;.'"; .:::;;', ?;:',':'.:':'~.':~ ;'.."; ':~.?~ ~... ;':'." '?:'.::':.. :'~"?;::'~';,? :.'::;':.~. ~].n~° and Help: ,::'~90D ~3~82! 1 ,:'::.~"~..' ~.~.,~ :;?:~".':: :' .."..:" :";' .)?.?.~:'~'~ ¢;~..';',":," :'~.:.: ". ."':' ~~,::;'~ ' ':'""""':' :':."~"'".':""":" ": :: ::" ~':~:" ':':"'?,'"'~'.INSPECTION :Voi~;' (967) 34~8300 ~ '907 '24~7777 "'''''~ "': ':"~ :"':'"'": .... " ::':::~.' ~ . ........ ~,' ."..'.'~..:'.,.'.',.:.'.::...,'..~..'..~..'..:~,..,:,.?.'..v,:.'...... .............. ~.' ..... :....: ..... .. .( ) . . .....~.~.. .... ~.~....: ..... . .... .. :,.. :~?:~f~. ~' ,, :,,.,...,'.,.:..,' ,.,. ~'.~ ~':.'~ :. ~,: ,, e :,'..:.:.:..',,'.~':.:..:.. ,,' :..:..., :: ..'~ .~..'~.:.: '~,,:.:.,..':.,..., :. ,,'.,.,., :........ :'~. ,, :..: :. ,. ,.....: :....:~:.:. :..~ .: :, ': ,,....:. ;..'.........:.....: ... ~........, ....... ? :....'...' .: .~ ..,:~ }~ ,.., ~..'.. ',. ~ ....' ?~ :~'Su'b~it'~f'ua;~e~'Pe~'~t':' R 1'i 2~ ~¢.':~:.";;'~;':::;,;t~. ??:';:..';.'?,:~: ~YPe;.'~E!b~'d.Cal. ?~..:::~,:?: ??Ne W~.":?? ?~.~.?;~:~:::.:~;:'::.? ::;:,.'~.;):.~.:~o~;.,pleas~ i,.~pe~[~,~,.;~:~:~.., :~T~.~.YR~,~qU.~t~d.,.~y.~, ?g,u~Y,,Ba~t ~.g7~6~..~.'~:~::,..¥.:,?':.:?.::.'~ ;?~SchedU.!e..D~te;09/28!2~ 1.1 :?::::.{ :'"'~':" ::' :"" :":" ":'"':~ '""' ~' "'"' ': "'" ............ ' .......... "" "'"': :"":'::'~ .~'. :~ ;.','.~.":'~.'.":::)~.~: '~ ??..":~' :'"'":": '~" :""~ ":'~ ": ~. :':.":'::"..'".'?,':.~ ~ ~.f.,~:. ?" :':~' "':: ~.~',;":;~ ;:;.;,::'.::':.:".i ns pecti°n' ~: ~t 49656. ~:? ~;":.':~.~ Address. ~f .P~pj~t:.~ :.:?~.5895, BM LGARIA ~DR, ','..;~'; ~:, ?.:,.'i. :. :r;'~ ?.::':,~.,.~.'..: :.:. :::::~::?~ :,;....::..'.~ :~':, ..:.,:.",.':~ ~ ::~;?.: :'. :.:.'..,. ':. '.~: ..:.~.. :~..'~.':..= :. parcel: ..' ~.': ::.:.02041430000 SGS Ref.# 1115224001 Client Name Anderson Engineering Printed Date/Time 10/28/2011 16:00 Project Name/# Lot 3lA Paradise Valley Collected Date/Time 10/21/2011 15:45 Client Sample ID Lot 31A Paradise Valley Received Date/Time 10/21/2011 16:25 Matrix Drinking Water Technical Director Stel~hen C. Ede PWSID 0 Saml~le Remarks: Allowable Prep Analysis Parameter Results LOQ Units Method Container 1D Limits Date Date Init Metals by ICP/MS Arsenic ND 5.00 ug/L EP200.8 C (<10) 10/24/11 10/27/11 NRB Waters Department Total Nitrate/Nitrite-N 4.19 0.100 mg/L SM20 4500NO3-F B (<10) 10/27/11 AYC Microbiolog~ Laborator~ E. Coli Negative 1 100mL SM20 9223B A 10/21/11 DLC Total Coliform Negative 1 100mL SM20 9223B A 10/21/11 DLC ENCROACHMENT PERMIT 1103-11C Grid 3538 EN11050 020-414-50 This permit is between Chugach Electric Association, Inc., an Alaska non-profit electric cooperative, (herein"Chugach"), whose address is P. O. Box 196300, Anchorage, Alaska 99519 and Merit Homes, LLC, (herein "Permittee'), whose address is 1920 W. Dimond Boulevard, Suite F, Anchorage, Alaska 99515. 1. Easement. Chugach is the grantee or user of an easement for the construction and maintenance of electrical facilities, as follows: Described in that certain written instrument recorded on the 18th day of March 2011, at Serial No. 2011-013334-0, on file in the office of the District 'Recorder, Anchorage Recording District, Seward Meridian, Alaska, Described in that certain written instmmem recorded on the 22na day of March 2011, at 'Se.fi~.N.o..~"2011--0!37'.4.9::0..,~ on file .in the office of the District Recorder,.. A!~ ~ ch. 0rage,' Recording District, Seward Meridian, Alaska, (herein "Easement") which pertains to the following described real property: The Southeasterly Twenty Feet (SE'ly 20') of Lot Thirty-one A (3lA), Block Nine (9), Paradise Valley Subdivision, according to Plat Number 2011-25, recorded on the 19m day of April 2011, on file in the office of the District Recorder, Anchorage Recording District, Seward Meridian, Alaska, Permittee acknowledges the validity of the Easement. Permittee warrants and represents that Permittee is the owner of the fee simple interest in the land subject to the Easement and the following described real property to which the Easement is adjacent: Lot Thirty-one A (3lA), Block Nine (9), Paradise Valley Subdivision, according to Plat Number 2011-25, recorded on the 19~h day of April 2011, on file in the office of the District Recorder, Anchorage Recording District, Seward Meridian, Alaska, (herein "Parcel"). Encroachment Permit - Page 1 of 4 2. Encroachment. Permittee has constructed or purchased the following improvements on or within the real property subject to said Easement: A septic system that encroaches approximately Three Feet (3') into said Easement for a distance of approximately Fit~een Feet (15'), as shown on the As-Built by Gastaldi Land Surveying, LLC dated November 7, 2011, (herein "Encroachment"). 3. Permit. Chugach hereby authorizes Permittee to continue the existence of the Encroachment in its existing location subject to the covenants set forth in this permit. 4. Indemnification. Permittee shall indemnify and hold Chugach harmless from any claims for personal injury, property damage or other loss arising in any way from the continuation of the Encroachment. 5. No Expansion or Increase. Permittee shall not in any way expand or increase the extent to which the Encroachment occupies any of the real property encumbered by the Easement without the prior written consent of Chugach. Chugach has no obligation to provide such consent. 6. No Interest in Real Estate Acquired. Permittee hereby acknowledges that the Encroachment and any additions thereto, even if in violation of this permit, has not and shall not in the future give rise to .any interest or estate in the real property subject to the Easement or any other real property. Without in any way limiting the foregoing, Permittee acknowledges that the Encroachment is not adverse to any interest of Chugach and its continuation is entirely with the .~:permission of Chugachfor.purposes of the common law doctrine of adverse possession.. This permit creates no interest in the real property subject to the easement. 7. Modification of Utility_ Facilities. If the electric .utility facilities located within the Easement are upgraded, added to, replaced or reconstructed, Permittee shall pay that portion of Chugach's total costs for such modifcafion which is reasonably attributable to accommodating or preserving the Encroachment. If such payment is not made within thirty 00) days of written demand for same, Chugach may terminate this permit in accordance with paragraph 9, below. 8. Covenants Running with the Land. The obligations ofthe Permittee arising from this permit shall be covenants running with the land which shall burden the Parcel and the Permittee's interest in the land subject to the Easement and shall benefit the Easement. 9. Termination. Chugach may terminate this permit after the giving of thirty (30) days written notice of such termination if: a. The Encroachment is enlarged, increased or extended within the real property affected by the Easement. Encroachment Permit - Page 2 of 4 b. The Encroachmem is damaged by any means to an extent of more than thirty percent (30%) of its replacement cost at the time of destruction. c. Permittee fails to make the payment described in paragraph 7, above. 10. Term. This permit shall, if not sooner terminated by Chugach, expire forty (40) years from the date hereof. 11. Entixe Agreement. This written permit constitutes the entire agreement between the parties with respect to the subject matter hereof and supersedes all other prior or contemporaneous agreements, oral or written, between the parties. No modifications, amendments, deletions, additions or alterations of the permit shall be effective unless in writing and signed by all of the parties hereto. CHUGACH ELECTRIC ASSOCIATION, INC. Si~'y Sehmitt,(~or Manager - - Distribution Engineering PERMITTEE . , / _J~. C. Petersen, Managifng Member MSerit Homes, LLC Date: Date: Encroachment Permit - Page 3 of 4 STATE OF ALASKA ) ) SS: ~ JUDICIAL DISTRICT ) The foregoing instrument was acknowledged before me this ~ day of ~ (PRINT NAME(S~ OF PERSON(S) SIGNING DOCUMENT) ~ P~blic in and for the ~te~ of Alas)m My ~omm~ssion ex~s: -~1 ~ !~20l q STATE OF ALASKA ) ) SS: THIRD JUDICIAL DISTRICT ) em was acknowledged before me this d_~ day of ,2011,by .5'~ a~t?y .~ck ~/PP , Se~or M~, D~bufion En~ee~g ofCh~h El~ffie ~soei~o~ ~e., ~ ~ ~mfio~ on ~ of ~e ~omfion. ~ , ~ ~ ¢;.'~.¢~- m~ hb~c ~ ~d for ~e ............. AFTER RECORDING RE~ TO: Chugach Electric Association, Inc. P.O. Box 196300 Anchorage, Ahslm 99~194500 Encroachment Permit - Page 4 of 4 On-Site Water & Wastewater System Permit MUNICIPALITY OF ANCHORAGE Development Services Department On-Site Water & Wastewater Program 4700 Elmore Road, PO Box 196650 Anchorage, AK 99519-6650 Telephone: (907) 343-7904 Permit Number: OSP111093 Tax Code Number: 02041430000 Work Type: WellSeptic Initial Permit Effective Dates: June 15, 2011 to June 14, 2012 Design Engineer: ANDERSON ENGINEERING Subdivision: PARADISE VALLEY Site Legal Address: PARADISE VALLEY BLK 9 LT 31A G:3538 Owner/Address: ANDERSON ENGINEERING PO BOX 240773 ANCHORAGE AK 99524 Site Mailing Address: 5895 BULGARIA DR, Anchorage Lot Size in Sq Ft: 90438 Total Bedrooms: 3 This permit is for the construction of: Y Disposal Field Y Septic Tank N Holding Tank N Privy Y Private Well N Water Storage All construction must be in accordance with: 1. The attached approved design. 2. All requirements specified in Anchorage Municipal code Chapters 15.55 and 15.65 and the State of Alaska Wastewater Disposal Regulations (18AAC72) and Drinking Water Regulations (18AAC80). 3. The wastewater code requires inspections during the installation. The engineer must notify the Development Services Department at least 2 hours prior to each inspection. Provide notification by calling (907) 343-7904 (24 hours). 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather must either: A. Open and Close on the same day. B. Covered, sealed, and heated to prevent freezing. Date: Date: ~//~,~// UNICIPALITY OF ANCHORAGE Community Development Department "'-- (~~~) Development Services Division On-Site Water & Wastewater Program Mayor Oan Suitivan Phone:907-343-7904 Fax:907-343-7997 ON-SITE SEWER/WELL PERMIT APPLICATION FOR A SINGLE FAMILY DWELLING Parcel I.D. Property owner(s) Mailing address Site address Legal description (Sub'd., Block & Lot) '~A-CLA § t~ CA, IA,~"¢ Legal description (Township, Range & Section) Lot Size ~O, ~ Sq. Ft. Number of Bedrooms Day phone ~'~ - O~J O3 THIS APPLICATION IS FOR: ([~ all that apply) Absorption Field Septic Tank Holding Tank Privy Private Well Water Storage THIS APPLICATION IS AN: Initial [~ Upgrade [] Renewal [] THIS APPLICATION INCLUDES A VARIANCE / WAIVER REQUEST FOR: I certify that the above information is correct. I further certify that this application is being made for a Single Family Dwelling and is in accordance with applicable Municipal Codes. (Signature of property owner or authorized agent) ush Fees: :~'~O Date of Payment: Receipt Number: Permit NO. (~'~ Waiver Fees: Date of Payment: Receipt Number: Waiver No. G:\Building\On Site\Forms\Client Forms\Permit App_010411 .doc (Rev. 1/11 ) ANDERSON ENGINEERING P.O. BOX 240773 ANCHORAGE, AK 99524 522-7773 677.7766 (FAX) June 7,2011 Municipality of Anchorage Development Services Department On-Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Subject: Lot 31A, Block 9, Paradise Valley Subdivision Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of Lot 31A, Block 9, Paradise Valley Subdivision intends to construct a new three-bedroom home on the lot. We are therefore requesting a permit be issued for the construction of a new well and septic system to accommodate the home. The attached Site Plan and backup documentation identify the location and configuration of the proposed septic system along with the alternate site. No existing wells or septic systems are closer than 100' from the proposed well or septic system. Drainage arrows are shown on the site plan showing the grade and direction of flow on the lot. The drainage pattern will not be changed as a result of this project. The test holes placed on the lot in the area of the absorption bed and alternate site indicated gravel with sand and silt (GM/GP/GW). The percolation rate of the soil was determined to be between 1 and 5 minutes per inch. Groundwater was found during the placement of the test holes at 4.5' below the surface and remained at that elevation during the monitoring period. An application rate of .7 gallons per day per square foot was used in the design of the absorption system as filter sand or clean gravel will be required to replace the organic material above the in situ soil. We are proposing to place a new 1,250-gallon STEP tank and a 43' Long by 5' wide absorption bed to treat and dispose of the effluent generated in the house. The elevation of the distribution line in the absorption bed will be at the surface and the total depth will be 2'. A minimum of 3' of fill or 2" of insulation and 2' of fill will be placed over the absorption trenches and 4' over the STEP tank. The ground surface on the lot in the area of the absorption bed slopes to the west at a grade approximating 5%. The slope increases further to the west and south of the new bed. The new bed will be constructed parallel with the contours of the slope as much Lot 31A, Block 9, Paradise Valley Subdivision June 7, 2011 Page Two as possible in conformance with Municipal requirements. The new septic system will be constructed a minimum of 100' from all wells and any surface water and 10' from the proposed and existing water services in the area. The house and STEP tank will be lower than the absorption bed with the septic effluent pumped to the absorption area through a 1.25" PVC line. If the system is constructed in accordance with our design the following statements apply: The system, if constructed as designed, will have no adverse impact on the wells in the area or those to be constructed in the future. The system, if constructed as designed, will have no adverse impact on existing septic systems in the area or those to be constructed in the future. The system, if constructed as designed, will have no adverse impact on reserve space, either surface or subsurface, on any lots located in the area. The system, if constructed as designed, will have no adverse impact on drainage patterns in the area. The current drainage pattern will be maintained. Sincerely, Michael E. Anderson, P.E. Attachments / a.. . II,, . '... / .<~ _\ . / /j Exisdng '-~ /~ / x ~ ~ /II Well e //""~, , ~ ~ ~ X,< / ?' P".. ,. p.. ~Well / ,, V X / .' E,,,st,.F':'" Z)..~ , \ A Existing '-/. ~ / /// . / ~ / 'J / / .... ~,.~\ ' ~l -. -,-'>~-.'"~ ~ -~ , ,,.d\'l' ?-., ~ ~'1 '---'---"~// ~ ' ~'-'~\'~-I - / I ~. ~ ~/ X / \ / Well I ~ -/ ,. / ~- ..... L ,"', ~glo.,,' ~ / ~'" '/ ~ ,,>x /// / Well / ~,% ,; 90,437.79 SF '~~ AREA SCALE 1' = 100' / / / / / / / / / / / / / / / / / // ,/ OD_ 0 I.~.1 / / ~ 0 I I o 0 ~1111 ~ I I / / / / X / / / / / LOT 31A, BLOCK 9, PARADISE VALLEY SUBDIVISION DESIGN FACTORS: SYSTEM REQUIREMENTS: 3 Bedroom Home Raised Bed System Perc. Rate: 5 Min./Inch 1,250 Gallon STEP Tank Application Rate: .7 GPD/SF 1.5' Minimum Coarse Sand 3 Bedrooms X 150 GPD/.7 GPD/SF = 642.86 SF Absorption Area 642.86 SF/15 SF (Width) = 42.86 LF Bed Length THEREFORE: Construct a 43' Long x 15' Wide Absorption Bed as Shown Be!ow. Place Distribution Piping at Original Ground Surface. Remove Organics to 1.5 Below Surface and Place Clean Sand & Gravel to Provide 4' Separation From Groundwater. Place Insulation and 2' of Cover Over Bed or Mound Over Bed Minimum of 3'. Place 4' of Fill Over Tank. Existing Ground 1.5'! (Min.)_[_ Top 6" of Mound Must Be Topsoiled and Vegetated to Prevent Erosion. Natural Backfill 2" Insulation & 2' Cover (Min.) Rock Min. 1.5' Clean Sand and Gravel Remove All Organics to Underlying GM/SP In Situ GM/GP Soil - 1" PVC Existing Ground 3/16" Holes @ 10 per Lateral 2.5' 5' 5' 2.5' I I I I I NOTE: TYPICAL BED SECTION ~'~'~ OF /~o sc~..~ .~, ~ .... ................ ~ " Grade Area Surrounding Bed to Drain Away. ¢ ~ 49th Minimum 6' Separation From Bedrock. ~~,.~.~ Minimum 4' Separation From Groundwater. ~~ Minimum 100' Separation From Wells in the Area. ~.~ Michael E.'AndeBon Minimum 100' Separation From Sufiace Water or Streams.. ~,~. No. 6E4381 Minimum 10' Separation From Water Se~ice Line. ~..~: .i~, .... e~FESS~ &7OO DEPTH (feet) 1 2 3 4 5 6 7-- 8 9 11 1 1 20 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT BRAGAW STREET ANCHORAGE, AK 99519-6650 SOILS LOG - PERCOLATION TEST LEGAL DESCRIPTION: LOT 5lA, BLOCK 9, PARADISE VALLEY SUBDIVISION PERFORMED FOR: M ER IT HOMES DATE: 5 / 12/II PROIECT No.: PARCEL ID#: TECHNICIAN: OB/OG ITEST HOLE 1 WAS GROUND WATER ENCOUNTERED? I IF YES ~ WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: WELL GRADED GRAVEL WITH SAND AND SILT GW/GN A. HARALA BOH @ 10' SLOPE No DATE OF MONITOPdNG: 5/17/2011 SITE PLAN SEE SITE PLAN 5-8% DEPTH TO DATE READING GROSS TINE NET TINE WATER NET DROP (MINUTES) (MINUTES) (INCHES) (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: 5/12 1 9:14 2.75" 2 9:44 30 9.63" 6.88" 3 9:45 2.88" 4 10:15 30 9.69" 6.81" 5 10:16 3.00" 6 10:46 30 9.81" 6.81" PERCOLATION RATE: 4.4 (MrN/INCH) PERC. HOLE DIA. 6" (INCHES) TEST RUN BETWEEN: 2.5 FT. and 3.5 FT. COMMENTS: TEST HOLE PRE SOAKED PRIOR TO TEST. TEST PERFORMED BY ANDERSON ENGINEERING. I, MICHAEL E. ANDERSON CERTIFY THAT THIS WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPLE GUIDELINES IN EFFECT ON THIS DATE: 6/7/2011 &700 DEPTH (feet) 1 2 3 4 5 6 7 8 9 1 11 1 14 15 16 17 · 18 · 19 · 20 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT BRAGAW STREET ANCHORAGE, AK 99519-6650 SOILS LOG - PERCOLATION TEST LEGAL DESCRIPTION: PERFORMED FOR: DATE: 5/[2_/11 PARCEL ID#: LOT .SIA, BLOCK 9, PARADISE VALLEY SUBDIVISION OB/OG MERIT HONES PROIECT No.: TECHNICIAN: A. HARALA TEST HOLE 2 I SLOPE YES DATE OF MONITORING: 5/17/2011 SAND WITH SILT AND GRAVEL WAS GROUND WATER ENCOUNTERED? __ IF YES ~ WHAT DEPTHS__ DEPTH OF WATER AFTER MONITORING: SM/GM SITE PLAN SEE SITE PLAN 5-8% BOH @ 13' DEPTH TO DATE READING GROSS TIME NET TIME WATER NET DROP (MINUTES) (MINUTES) (INCHES) (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: PERCOLATION RATE: TEST RUN BETWEEN: __(MIN/INCH) PERC. HOLE DIA. (INCHES) FT. and FT. COMMENTS: No PERCOLATION TEST. TEST HOLE IS I0' LOWER THAN THI. TEST PERFORMED BY ANDERSON ENGINEERING. I, MICHAEL E. ANDERSON CERTIFY THAT THIS WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPLE GUIDELINES IN EFFECT ON THIS DATE: 6/7/Z011 &7GO MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT BRAGAW STREET ANCHORAGE, AK 99519-6650 SOILS LOG - PERCOLATION TEST DEPTH (feet) 1 2 3 4 5 6 7 8 9 11 LEGAL DESCRIPTION: LOT .SIA, BLOCK 9, PARADISE VALLEY SUBDIVISION PERFORMED FOR: MERIT HOMES DATE: 5 / 12 / I I PROJECT No.: PARCEL ID#: TECHNICIAN: OB/OG TEST HOLE 3 WELL TO POORLY GRADED GRAVEL WITH SAND AND SILT GW/GP/GN A. HARALA WAS GROUND WATER ENCOUNTERED? __ IF YES ~ WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: SLOPE YES 9/4' DATE OF MONITORING: 5/17/2011 SITE PLAN SEE SiTE PLAN 5-8% I 1 1 17 . 18 . 19 . 2O BOH @ 16' DEPTH TO DATE READING GROSS TINE NET TINE WATER NET DROP (HINUTES) (PIlNUTES) (INCHES) (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: 5/12 1 11:12 1.25" 2 11:42 30 8.75" 7.50" 3 11:43 1.38" 4 12:13 30 8.75" ?.38" 5 12:14 1.13" 6 12:44 30 8.44" 7.31" PERCOLATION RATE: 4.1 (MIN/rNCH) PERC. HOLE DIA. 6" (rNc}ms) TEST RUN BETWEEN: 3.5 .FT. and 4.5 FT. COMMENTS: TEST HOLE PRE SOAKED PRIOR TO TEST. TEST PERFORMED BY ANDERSON ENGINEERING. I, MICHAEL E. ANDERSON CERTIFY THAT THIS WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPLE GUIDELINES IN EFFECT ON THIS DATE: 6/7/2011 &700 DEPTH (feet) 1 2 3 4 5 6 7 8 9 1 11 20 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT BRAGAW STREET ANCHORAGE, AK 99519-6650 SOILS LOG - PERCOLATION TEST LEGAL DESCRIPTION: LOT 3lA, BLOCK 9, PARADISE VALLEY SUBDIVISION PERFORMED FOR: MERIT HOMES DATE: 5 / 12/II PROIECT No.: PARCEL ID#: TECHNICIAN: OB/OG TEST HOLE 4 WELL TO POORLY GRADED GRAVEL WITH SAND AND SILT GW/GP/GN SAND WITH SILT AND GRAVEL SM/GM A. HARALA WAS GROUND WATER ENCOUNTERED? IF YES ~ WHAT DEPTH2__ DEPTH OF WATER AFTER MOi',ffTORING: SLOPE YeS DATE OF MONITORING: 5/17/2011 ' SITE PLAN SEE SITE PLAN 5-8% BOH @ 17' DEPTH TO DATE READING GROSS TINE NET TIME WATER NET DROP (MINUTES) (MINUTES) (INCHES) (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: 5/12 1 1:10 2.63" 2 1:40 30 7.88" 5.25" 3 1:41 2.50" 4 2:11 30 7.63" 5.13" 5 2:12 2.75" 6 2:42 30 7.88" 5.13" PERCOLATION RATE: 5.8 (MIN/1NCH) PERC. HOLE DIA. 6" (rNC~rES) TEST RUN BETWEEN: 7.5 FT. and 8.5 FT. COMMENTS: TEST HOLE PRE SOAKED PRIOR TO TEST. TEST PERFORMED BY ANDERSON ENGINEERING. I, MICHAEL E. ANDERSON CERTIFY THAT THIS WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPLE GUIDELINES IN EFFECT ON THIS DATE: 6/7/2011 ON-SITE WASTEWATER DISPOSAL SYSTEM CONSTRUCTION AND MATERIAL SPECIFICATIONS SUBJECT: LOT 31A, BLOCK 9, PARADISE VALLEY SUBDIVISION GENERAL: The scope of this project includes furnishing and installing a new 1,250 gallon STEP Tank at the location shown on the Site Plan. Work also includes the construction of a new 43' long by 15' wide absorption bed also shown on the Site Plan. A 1.25" PVC line must be placed between the lift station and the new absorption bed. The distribution pipe for the bed will be placed at the ground surface. The total depth of the bed will be 2'. A minimum of 3' of cover must be placed atop the bed. A minimum of 4' of cover is required over the Septic Tank and Lift Station. All disturbed areas must be revegetated after construction is complete. A minimum of 1.5' of coarse sand or gravel must be imported to replace the organic layer above the in situ gravel in the bed area. Construction shall be in accordance with the approved site plan, design drawings, Municipal Permit with any special provisions or conditions, and all applicable State and Municipal Wastewater Disposal Regulations. The Contractor shall be responsible for obtaining all underground utility locates and for the layout of the septic system and verification of the location of all lot lines. Contractor is also responsible to verify the separation distance from the well on this and adjacent lots and from surface water and streams in the area. Unless specifically agreed otherwise, the contractor shall be responsible for final grading areas subsequently depressed from soil settling. Property owner shall be responsible for revegetation of affected areas unless specifically agreed otherwise. Contractors installing wastewater disposal systems must be certified by the Development Services Department Building Safety Division On- Site Water and Wastewater Program for system installations. Owners installing their own systems must receive prior approval from the On- Site Water and Wastewater Program before beginning system installation. SEPTIC TANK/LIFT STATION INSTALLATION 1. The 1,250-gallon STEP Tank must be obtained from a Municipally approved septic tank manufacturer. Lot 31A, Block 9, Paradise Valley Subdivision June 7, 2011 Page 2 of 4 2. The septic tank shall be sufficiently bedded to prevent settling or shifting of the tank. 3. All standpipes on the septic tank shall extend a minimum of 12 inches above final grade. 4. Tanks installed without 4' of cover shall have a minimum of 2" of direct burial insulation. A foundation cleanout shall be installed one to four feet from the building foundation. Two cleanouts are required between the tank and the drain field. 6. Final grading over the tank shall be such that a positive slope exists away from the septic tank. DRAIN FIELD CONSTRUCTION: 1. The drain field shall be constructed to the dimensions shown on the design. The bottom of the bed shall be within 2" of level. Distribution piping must be placed level with perforations down atop a level bed of drain field rock. Rock should then be placed over the pipe to provide a minimum of 2" of cover. 3. A silt barrier or geotextile fabric must be placed between the drain field rock and the natural soil backfill. Monitor tubes must be 4" in diameter and installed at the locations shown on the design. The portion below the distribution line must be perforated. Contractor shall verify the septic tank and drain field are a minimum 100' away from any private water wells in the area, 150' from a Class "C" Well or 200' from any community well. Direct bury insulation must be placed over the distribution system if less than 3' of backfill depth is available. Finish grade over the trench must be mounded to prevent settlement or depressions. 7. Grade area surrounding the absorption trenches to drain away. A minimum 2' of accepting soil is required below the drain field rock for a 5' wide trench. All pockets of unacceptable materials must be removed and replaced. Lot 31A, Block 9, Paradise Valley Subdivision June 7, 2011 Page 3 of 4 MATERIAL SPECIFICATIONS: The lift station must be constructed by a municipally approved septic tank manufacturer. An Orenco 20 OSI 05 HHF-5 pump is recommended. The tank must be equipped with an approved high level alarm system meeting the requirements of AMC 15.65.030. 2. The following pipe materials are approved for use in septic system installations in the Municipality of Anchorage: Cast Iron (perforated and solid), ASTM D3034 or P.V.C. (perforated and solid), ASTM F810 or H.D.P.E. (perforated, but not solid) and ASTM D2662 or A.B.S. (perforated and solid). 3. Insulation shall be at least 2" thick extruded direct burial polystyrene (Dow Chemical Co. Styrofoam HI or equal). 4. Septic tank inlets and outlets shall be fitted with watertight couplings (Caulder, Fernco, or equal). 5. A permeable geotextile fabric (Typar, Mirafi or equal) must be installed between the final drain rock layer and the native soil layer. 6. All drain rock shall be .5" to 2.5" in diameter with less than 3% passing the #200 sieve. FILTER SAND SPECIFICATION: 1. Material for Filter Sand must be classified as a masonry sand and meet the following gradation: 50% or More Passing the No. 4 Sieve 2% or Less Passing the No. 100 Sieve 1% or Less Passing the No. 200 Sieve INSPECTIONS: Municipal Ordinance requires a minimum of two inspections. These inspections must be conducted under the supervision of a professional engineer registered in the State of Alaska. The first inspection must be conducted after the excavation of trenches, beds or pits and before the installation of any gravel. A septic tank may be set in place, but may not be backfilled. The second inspection must be conducted after the placement of the geotextile fabric, gravel, distribution piping, standpipes, cleanouts and insulation. No backfill should be in place at the time of inspection. Lot 31A, Block 9, Paradise Valley Subdivision June 7, 2011 Page 4 of 4 Contractor shall provide a copy of all field survey layout and construction notes for use in preparing the certified as-built of the completed system. Paradise Valley Bik 9 Lt 31A 511843 ANDERSON ENGINEERING P.O. BOX 240773 ANCHORAGE, AK 99524 522-7773 677-7766 (FAX) February 8,2011 Municipality of Anchorage Building Safety Division On Site Water and Wastewater Program 4700 Elmore Street Anchorage, AK 99507 Attention: Debbie Wockenfuss Subject: Lot 31A, Paradise Valley Subdivision, S-11843-1 Septic System Feasibility Study Dear Debbie: The owner of Lots 31, 32 and 33, Block 9, Paradise Valley Subdivision intends to vacate the interior lot lines and create one lot identified as Lot 31A, Block 9, Paradise Valley Subdivision. The lots front along Bulgaria Drive and are accessed by driveway off of Bulgaria Drive. The total area of the combined lots and the new Lot 31A is nearly 90,500 square feet. The ground surface of the lots slopes from northeast to southwest at varying grades but typically between 10% and 15%. A steeper slope of nearly 50% is located in the southeast corner of the new lot. The septic system absorption trenches proposed for the lot will be placed in areas where the surface slope is less than 15%. The separation distance from the steep slope, however, will be less than 50' and closer to 40'. A Category III Nitrate Reducing System is required for the lot and a separation distance waiver to the steep slope may be required during the septic system permitting phase for Lot 31A. Test holes were placed on the proposed lot by S & S Engineering in October of 1995. Water monitoring was completed through October 15 of that year and resulted in only one area suitable for the construction of an absorption system. Water monitoring completed on Februan/ 9, 2011 indicated the water levels were at levels lower than those shown on the tests performed by S & S Engineering. The test hole utilized for the reserve area was placed to a depth of 7' where bedrock was encountered. A percolation cavity was prepared to determine the absorptive characteristics of the soils encountered. The cavity was presoaked in accordance with Municipal requirements and a percolation test performed. The results of the test are included in the attached Lot 31A, Block 9, Paradise Valley Subdivision S-11843-1 February 8, 2011 Page 2 documentation. Groundwater as of this date is lower than 4' below the surface. The proximity of groundwater to the surface will not allow the use of conventional gravity flow septic systems on the lot. We therefore required the use of the Category 3 Nitrate Reducing septic system like the Advantex Treatment System. In addition, any home to be constructed on the lot will be limited to four (4) bedrooms through a plat note. An application rate of 2 gallons per day per bedroom is allowed for the Category III System for the percolation rates achieved. This compares with a .45 gallon per day per square foot (GPD/SF) for a standard septic system. The reserve area required for a standard septic system with an application rate of .45 GPD/SF is 16,000 Square Feet (SF). We are proposing a reserve area of 8,000 SF which is half that required for a standard system even though the application rate is 4 times greater which would justify a reserve area of 4,000 SF. A note will be added to the plat concerning protection of the reserve area from placement of driveways, parking areas or structures. A study of the lots completed on February 9, 2011 indicated no groundwater in the area. None of the ditches were flowing and no runoff was evident. Conversations with the current owner of the lot indicate no surface water has ever been seen in the area with the exception of minor runoff in the ditch line along the road after heavy storm events and during spring runoff. This area is more than 100' from the reserve area proposed for the lot. Based on our field study and water monitoring completed to date it appears Lot 31A is capable of supporting an onsite septic system and well. The size of the home to be constructed on the lot must be limited to four (4) bedrooms. Additional test holes and percolation testing will be completed during the permitting phase for development of the lot. We are confident a suitable absorption area will be found on the lot if the area shown is not utilized. Copies of the test hole log, percolation tests, test hole location map and the contour map showing the surface topography of the property are included for your use. We hereby request your approval of Lot 31A, Block 9 Paradise Valley Subdivision as designed with the septic system reserve area at the location shown. Sincerely, Michael E. Anderson, P.E. Attachments LOT 31A, BLOCK 9, PARADISE VALLEY SUBDIVISION DESIGN FACTORS: SYSTEM REQUIREMENTS: Four Bedroom Home 5' Wide Trench System Perc. Rate: 40 Min,/Inch Nitrate Reducing Treatment System (Cat. III) Application Rate: 2 GPD/SF .5' Drainfield Rock 4 Bedrooms X 150 GPD/2GPD/SF (Application Rate) = 300 SF Absorption Area 300 SF/5 SF/LF = 60 LF Trench Length THEREFORE: Construct a 60' Long x 5' Wide x No Effective Depth Absorption Trench at the Location Shown. Flow Line Elevation in Trench to be 1' Above Original Ground Surface. Reomove Organics to 1.5' Below the Ground Surface and Place Coarse Sand to 1' Above Original Ground Surface. Place 4' Cover Over Septic Tank and 3' of Cover Over Trench. 2' Natural Backfill 6" Per Muni. Code 3 3 Geotextile 4" Perforated PVC (Holes Down) Drainfield Rock Coarse Sand (See Spec,) Underlying Silt 5' I NOTE: TYPICAL 5' WIDE TRENCH SECTION (NO SCALE) ~ ~,,~.. ,.........~, Grade Area Over Trench to Drain Away. Minimum 6' Separation From Bedrock. Minimum 4' Separation From Groundwater, Minimum 100' Separation From Wells in the Area. Minimum 100' Separation From Surface Water or Streams. T II 11 12- 14- ML Sit. T- ENcouNTERED~ . IF YES~ AT WHAT DEPTH? I,///Illllll 15- 16 17 18- 20- COMMENTS , T~ ~ T- IL/'~ ~ PERCOLATION RATE. , ~ {mmutesJinc~d PERC HOLE DIAMETER TEST RUN BE'tWEEN _~ ~/~ ~ FTAND ~ '~ ~ $ & $ I~i~i~l~IN$ PERFORMED BY: ]71B.w4 ~j~e klver ~p ~ead No. ~ ~ CERTIFY THAT t~t~ T~T WAS P~FORMED IN ACCOR~NCEWI~~~ALGUtDELINESINEFFE~TONTHISOA~E. ~AT~' /0 /~ ~/~ ., DEPARTMENT OF HEALTH ~ HUMAN S~RVIGES 25 L Streak An~(~ge~ Aiaske99Eo2.o660 11 13 14- 15- COMMENTS '~'"'E. £ T' /'/~ ,.~ t[. ~ j Readi.g Date Gr0~$ Net J Depth ~to Net Time Time W~er Drep ,~ ~?.1 ~ ~ ~, ~ ~ ,.~-, PERCOLA~rloN RA~E Imm~l~,/i~ch) PERC HOLE DIAMETER TEST RUN BETWEEN ~ '/~ ~ ~ FT AND ..... PT PERFORMED BY: 17034 Elgl~ R~t; [eel) Reed Nm 2~ ' - , CERTIPY T~T TH~S T~T WAS ~ORMEO IN AOCORD~E WITH~F~~L GUtDELrNES tN EFF~T ON TH~ DA~E. DATE: / 0 / / Y / ~[ ~ 12~8 (Rev. ~85~ SOILS LOG ~ PERCOLAT!QN TEST 9 12 13- COMMENTS ENCOUNTERED? IF ¥E$. AT ~HAT DEPTH~ PERCOLATION RATE [mm~-'=/inch) PERC HOLE DIAMETER , TEST RUN ~ETWEEN FT AND F~ PERFORMED BY: ~ & $ ENGINEEEING , t CERT FY THAT THI~ TE~T WAS PERFORMED 17034 Eagle RIYer Loop Road No. 2~04 /~ ~2-008 ~Rev. 4/85~ ? DE~AfiTMENT~FHEALTH &HuMA~ ~5 ~!E~ 6'treet~;~nch~rag~, A 4 5 6 7 9 ~0- WAS GRQUND WATER ENCOUNTEREO? t2- 13- 15- 16- 18, 20- Gress Net ~Depth to PERCOLATION RATE ?ml~utes/J~ch} PERC HOLE DIAMETER . TEST RUN BETWEEN FT ANO FT 1 ANDERSON ENGINEERING P.O. BOX 240773 ANCHORAGE, AK 99524 522-7773 677-7766 (FAX) February 15, 2011 Municipality of Anchorage Building Safety Division On Site Water and Wastewater Program 4700 Elmore Street Anchorage, AK 99507 Attention: Debbie Wockenfuss Subject: Lot 31A, Block 9, Paradise Valley Subdivision, S-11843-1 Water Availability Study Dear Debbie: We have collected information on several wells in the area of the proposed Lot 31A, Block 9, Paradise Valley Subdivision to estimate the possible depths and production rates of wells to be constructed in the future. Field investigations indicate a combination of wells constructed without the presence of bedrock and others indicating bedrock at depths from 5' below the surface. In most cases the wells are shallow in comparison to most wells in the Anchorage area with the deepest at 349' and the shallowest at 80'. The wells located on Lots 1 and 35 to the northwest are 305' and 349' deep respectively. In both cases bedrock was encountered at very shallow depths (5' and 7'). Water production rates in these wells are between .5 and .88 gallons per minute. The wells on lots to the east are much shallower and produce greater volumes of water. Bedrock is typically encountered at closer to 20' below the surface. Production rates vary from 2.5 to 10 gallons per minute. A breakdown of the wells in the area with their respective production rates follows: LOT 31A, BLOCK 9, PARADISE VALLEY SUBDIVISION WATER AVAILABILITY STUDY WELL LEGAL DESCRIPTION DEPTH Paradise Valley, Block 9, Lot I 305' 5' BEDROCK DEPTH PRODUCTION .5GPM(Log) .88 GPM (Test) Lot 31A, Block 9, Paradise Valley Subdivision February 15, 2011 Page 2 Paradise Valley, Block 9, Lot 2 165' 8' 2.5 GPM Paradise Valley, Block 9, Lot 3 230' None 4.5 GPM Paradise Valley, Block 9, Lot 4 80' 12' 10.0 GPM Paradise Valley, Block 9, Lot 5 105' 34' 15.0 GPM Paradise Valley, Block 9, Lot 6 105' 46' 8.0 GPM Paradise Valley, Block 9, Lot 34 99' 39' 8.0 GPM Paradise Valley, Block 9, Lot 35 349' 7' 5.0 GPM No development has yet occurred to the immediate east of Lot 31A. Surface water in the form of Potter Creek runs through the area to the south of Lot 31A. The presence of Potter Creek and the watershed area surrounding the Bear Valley area contributes to the shallow aquifer apparently serving the area. Runoff from the mountains surrounding the area is noted year round constantly replenishing the aquifer. It is obvious from our study that the well to be constructed on Lot 31A in the future will be placed to depths of less than 200' and will probably be founded in bedrock. The depth of the bedrock is unknown, but may be less than 40'. The production rates will be sufficient to support a four bedroom home and can be expected to be between 2 and 5 gallons per minute. Sincerely, Michael E. Anderson, P.E. Attachments