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Home My WebLink AboutBIRCH TREE ESTATES BLK 1 LT 24PERMIT NUUBER: SW990145 AS-BUILT DILAWING Pk~CL'L 10 NUMBER: 017-141-14 ~-~ ...-- ~.~ ~ ¢~f~ ~ II ........... 7320 [ ~ HGG~ CIRCE, ~CB~[ ~ 99504 ~IRO~ ~REE ESTATES, LOT 24, BLOOK 1 9/1/99 A.C.G. N.T.S. n$, ~ ~ ~4 INSPECTION BEI'OI~T : MUNICH'ALITY OF:ANCHORAGE - BUILDING SAFETY DIVISION 3500 ZAP. TUDOR ROAD..au~CItORAGE.o ALASKA INi~PIiGTIONSL' V~L,w: (9~7] $~Ja$45/ F~vc,: f'9#;9 J4$~?J$ INFORMAITOI~:' 057) PllOb'~al; 272-4591 !'7101v~#2; ~ 24 BLOCff: I SUZIDIr'I~IO,%? BIRCIt 'flLEE E,gTATE$ ~ OF - ~.'. /ff~ IN~I~C'IIOA;' 1~ ~'~ ~ ~ ~. ~ ~ ~, . , : ~ ~ /- ,... ./~ .~.'~ . - . .--,o. ,, ~",r ,'.~./ U~ Ct ALrn' oF A~CHO E ~pa~ment of Heath and Human On-S~e Se~ces Pwgram 825 L Street, Room 502 P.O. Box 1966~, Anchorage, AK 99519~650 (gO7) 34~744 ON-SITE WASTEWATER DISPOSAL SYSTEM PERMIT Upgrade Date Issued: Jun 18, 1999 Expiration Date: Jun 17, 2000 Permit Number: SW990143 Legal Description: BIRCH TREE ESTATES BLK I LT 24 Design Engineer:. 0041 AK Water & Wastewater Consulta Owner Name: Richard & Sherry Jones Owner Address: 5231 E 147TH AVENUE ANCHORAGE, AK 99516-4250 Parcel ID: 017-141-14 Site Address: 005231 14TTH AVE E Lot Size: 21283 SQ. FT. Total Bedrooms: 4 Permit Bedrooms: 4 This permit is for the construction of: [] Disposal Field [] Septic Tank [] Holding Tank [] Privy [] Private Well [] Water Storage All construction must be in accordance with: 1. The attached approved design. 2. Ail requirements specified In Anchorage Municipal Code Chapters 15.55 and 15.65 and the State of Alaska Wastewater Disposal Regulations ( 18AAC72 ) and Ddnking Water Regulations ( 18AAC80 ). 3. The engineer must notify DHHS at least 2 hours prior to each inspection. Provide notification by calling (907) 343-4744 ( 24 hours ). ( Not required for a Water Supply Permit only ). 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather must be either. A. Open and closed on the same day. B. Covered, sealed, and heated to prevent freezing. 5. The following special previsions. THIS PERMIT ISSUED FOR THE CONSTRUCTION OF AN INNOVATIVE REClRCULATING TRICKLING UPFLOW FILTER SYSTEM (REACTEC). AS A CONDITION OF THIS PERMIT, THE OWNER SHALL MAKE ARRANGEMENTS FOR THE SYSTEM TO BE SAMPLED ONCE A MONTH THROUGH DECEMBER 1999 AFTER THE SYSTEM IS PUT IN USE. THE ATTACHED PROPERTY OWNER AGREEMENTS BECOME A PART OF THIS PERMIT PACKAGE. Alaska Water & Wastewater Consultants, Inc. 6901 Debarr Road, Suite 2B ~ Anchorage ~ Alaska 99504 Phone (907) 337-6179 ~ Fax (907) 338-3246 Consulting Engineers April 28, 1999 Municipality of Anchorage Department of Health & Human Services Division of Environmental Services On-Site Services Section P.O. Box 196650 Anchorage, Alaska 99519-6650 Reft Septic Upgrade and Waiver Request for Lot 24, Block 1, Birch Tree Estates Subdivision RECIRCULATING UPFLOW FILTER {RUF) SYSTEM To whom it may concern: 1. GENERAL: The existing 4 bedroom home is served by a private septic system and a private well. The existing septic system does not meet Municipal requirements and must be upgraded. There are numerous site constraints which are as follows: · The location of the house and driveway · The location ofthe creek along the south property line · The location of the 100' well radii (walvers required) · The presence ofshallow groundwater and impermeable soils Given these site constraints, we are proposing to install the Recireulating Upflow Filter (RUF) system. 2. WAIVER REQUEST: As can be seen on the attached site plan and design, the well serving the property and the well serving Lot 25, Block 1, Birch Tree Estates encompass all usable area for a septic system. We are requesting that 75 feet waivers be granted from both of these wells to any portion of the proposed septic system upgrade. The following items are justification factors for the issuance of the waivers: · As mentioned, we are proposing to install a Innovative RUF system which treats all wastewater to the point were it is generally clear water. · As can be seen on the topography site plan, the topography runs from east/northeast to west/southwest. The well serving the referenced property is uphill from the proposed septic system and the well serving the neighbor'mg property is to the northwest of the proposed septic system. In short, any surface effluent would have to travel uphill or side ways on the slope to migrate towards either well. · As can be seen on the attached well logs, there are confining clay layers which should protect the aquifer. · Water samples were taken (by A.W.W.C., Inc.) from the well serving Lot 25 (12/9/99)and from the well serving Lot 24 (11/13/98). No bacteria were encountered and the maximum nitrate level was 0.307 mg/L. Given these mitigating factors, it is our opinion that there is justification for the issuance of these waivers. A waiver fee of $920.00 has been submitted in addition to the sewer upgrade permit fee. 3. SOIL CONDITIONS: One test hole was excavated on April 6, 1999. The soils below the organics was a ML/SM material to a depth of 4.5 feet and then transitions to a GW material to a Depth of 7.5 feet. At 7.5 feet, the soil transitions to a ML material (visually rated to be impermeable) to a depth of 10 feet (bottom of test hole). Groundwater was encountered during thc excavation at a depth of 7.5 feet. On April 21, 1999, the monitoring tube was checked and groundwater was found to still be at 7.5 feet. A percolation test was performed between the depths of 4.0 feet to 4.5 feet. The percolation rote was measured at less than 1 minute/inch (see attached soil logs). 4. DRAINFIELD: The intent is to install a Recirculating Upflow Filter (RU1e) system that will allow the use of a small drainfield in the area around a 30 foot radius of the test hole. The size of the drainfield will be based upon the previously established criteria for the RUF systems, which dictates that soils percolating between I & 30 minutes/inch have an allowable application rate of 4 gpd/tt2, and soils percolating .between 30 & 60 minutes/inch have an allowable application rate of 2 glxt/ft2. Given the percolation rate was less than I minute/inch, we propose that a 4 gpd/t~2 application rate would apply. We are proposing to install a 5 foot wide drainfield that is 30 feet long that is 5 feet deep (maximum). We propose that 2 feet of M.O.A. approved sand filter be added and then 1 foot of clean, washed, sewer drainrock be added below the distribution line (a total of 1.5 feet of drainrock). This corresponds to an absorption area of 171 ft2, or an 2 · application rate of 3.5 glxt/ft (assuming 600 gpd total flow). 4. ORENCO PACKAGE SYSTEM: The STEP tank with the trickling and upflow filter will be manufactured by Anchorage Tank & Welding to meet the latest design criteria established by Orenco Systems, Inc. The point of contact at Anchorage Tank is Lowell McNutt. As with their standard STEP tank, it is equipped with a high water alarm per M.O.A requirements. 5. SURFACE WATER: There is creek that runs along the south property line. A 100 feet setback will be flagged by a registered land surveyor prior to construction to insure separation distances will be met. 6. ?OPOGRAPIIY: As can be seen on the attached topography site plan, the lot slopes f~om approximately east/northeast to west/southwest at a grade of approximately 5-15%. In short, there are no slope concerns. 7. CLOSING: I am open to any suggestions fi.om your department that would be an improvement to the proposed system. I am unaware of any negative impacts that this installation would impose on adjaqent wells, or septic systems. If you have any questions, please call us at 337-6179. Sinc ly Pres[deb ~] BIRCH "iR[[ EST. BIRCH ~1~[[ F. ST. BIRCH TR[[ F.~. BIRCH LOT 31. ~.OC~ I, 8;RCH '~£E [.Et'. EOT 35. BLOCK 1. BIRCH TRFF EST. --WOODHAVEN AVENUE ALASKA ~ATER AND ~ASTE~'ATER CONSULTANTS, INC. BIRCH TREE ESTATES, LOT 24, BLOCK 1 SITE PLAN FOR SEPTIC UPGRADE '/Z ; ............. [/)CATION NER~HBOR'$ ~ \ ~/ \ EAST 147th AVENUE ~PR~O ~D RL~R ~D 4 BEDROOM House B~ER IN ~ SE~C ~ TO - NOT[: THE CONTR.~'TOR SHN./. HAVE THE NORTH PROFg~'TY UNF.., THE 75' WELL RADII OF THE ................. "WD. LS ON LOT 24 2,ND 25, BLDO( 1, BIRCH TREE ESTATES, AND l~E 100' CRED( $[TI~CK F'~I;GED BY A REmSTERED LAND SURMEYO4~ P~IOR TO 1HE LEGAL DESCEIPIIO~: PHONE.: [gO'J) ~37-817g/FAX: (gO7) BIRCH TREr' ESTATES S/D. LOT 24..LOCI(, ~'..':,,;J~.~..~T,/,,/k./,',,,; r~'~- o~ wort 700 LLI ALASKA WATER & WASTEWATER CONSULTAIVI'S, INC. 6901 DE~ARR ROAD SUITE 2B. AN~ AK. 09504 ~~!~.~ .... PHONE.: (907) 337~61~/'FAX: (907~ BIRCH TREE ESTATES S/D; LOT 24, BLOCK 1. ........ PLAN AND PROFILE OF RECIRCULATING SEPTIC TANK 4'xO' BOARD INLET ALASKA WATER & WASTEWATER CONSULTANTS, INC. ~o.~'~0..~. ~'~. RICHARD AND SHERRY JONES 345-1700 Q o/~1' PLAN VIEW : , :i : IZfI,OW f Lfl~ PROFILE VIEW A I.&SKA WATI~R AND WAST~WATER CONSULTANT~, ~ ~.. BIRCH TREE ESTATES S/D; LOT 24, BLOCK 1, ~f~4~ ~ P~N AND PROFILE OF DRAINFIELD ~..~.j[~ ~....~ 6901 D£BARfl R~, SU;T~ 2B · ~CHORACE, A~. 99~ ~SOIL LO~ PERCO~TION TESTI ~GAL DESCRI~ION: BtRCH ~EE E~A~. L~ 24, BL~K 1 .................... PERFORMED FOR: RICED ~O SHER~ JON~ ~~:~ ~ PERFORMED: 4/6/99 v~ % .. - .. & ~ ~-~ ORG I TEST HOLE ~ 1 I "~E'"~{~,.,.,~" ............ "~ 11-- SOTL CLASSIFICATIONS · ~'"~. GW ~~---..:':::-'-":':' ORG ~GP ~1 I ML ~ n~ ~ CL ~GC OL ~ SW MH ~ SP CH ?~ sc DEPTH TO DATE GROUNDWATER 7.5 4/6/gg 7.5 4/21/99 LSITE PLAN] I' = I00' J,. DATE READING CLOCK NET TIME WATER LEVEL NET DROP TIME (MINUTES) READING (INCHES) 12-- 13-- 14-- 15-- 16-- 17-- 18-- 19-- PERCOLATION RATE <1 (MIN./INCH) / PERt. HOLE DIA, SEE(INCHES) / COMM[NTS 20 TEST RUN BETWEEN/~//14'0~ J~r~//~/JN~-// 4.5 FT. P~FORMED aY ,~S~ .W^T~ ', W~ST~W^'mR ~. l, ',.~,t:/"~"~"/''''- . CEm~FY THaT THIS WAS PERFORMED I~ ACCORDANCE WITH ALL s-r^~E-~,~[~ I~NI~I~.~/'GUIDF_.LINES IN EFI-ECT ON THIS LCT 12. BIRCHTR£E EST. LOT 32, 1 :£ EST. NUE 6901 A.NCHORA~, ~ 99.504 (907) 3,38-3246~ ~45 - ~ 700 p. ROPERTY OWNER AGREEMENT FOR THE. MAINTENANCE OF AN ON-SITE WASTEWATER DISPOSAL SYSTEM Anchorage Depa~m~nt of Health and Human Servic~s..(DHH~ ami the property~_.~ .. ow~e~is) of: This agreement is made for the purpose of main~g an.on-site wastewa~r disposal system on the abject property. The property owner? a~'ee to ~e following: Submit to the Municipality of Anchorage, on an ~.-ual basis, an i~x'cfion and operation statement from a registered professional e~ineer. TMs inspec~on and . operation statement ,~h~I! verify that the engineer.has i~pected all effluent and air pumps, timers, alld alalllls, alld that ally deficiencies have been repaired and that the ~.~Aiz~ ~. ~7~.~F.~ (Printed Name) (Printed Name) _ /~ --~ -..l~otarize Here ...... - - vho is personally ~o~ ~o me ~ ~hose idi,~i~y I proved on ~he basis of vhose identity I provdd on ~he ba~h/a~fi~Cion , a credible ~o be ~he si~lr o[ ~he abo~e document, and he/abe ac~?vl~dged Municipalit5 of Anchorage Department of Health and Human Services 825 "L" Street Rick Mystrom, P.O. Box 196650 Anchorage, Alaska 99519-6650 Mayor hltp:llwww.ci.anchorage.ak,us Dear Homeowner/Prospective Buyer: The on-site wastewater disposal system you are purchasing/installing is an "ahemative" wastewater disposal system. This system, known as a "Reeirculating/Upflow Filter Septic System*, is undergoing testing within the Municipality of Anchorage under the Alternative System section of the Wastewater Disposal Regulations (AMC 15.65). There are certain risks involved with the ownership of one of these systems: I. The technology used in this system has been shown to be effective in other areas. The system is currently undergoing a two year testing period in Anchorage under the guidance of the Department of Health and Human Services (DffHS) and the State of Alaska Department of Environmental Conservation (ADEC) to determine its effectiveness in a subarctic environment. 2. The system for this property received a vertical separation distance waiver fi.om both State of Alaska and Anchorage Municipal Codes to ground water. This waiver was granted due to the system's expected performance within the site conditions on this property. I (we) certify that I (we) have read ~he above statements and am (are) aware of the risks outlined. I (we) also c.ertify that [(we) am (ar~) in the process of purchasing (property legal description): .-" ..--~-"---..--(Ptu"ehaser Name) 7' :.-'.5._ ~. '. '~,~ ~.. :~, :< (Purchaser Sil~bature) .......... Notarize Here - State (P~chaserName) ~chaser Signatm'e) I/~, ' day of ~/7~na , / q q 5~ ~/Tff-~ personally appeared before.me, ~ho ts personally kno~ co me ~ whose iden~i~y I proved on ~he basis of whose identity I proved on ~he oa~h/aff{~a~ion of , a credible witness signer of ~he above docuaen~, and he/she ac~o~ledged chac he/she signed ~/~ ~ ~ ~y co=ission expires Municipality of Aritho.rage Department of Heo2a~t.[h' ~tHuman Services R,ckMystrorn. P.O. BOX 196650 Anchorage. Alaska 99519-6650 Mayor hit p://www.ci.anchorage.ak.us June 21, 1999 Jeff Gamess, PE Alaska Water & Wastewater Consultants, Inc. 6901 De Ban'Road, Suite 2 Anchorage, Alaska 99504 Su~e~: Waiver Request for Lot 24 Block 1 Birch Tree Estates Waiver Request #WR.990026 Parcel ID #017-141-14 SW990143 Dear Mr Gamess: Your request for a waiver of the required 100 feet horizontal separation from the on-site wastewater disposal system to private well has been approved. The approved separation distance is 75.0 feet. This separation waiver pertains to the wells on Lot 24 & 25 Block 1 Birch Tree Estates and the proposed on-site wastewater disposal system on Lot 24.. This waiver approval applies to the existing on-sitewastewaterdisposal system to private well separation only. Any future upgrad~ to the on-site wastewater disposal system will require all separation distances be met or another approval from this department. If there are any further concerns or questions regarding this waiver, please call our office at 343-4744. Sincerely, Daniel J. Roth Civil Engineer On-Site Water Quality Program ~. ~o ~ RE(IR~kI~T~#6 Tt~k~l#~ upFLO~/ Lc~ ELL. O~gTFt -. LOT 6. ~, $. £. R. 6.7 ~Z 2.0 75- ' ' 2 17.7 sion MUNICIPALITY OF ANCHORAGE Department of Health and Human Services On-site Services Section Wa'iver Review Worksheet WR% WR990026 PID# 017-141-16 Date Received: May 10, 1999 HA% Permit Legal Description: Lot 26 BLock 1 Birch Tree Estates Engineer: Jeff Garness, PE, Alaska Water & Wastewater Consultants. Inc. 6901 De Bart Road, Suite 2B; Anchoraffe, Alaska 99506 Applicant: Richard/Sherry Jones Waiver Requested: Well to any Dortion Of the DrODOSed Septic system u;grade from the wells on Lot 26 & Lot 25 Block 1 05 7~- $~E~, Criteria: 1. Geology: A. Water Table B. Soil Sorption C. Permeability D. Water Table Gradient E. Horizontal Separation TOTAL: 2. Special Conditions: Points: 3. Other: Waiver is Granted: ~ Waiver is NOT Granted: List Conditions or Reasons for above: ~6 N~6~D Name of Reviewer Rec %: 06596/3765 Amount: $ 920.00 Date Paid: 5-10-99 GT&E E~h~m'~ntel Eervlce~ In~. CT&£ Ordered B~ ]~rtnte~ Date/Time 11/18;98 12:37 CoUec~ed Date/Time 11/13:98 15:15 :Re~'eiv~ Date,Time 11~13;~8 IS:45 T~I~IcGI Dttectut: S~epllen C. lrde O.~o? c. I00 rq/L EPA 300,O 1De mx 11/16/9~ 11/16/98 Kay CT&E Environmental Services Inc. CT&E Ref.# Client Name Project Name/// Client Sample ID Matrix Ordered By PWSID Sample Remarks: 987148001 AK Water & Wastewater Consultants Inc. n/a BIRCH TREE EST. Drinking Water Client PO# Printed Date/Time 12/16/98 09:23 Collected Date/Time 12/09/98 14:10 Received Date/Time 12110198 11:40 Technical Director: Stephen C. Ede Released BYe1~ Results PGL Units AttowabLe Prep Anatysis Method Limits Date Date Init Total Cottform Nitrate-N 0 cot/lOOmL SM18 9222B 0.2?0 0.100 mg/L EPA 200.0 10 .mx 12/10/98 RMV 12/10/98 12110190 SCL NAME MAILING A O D.~ESS I dUNICIPAMTYOF ANCHORAGE DEPARTMENT OF HEALTH & ENVIRONMENTAL PROTECTION ENVIRONMENTAL ENGINEERING DIVISION S25 L Street- Anchorage, Alaska 99501 Telephone 264-4720 ON-SITE SEWAGE DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT PHONE I °r ar" LEGAL DESCRIPTION LOCATION DISTANCE TO: Foundation~.~ Total langth Material beneath tile DISTANCE TO: Weft ~ DweUing Manufacturer NO. of lin~ Length of each I'~ DISTANCE TO: DISTANCE TO: Building foundation Sewer line OTHER PIPE MATERIALS SOIL TEST RATING~ REMARKS NO. OF BEDROOMS -I PE"M,T NO. '7 NO. of compartments Liquid dep?~.~_. PERMIT N~,~- Liquid caPac. Lo/in ~llons Distance ~t~en line~ Total ,if~ti. abS~o~ area PERMIT NO. Total effective absorption.~.._ Nearest lot line PERMIT NO. D,stance to lot line ~ ~'~ I Absorption areaIsr APPROVED 72-013 (Rev. 317~/ DALLY DRILLING LOG PENN JERSEY DRILLING CO. Anchorq'e, Alaska. 99502 Dzrr~ o~, FROM ........................ FT. FROM ...................FT. FROM ....................... FT. FROM ........................ F'r,. FROM ..................... Fr. FROM. ...................... Fr. FROM ........................ Fr. FROM .......................... Fr. FROM ........................ FT, FROM .......................... FI'. FROM ........................ TO ................ FT ............... TO .................... ~ ............................... TO .................Fl' ..................................... TO ...................... r'r ..................................... TO .......................... Fl' ................................... TO ..................... Fl' ......................................... TO .......................... FI' ........................................ TO ...................... ~ ..................................... FROM ........................ Fr. TO ........................ FT ...................................... MISCL. INFORMATION: WELL 8ND ON--SITE SEWER PERMIT NO. ( 780410 ) ~0000 APPLICANT SEBRING BUILDERS INC. BOX 15406 SR8 LOCATION Ei4?TH OFF BUFFALO RD LEGAL L24 Bi BIRCH TREE ESTS SUBD LOT SIZE TYPE OF SOIL 8BSORBTION SYSTEM IS: ~R~~d UARE FEET MAXIMUM NUMBER OF BEDROOMS = 4 SOIL RATING (SO FT/BR)= ~/~ THE REQUIRED SIZE. OF~THE SOIL ABSORPTION SYSTEM IS: l~g · DEPTH= ~ LENGTH= ~ GRAVEL DEPTH= ~ THE LENGTH DIMENSION I5 THE LENGTH (IN FEET) OF THE TRENCH OR DRRINFIEL~. THE DEPTH OF R TRENCH OR PIT IS THE DISTANCE BETWEEN THE SURFACE OF THE OROUND AND THE BOTTOM OF THE E~CRVBTION (IN FEET). THERE IS NO 5ET WIDTH FOR TRENCHES. THE GRAVEL DEPTH IS T~ MINIMUM DEPTH OF GRAVEL BETWEEN THE OUTFRLL PIPE AND THE BOTT~ OF THE E~CRVRTION (IN FEET). REQU I RED SEPT I 0 TANK S I ~'E= ~!.~50 GRLLO~,IS PERMIT RPPLICRNT HAS THE RESPONSIBILITY TO INFORM THIS DEPARTMENT DURING THE INSTALLATION INSPECTIONS .OF ANY WELLS ADJACENT TO THIS PROPERTY AND THE NUMBER OF RESIDENCES THAT. THE WELL WILL SERVE. ------ TWO (2> It4SPECTIOr~S ARE REQUIRED BACKFILLING OF ANY SYSTEM WITHOUT FINAL INSPECTION AND APPROVAL BY THIS DEPARTMENT WILL BE SUBJECT TO PROSECUTION. MINIMUM DISTANCE BETWEEN A WELL AND ANY ON-SITE SEWAGE DISPOSAL SYSTEM IS i00 FEET FOR 8 PRIVATE WELL; OR 150 TO 200 PEET PROM 8 PUBLIC WELL DEPENDING UPON THE TYPE OF PUBLIC WELL WELL LOGS PRE REQUIRED 8ND MUST BE RETURNED TO THE DEPBRTMENT WITHIN 30 DAYS OF THE NELL COMPLETION. OTHER REQUIREMENTS MAY APPLY. SPECIFICATIONS 8ND CONSTRUCTION.DIAGrAMS PRE AVAILABLE TO INSURE PROPER INSTALLATION. PERM I T EXP I RES DEI:~-MBER I CERTIF~ THST l: I 8M FBMILIBR WITH THE REQUIREMENTS FOR ON-SITE SEWERS 8ND WELLS 8S SET FORTH BY THE MUNIOIPBLIT~ OF 8~R~E. ~: I WILL INST8LL THE SYSTEM IN ACCORDANCE WITH THE CODES· ~: I UNDERSTAND T~T ~HE ON-SITE SEWER SYSTEM MBY REQUIRE ENLARGEMENT IF THE RESIDENCE IS REM~ELED TO INCLUDE MORE THAN 4 BEDROOMS. V3. 2 · ..... °'%lay 25, 1978 ' H&H Ho. 851120 Sebring Builders Box 1540C SRA Anchorage, Alaska 99507 Subject: Soil Investigation for Sanitary Sewer System, Lots 24 and 25, Birchtree Estates Subdivison, Anchorage, Alaska Dear Hr. Sebring: At your request of Hay 22, 1978, we conducted.a subsurface soils investi- gation at the proposed location of the sanitary sewer system on the subject lot. The investigation complied with those procedures required by the Hunicipality of Anchorage Department of Health and Environmental Protection. This investigation, which was accomplished on Hay 24, 1978, consisted of 2 test holes drilled to depths of 20 feet below the existing ground surface. The test holes were sited according to your instructions and their locations are shown in attached Drawings A-01 and A-02. Drilling was accomplished with a rotary drill rig using continuous flight solid-stem auger with an outside diameter of 6 inches. A sample was taken at the depth shown on the soils log in Drawing A-01. The sample will be held in storage at our lab for approxi- mately six months. In addition, all material brought to the surface by the augers was continuously monitored by an experienced engineering geologist. The topography at the drilling sites is generally horizontal. At the time of the investigation the sites had original vegetation consisting of spruce and birch. The top of the test holes were located at original ground surface. The soils encountered in the bore holes are shown in the test hole logs in Drawings A-01 and A-02. These logs display specific conditions encountered at the test locations. However, subsurface conditions may vary in other parts of the lots without any apparent surficial evidence of the change. Groundwater was not encountered. Bedrock was not encountered. At the time the holes were drilled seasonal frost was not present. A percolation test was performed within bore hole number 1 at the depth sho~n in the attached Table 1. All depths were measured from the top of the hole. The data in Table I show average infiltration from the depths indicated to the bottom of the hole. The measured percolation rate was 12.5 minutes per inch. Hay 25, 1978 Sebrtn8 Builders ~age -2- We appreciated this opportunity to be of service to you. Please contact us if you have any questions concernin8 this letter or if we can be of addi- tional service. Very truly yours, R&M CONSULTANTS, II~C. ?.ynne Koslkowski Staff Geologist Jim licCaslin Brown, Ph.D. Project Hanager JHB:LK/kah TIME 2:30 2:31 2:32 2:33 2:34 2:35 2:36 2:27 2:38 2:39 2:40 '2:45 2=50 2:55 3:00 3~10 3:20 3=30 ELAPSED TIME 0 1 2 3 4 5 6 7 8 9 10 15 2O 25 3O 4O 5O 6O PERCOLATION TEST Sebring Builders R & M No. 851120 INCHES 39 39.6 39.6 39.6 39.6 39.6 39.6 40.2 40.2 40.2 40.8 40.8 41.4 42.0 42.0 42.6 43.2 43.8 ? DROP IN INCHES 0 0.6 0 0 0 0 0 0.6 0 0 0.6 0 0.6 0.6 0 0.6 0.6 0.6 4.8 12.5 Inches Total Drop Minutes Per Inch BORING NUMBER 2 Dele Completed: 5-24-'78 LOCATION SKETCH ~J 'S011. DESCRIPTION -- ~ SILTY ORGANIC MATERIAL Dark Brown, Slightly Moist, -- ~ Soft ...... 2.5' · - .~. SILT W/TRACE TO SOME GRAVEL e · Brown, Slightly Moist, Medium Dense SILTY GRAVEL W/SOMECOBBLE$ (GM) Occasional Boulder Brownish-gray, Dry, Dense ~- 147th Ave. T.H.2 O -- 50' J LOT 25 No Scale "OWN. L~*'~ · c.~ ~' 1 .............................. ~sc~u¢. see SOiL SYMBOLS J LOT 25 BIRCHTREE ESTATES SUBD. ANCHORAGE ~ ALASKA · r£B' GRID, PRO~NQ851120: · ~.DWG, NQ A-02 J · e i [.~ ~.- ORGANIC MATERIAL ""~ L,ftle V,$,ble Ice 0-10' Vx ~3~ ~Ss 72 5Z,% es.s~cf TYPICAL SOILS L~ J ~t°... a ~u~ eo~/. 20~T.D. T. $~ ru3g No Water T~le En~tered SAM~t[R TYPE SYM~S EXPLANATION Dote Completed: S01L DESCRIPTION SILTY ORGAsmIC MATERIAL Dark Brown, Dry to Slightly Moist, Soft BORING NUMBER 2.5m ~ay~ D~ Ve~ ~nse eee S~D (~) Bro~ D~.~ Dense~ ...... 17.0~ -- / / SILT W/TRACE TO SOME GRAVEL (GM) Brown, Slightly Moist, Medium Dense zo- ~ 20'T.D. No Water Table Encountered OKI1 ,(IZF':. [R&M CONSULTANTS, INC.) ~A'rE 5-25 7-a~ ~ ............................... I . SC~['Z. see 7~ SOILS LOG ~ LOCATION SKETCH No Scale -- ~.~14~h'~ve~- ~ LOT 24 90' 50' OT.H. 1 NOTE: DISTANCES SHOWN ARE APPROXIMATE ANO HAVE NOT BEEN MEASURED ~Y SURVEYING METHODS. EXPLANATION ~.~ ORGANIC MATERIAL Littls Ws~ble Ice 0~10 V~ C~$s, 72, sz I°/o, 8 §.9 i)c f I ~-etows/~'oor 8EDROCK SAMPLIFR TYPE SYMBOC$ ~ SOIL SYMBOLS I .m IC~ M~/V~ LOT 24 BIRCHTREE ESTATES SUBD.: ANCIIORAGE, ALASKA ~'B. · GRID. PROJ. NO ~].120 DWG. NO A-01 REQUEST FOR APPROVAL OF INDIVIDUAL WATER AND SEWER FACILITIES DIRECTIONS: Com~im .11 part~ o~1 ~ 1. laeem~m ~ will nm be i~eee~ed. Ft~,,e Mlow te~ (10) d~s for proee~ing. PHONE MAILING ADD~ ~ PHONE ~ SINGLE FAMILY [:] MULTIPLE FAMILY WATER BUI~LY ~___INDIVI DUAL* [::] COMMUNITY [] PUBLIC UTILITY SEWAGE OISFOSAL EY~TEM ~ INDIVIDUAL/ON-SITE** [] PUBLIC UTILITY [--I One r'l Four I'-I Two [] Five ~,.~Three r-I six Other · ATTACH WELL LOG. A vail log is required for all vails drilled sinc~ June 1976. For vails drifted prior to that date, give well depth (attach Io9 if available.} ",, 0i.,..,.,,.,,o.,.te ..7;,. If system is over two (2) years old an adequacy test4s requlrad by this Department. NOTE: THE INSPECTION FEE MUST ACCOMPANY EACH REQUEST BEFORE PROCESSING CAN BE INITIATED. 72-OLO(3/78) TIME OATE INSPECTOR DIRECTIONS: · .** THIS SIDE FOR 9FFICIAL USE ONLY DATE RECEIVED INSPECTION APPOINTMENTS 'rIME 'rlM~ DATE DATE INSPECTOR INSPECTOR 1. TYPE OF RESIDENCE [] SINGLE FAMILY [] MULTIPLE FAMILY NUMBER OF BEDROOMS [] 'oNE [] THREE [] FIVE [] TWO [] FOUR [] SIX 2, WATER SUPPLY {~ INDIVIDUAL [] COMMUNITY [] PUBLIC UTILITY Connection Verified PERMITNUMBER DEPTH OF WELL DATE DRILLED LOG RECEIVED 3. SEWAGE DISPOSAL SYSTEM [] INOI VI DUAL/ON -SITE []PUBLIC UTILITY Connection Verified []Septic Tank or [] Holdlno Tank Siz.: I~)~ gi~ diet. ions: TYPE OFTANK PERMIT NUMBER DATE INSTALLED INSTALLER If Tank is homemade SOILS RATING TOTAL ABSORPTION AREA 4, DISTANCES WELL TO: MANUFACTURER MATERIAL S~otic/HoidinoTank ]Ab~o~ti~ ~ COMMENTS [] OTHER ]Nlere~ LO~ Li~ (~ APPROVED FOR ~.~ BEDROOMS [] CONDITIONAL APPROVAL (letter must accompany cmtifica'a) I'-1 DISAPPROVED DATE LEGAL DESCRIPTION 724)10 (Rev. 3/78)