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Home My WebLink AboutRIVERPARK VIEW BLK 2 LT 1 RiverPark View Block 2 Lot 1 #067 - 011 - 23 MUNICIPALITY OF ANCHORAGE On-Site Water &Wastewater Program r , PO Box 196650 4700 Elmore Road • . Anchorage,Alaska 99519-6650 Phone: (907)343-7904 Fax: (907)343-7997 http:llwww.muni.orglonsite I)chartincnt 4h(MD0.pVE On-Site Water & Wastewater System Permit lt)d of C_( o--17 Permit Number: OSP171093 Effective Date: Work Type: WellSeptic Initial Expiration Date: 5/22/2018 Tax Code Number: 06701123000 Site Legal Address: RIVERPARK VIEW BLK 2 LT 1 G:0364 Site Mailing Address: 6941 CLEMENS CIR, Eagle River Owner: TROY DAVIS HOMES INC Lot Size in Sq Ft: 109985 Design Engineer: ANDERSON ENGINEERING Total Bedrooms: 4 This permit is for the construction of: El Disposal Field El Septic Tank El Holding Tank ❑ Privy El Private Well ❑ Water Storage All construction shall 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 shall notify the Development Services Department per AMC 15.65. Provide notification by calling (907) 343-7904 (24/7). 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather shall be either: a. Opened and Closed on the same day, or b. Covered, sealed, and heated to prevent freezing Special Provisions: The entire alternate subsurface disposal field is not within the 30 foot radius of the test holes (TH#7 and #8). An additional percolation test is required prior to construction of the septic field. Please submit stamped and signed percolation test results and any resulting design changes to the alternate field (if required)with the inspection report. Received By: Date: G Issued By: ?-4.W `knr� Date: 5/3 1/02o l 7 MUNICIPALITY OF ANCHORAGE Community Development Department , Phone_ 907-343-7904 Development Services Division Fax: 907-343-7997 On-Site Water & Wastewater Program \.. lifOt ON-SITE SEWERNVELL PERMIT APPLICATION 20,, MAY 2 2 Parcel I.D. 067-011-23 Troy Davis Homes Property owner(s) y Day phone `ot Mailing address 1689 S Knik Goose Bay Rd, Wasilla, AK 99654 Site address 6900 Clemens Circle Legal description (Sub'd., Block & Lot) Riverpark View Estates, Block 2 Lot 1 Legal description (Township, Range & Section) Lot Size 109,985 Sq. Ft. Number of Bedrooms 4 APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING: (®all that apply) Absorption Field ® Initial Single Family (SF) ❑X (w/wo ADU) Septic Tank Upgrade ❑ Duplex (D) ❑ Holding Tank ❑ Renewal ❑ Multiple Dwellings ❑ Privy ❑ (SF and/or D) Private Well Water Storage ❑ THIS APPLICATION INCLUDES A VARIANCE / WAIVER REQUEST FOR: Distance: I certify that the above information is correct. I further certify that this is in accordance with applicable Municipal Codes. (Si ure roperty owner or authorized agent) Permit/Rush Fees: 5 'I" 2-1S-= 7cr`-f Waiver Fees: Date of Payment: 1 2 Zi 11 Date of Payment: Receipt Number: 0(.1 c.O Gt Receipt Number: Permit No. OS Q 11 Oa-6 Waiver No. Permit App_:-:• :..c ANDERSON ENGINEERING P.O. BOX 240773 ANCHORAGE, AK 99524 522-7773 677-7766 (FAX) May 22, 2017 Municipality of Anchorage Development Services Dept- On-Site Water& Wastewater Program 4700 Elmore Rd Anchorage, AK 99507 Subject: Riverpark View Estates, Block 2 Lot 1 Septic system design and permit application Dear On-Site Services Engineer: The owner of the above lot intends to build a 4-bedroom home on the property, so we are submitting this permit application for the construction of a new well and septic system. The attached site plan identifies the location of the home as well as the proposed well, septic location and alternate site. No conflicts exist between this proposed system and any wells, whether on this lot or adjacent lots. Drainage arrows are shown on the site plan showing the grade and direction of flow. The drainage pattern in general will not be changed by the construction. The test holes placed on the lot indicate silty gravel with sand. No groundwater or bedrock was found down to 17'. The percolation rate was determined to be around 2.5 min/in. An application rate of 1.2 gpd/sf was used in the design of the absorption system. We are proposing to place a new 1250-gallon septic tank with a deep absorption trench 3' wide x 32' long x 8' effective depth. The elevation of the distribution line will be 3' below the surface for a total depth of 11'. Soil will be mounded 0.5' above the trench. A minimum of 3' of fill will be placed over the absorption trench and 4' over the septic tank. The ground surface on the lot slopes at a moderate amount, around 12-17%. Up higher on the property there are areas that approach 25%, but nothing downslope of the septic trench. The new trench will be constructed parallel to the slope as much as possible. It will be a minimum of 100' from all wells and surface water, and more than 5' away from the septic tank. The alternate site is located more than 10' away. If the system is constructed as designed, it will have no adverse impact: • On the wells in the area or those to be constructed in the future. • On existing septic systems in the area or those to be constructed in the future. • On reserve space, either surface or subsurface,4ga l is located in the area. • On drainage patterns in the area. The eaglet-alai itgeordidisuwilleaglet-a be maintained. ,• '4 4 Sincerely, s�� • "�' ,�_ 4 S. r. ....,p Benjamin Schiller, PE .i? in-125"92 • /4.e- �` \,.. \\I,,;"‘"N 44s,`.'ll\ ACCESS EMEN .., to4-- ,A\\4 4, NN __„. \ \\„13:711:11-10!: 7 ,,,, . 4 ..4_...,._____ .,___ 400 ::,„._,::::.....,....,...,,,,,,, -___, _ _, \ NN11444% - eT&E EAS v --... .\11: \....... E----7-1- , - 41111444-‘144444.41 411111(1:1 ' -: ,•••'\-. -,-, NN \"‘ _ N\` 10 ,4 +LL RADIUS • ` -----,. ) �C i ' 1 .\_\,.\1 ,....:,,...\._____,.\,\ \ \ 1 --\ * _ ,,.. 4-BEDROOM1OME '------...._ / 'N.,,.... \\.\\.„. tit 2C0 # TH#8 '' -- - N - - N ----_,. -\\ \� �� -- -Si .F ' PTIC -EN \ -' WP . : EFFEC VE D EPTI — / � NTE ,2 \- TE '\ \ L. 0' EASEMENT - t 1 1111111111k-- I1 ~ ~ 1 _ Lo �� tit 3 1 N111141111.1.-Ni- -411111"1"___• i - : 1 O' TM 4 *°�j \ 1 MICH ER50W - CONTOUR I ERVAL-Z E' 1 j 0 , 50 1100 ..\ 0.1 14;./.3 •��s FEET \ N. RIVERPARK VIEW ESTATES SUB, BLOCK 2 LOT 1 DESIGN FACTORS: SYSTEM REQUIREMENTS: 600 GPD PEAK FLOW 3' WIDE DEEP TRENCH SYSTEM PERK RATE: 2.5 MIN/IN 1250-GAL SEPTIC TANK APPLICATION RATE: 1.2 GPD/SF 600 GPD / 1.2 GPD/SF/ 8' DEEP / 2 SIDES = 31.3 LF Trench Length THEREFORE: CONSTRUCT AN ABSORPTION TRENCH 32' LONG x 3' WIDE x 8' EFFECTIVE DEPTH. FLOW LINE ELEVATION IN TRENCHES TO BE 3' BELOW ORIGINAL GROUND SURFACE. TOTAL DEPTH TO BE 11' BELOW EXISTING GROUND. PROVIDE 3' COVER OVER TRENCHES AND 4' COVER OVER SEPTIC TANK, OR INSULATION WITH 2' COVER. 6' _ } I I MITI-i 11=1 11=1 I I-I I I 1=-111=11F1 1 EjT�TI=1 2'6" I 11=1 I I-III-1 I I-1 11=1 I 1I-1 I II III1E11 1=1 11-11 FI 11-111-111-I SILT BARRIER 6" ° :ee : 0=:i:: :. ! '=•-'-•-•-'=' ='=_• 4" PERFORATED PVC (HOLES DOWN) DRAINFIELD ROCK 00::::;::::::::::::::!: ::: :•:•:•:•.:Ve_.:•;•.:•_.:Vi :.:.:.:.:f:•:•:r:.:is is is•:: i;:;i;i:i:i:i:i:i:i;•'•;•;•;i :1:1:41;:f:l:0.:0:f:�::.:.: :f.'t:i:i::;•::::::_:_:;i�is 3' - 4' TO GROUNDWATER 6' TO BEDROCK OR IMPERMEABLE LAYER TYPICAL DEEP TRENCH SECTION -''oF `��, (NO SCALE) "'�g�Q �+♦�` r 49 TH NOTES: i r, GRADE AREA OVER TRENCH TO DRAIN AWAY , 0" +1l��(, �,.. MIN 6' SEPARATION FROM BEDROCK � . Benj�nSchiller ' • MIN 4' SEPARATION FROM GROUNDWATER If9e�.s•. +�yz2592 O MIN 100' SEPARATION FROM NEARBY WELLS �Ik;F�PROFESStia.... MIN 100' SEPARATION FROM SURFACE WATER OR STREAMS AMIN g�'� MUNICIPALITY OF ANCHORAGE —,��\\, f DEVELOPMENT SERVICES DEPARTMENT r P. oF'a�,��r 4700 BRAGAW STREET ANCHORAGE, AK 99519-6650 �*. •TM 4, •*f/, 0. -" h.. i SOILS LOG - PERCOLATION TEST , ..;o- . Benj.7 Schiller LEGAL DESCRIPTION: LOT I, BLOCK 2, RIVER PARK VIEW SUB. ��'`�•.. ._2?p592p�..• �' PERFORMED FOR: TROY DAVIS HOMFS lk FESS,' DATE: 5/19/16 PROJECT No.: PARCEL ID#: TECHNICIAN: W. ROBERTS Professional Engineers Stamp: DEPTH TEST HOLE 7 (feet) 1 OB/OG SLOPE SITE PLAN 4 2 a 3 4 4 4 J 5 SEE SITE PLAN A 6 4 • 7 d 8 — . • • SILTY GRAVEL WITH SAND 9 -e :4 GM/GW 10 WAS GROUND WATER ENCOUNTERED? No IF YES @:WHAT DEPTH"' DEPTH OF WATER AFTER MONITORING: NONE 11DATE OF MONITORING: 5/29/16 12 • .° z GROSS TIME NET TIME DEPTH TO (INCHES) NET DROP 13 a DATE READING (MINUTES) (MINUTES) WATER (INCHES) 14 TEST HOLE PRESOAKED PRIOR TO TESTING: 15— 5/29 1 8:06/8:16 10 .00"/S.00" 4.00" 4 16— • 2 8:17/8:27 10 11.88"/4.88" 4.00" 3 8:28/8:38 10 1.00"/5.00" 4.00" 17 a BOH @ 17' 4 8:39/8:49 10 0.75"/4.75" 4.00" 185 8:50/9:00 10 I.00"/5.00" 4.00" 19 6 9:01/9:11 10 0.75"/4.75" 4.00" 20 PERCOLATION RATE:2•5 (MIN/INCH) PERC. HOLE DIA. 6" (INCHES) TEST RUN BETWEEN: 4 FT. and 5 FT. COMMENTS: TEST HOLE PRE SOAKED PRIOR TO TEST. MUNICIPALITY OF ANCHORAGEsem«\Nu DEVELOPMENT SERVICES DEPARTMENT iP2,kt 4700 BRAGAW STREET ANCHORAGE, AK 99519-6650 %*;•, . TH c *9 SOILS LOG - PERCOLATION TEST / oo Ben Schiller LEGAL DESCRIPTION: LOT I, BLOCK 2, RIVER PARK VIEW Sue. r��`�%rlF.........2017 ...592 .�-,��ii, PERFORMED FOR: TROY DAVIS HOMFS +,k,F�PROFESS40Np\.�+ DATE: 5/19/16 PROJECT No.: PARCEL ID#: TECHNICIAN: W. ROBERTS Professional Engineers Stamp: DEPTH TEST HOLE 8 (feet) OB/OG SLOB- SITE PLAN 1 4 2 — ° 3 — ° d 4 5 ° SEE SITE PLAN • d 6 4 - 4 7 4 • C 8 • SILTY GRAVEL WITH SAND 9 — 4 GM/GW 10 4 WAS GROUND WATER ENCOUNTERED? No IF YES @ WHAT DEPTHS S DEPTH OF WATER AFTER MONITORING: NONE I I DATE OF MONITORING: 5/29/I6 A — 12 v L GROSS TIME NET TIME DEPTH To NET DROP 1 3 DA I E READING (MINUTES) (MINUTES) WATER (INCHES) (INCHES) 14 ' TEST HOLE PRESOAKED PRIOR TO TESTING: 15 5/29 1 8:06/8:16 10 1.38"/5.13" 3.75" 4 2 8:17/8:27 10 I.50"/5.25" 3.75" 16 3 8:28/8:38 10 I.25"/5.00" 3.75" 17 ° BOH @ 17,5 4 4 8:39/8:49 10 I.25^/5.00" 3.75" 18 5 8:50/9:00 10 I.50"/5.25" n 3.75 19 6 9:01/9:11 10 1.25'75.00" 3.75" 20 PERCOLATION RATE:2•7 (MIN/INCH) PERC.HOLE DIA. 6" (INCHES) TEST RUN BETWEEN: 4 FT. and 5 FT. COMMENTS: TEST HOLE PRE SOAKED PRIOR TO TEST.