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Home My WebLink AboutALPINE ACRES ESTATES LT 1ALPINE ACRES ESTATES Lot 1 #021-01 1-20 MUNICIPALITY OF ANCHORAGE On -Site Water & Wastewater Program PO Box 196650 4700 Elmore Road Anchorage, Alaska 99519-6650 Phone: (907) 343-7904 Fax: (907) 343-7997 http://www.muni.org/onsite On -Site Water & Wastewater System Permit Permit Number: OSP251047 Work Type: WellSeptic Initial Tax Code Number: 02101120000 Site Legal Address: ALPINE ACRES ESTATES LT 1 G:2842 Site Mailing Address: 12629 Glen Alps RD, Anchorage Owner: THOMAS GABRIEL Design Engineer: Thomas Gabriel This permit is for the construction of: Effective Date: Expiration Date Lot Size in Sq Ft: Total Bedrooms: 4/11/2025 4/11/2026 189050 Q Disposal Field Q Septic Tank ❑ Holding Tank ❑ Privy Q 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 Reeeive y: 77 d•ia 5 Issued By: Date: Date: LfZZI ZS ON-SITE SEPTIC/WELL PERMIT APPLICATION Parcel I.D. 021-011-20000 Phone, 907-343-7904 Property owner(s) Gabriel Thomas Day phone 907-317-8970 Mailing address 12633 Glen Alps Road, Anchorage AK 99516 Site address N/A Legal description ALPINE ACRES ESTATES, LT 1 Number of Bedrooms FIVE (5) Engineering Firm THOMAS ENGINEERING LLC. (Gabriel Thomas, PE) Building Permit Number R24-2273 Not Applicable n APPLICATION IS FOR: APPLICATION IS AN: (Z all that apply) Absorption Field 0 Initial Septic Tank E Upgrade 0 Holding Tank ❑ Renewal ❑ Privy ❑ Well RX THIS APPLICATION INCLUDES A WAIVER REQUEST FOR: Permit/Rush Fees: 462-6 Date of Payment: 3A5/Z Permit No. 7 Waiver Fees: Date of Payment: Waiver No. Distance: March 19, 2025 Municipality of Anchorage Development Services Department On -Site Water & Wastewater Section 4700 Elmore Road P.O. Box 196650 Anchorage, AK 99519-6650 Subject: Alpine Acres Estates, LOT 1 NW 1/4, Sec. 30, T. 12 N., R. 2 W., S.M. Alaska. Initial Permit for Private Well, Septic Tank and Absorption Field To Whom It May Concern: I am writing to request a permit for the construction of a new well and septic system for the proposed residence located at Alpine Acres Estates, Lot 1. The new well and septic system will service the proposed, four-bedroom, single family residence with a one -bedroom auxiliary dwelling unit (ADU). Design Calculations: Percolation Rate: 10 MIN/IN Application Rate: 0.8 GPD/SF Number of Bedrooms: 5 BR Design Flow: 750 GPD Min. Absorption Area: 938 SF Total Depth: 10.5 FT Effective Depth: 6.8 FT Width: 2 FT Minimum Length: 69 FT Design Length: 75 FT Effective Design Absorption Area: 1020 SF Septic Tank Size: 1500 gallon The system will consist of a 1500 -gallon tank with a deep trench absorption field. The absorption field will consist of one, 75 -foot -long deep trench that will contain 6.8 -feet of effective sewer rock. A reserve field with similar specifications is provided in the drawings. Topography: The topography throughout the 4.33 Acre lot varies. Generally, the western % of the lot drain southeast to northwest at approximately 20-41% with intermittent areas of lower gradient. The eastern of the lot is graded at approximately 20-30% southwest to northeast. The slope of the land in the area of the proposed absorption field is graded up to 35% southeast to northwest. The disposal field is over 100 -feet up -gradient from any slopes exceeding 46%. Provisions for steep slope disposal fields have been applied to the proposed design. Wells: Public records indicate that wells in the area are finding water between 100 and 266 feet deep. Wells are producing between 9 and 35 GPM. Considering the low density of development in this area, the proposed well should be able to provided the required flow without adversely impacting any adjacent existing wells or properties. The proposed, private water well will be located on the eastern side of the lot, over 100 feet from the proposed septic tank and absorption field locations, as well as any neighboring septic systems. The surrounding lots are also serviced by private water wells, which are also all over 100 feet from the proposed wastewater disposal system and proposed water well location. The proposed design will not conflict with any neighboring water wells or wastewater disposal systems. Septic Systems: There are no existing septic systems within 100 feet of the proposed tank and absorption fields. The proposed system will not adversely impact any of the adjacent properties. Soils: Two test holes were excavated to depths of 17 -feet (TH1) and 16.5 -feet (TH2). Bedrock was not encounter during the excavation. The soils were uniform for the full depth of the test pits consisting of silty sandy gravel. The percolation rate was measured between 10 and 3.1 minutes per inch, the more constrictive measurement was used for the design of the system. Both test holes were excavated in May, no ground water was encountered during the excavation. Both test holes were also monitored throughout the following year, including months with the highest precipitation. No ground water was observed in either of the two test holes at any point during the observation period. Surface Water: Per the Municipality of Anchorage (MOA) Wetlands Mapping database, there are no wetlands or open channels on the lot or within the vicinity of the proposed tank, absorption field or well. The installation of this proposed private well and septic system complies with MOA codes and the drainage flowing onto and off the property will not adversely affect the performance of the proposed systems, or neighboring systems. The proposed well and septic system will not change the general slope of the area nor will ponding and/or concentration of surface runoff result from this installation. Adjacent Properties.: The surrounding developed lots are serviced by private water and wastewater systems. These neighboring systems are all located over 100 -feet from the proposed well, tank and absorption fields. This proposed system will have no probable adverse impacts to adjacent properties. Waivers: None This parcel is undeveloped and has no pre-existing facilities. The proposed tank will be 1,500 -gallons, which meets the minimum tank size required for a five -bedroom residence. The proposed absorption field will be installed in an appropriate location to service all proposed structures and will be sized for a five - bedroom demand. If you have any questions, or require additional information, please let me know. Sincerely, Gabriel K. Thomas, P.E. 907-317-8970 ENALJXIE�V' " vi -- --------- ----------------- ------- 'STATE -yiL 91�EIVAY -GRAVEL: 0 LOT I ALPINEIACRES ESTATES I PROPOSED48R HOUSE ---------- -JOL, t ---------- �ROPOSM WELL POLE �RN ------ SHE{ E1 ------- - rn 71 ------------ r=--�-"TIIITYESMT.) cz4a----------- ------------ ---- - - - ------- - okp V ----------------------- (40') 17 ---------- -- -- -------- -- - ------- 40- LOT B- I J OT B 21 MACORA fipeMS- ------ ------ MACOR& MWS pp 1-j ------------- ---------------- --- ------ ----------- ---------------------- ------------ -------------------- ----------- ------- ---------- I ---------- - ----- -- ------ - --------- 49 TH ... ....... ... ...... ... ......... Gabriel Thomas '0 No.108505 J q191 14ig; PROFESSION 01 50, 10"), SCALEt"= WO FEET 102 lw A PLAN VIEW NOTES WATER AND WASTEWATER SYSTEM DEIGN C)7 T I LOT TO BE SERVICED B4 PRIVATE WATER SYSTEM. NO WELLS WITHIN1-,--ES A S T jk j 100' OF PROPOSED SYSTEM. VERIFY ti A, T - ,-18 6, 2 C -SETBACKS IN THE FIELD. ADDRESS: 12621 GLEN ALPS ROAD, ANCHORAGE, Ak 99516 2. PERFORM ALL WORK IN N40A PARCEL: 021-011-20000 ACCORDANCE WITH AMC 15. 55 AND PERMIT NO.: 15.65 AND ALL APPLICABLE STATE, GABRIEL K THONLAS, P.E. DRAWN BYG.T. LOCAL AND FEDERAL CODES AND 12633 GLENN ALPS ROAD FILE NO.: 01 REGULATIONS ANCHORAGE- AK 99516 SCALE: I"= 100' 907-317-8970 DATE: 3/19"'02-15 SHEET: Iof3 L% -41 !o / s / 34, /' S'TAi T/E L ND _- —L-— 35%// / 32°p r ' ROPOSED RESERVE SAS / 37% / %/ / D TRENCH, (1 EA) 75' a' / GONG X 6.8'ED X 2'W X 1,11.5TD 36.5 / LEANOUTS ROPO�S6D PRIMARY SAS' w 4 / / \ � / / DEEP TRENCH, (1 EA 'J5 30% / / LONG X 6.8'ED X 2' X 10.5713 L-41 100 Z--40% ONITOR,TUBES / 35/ �26 /o 1 / 4T;H#" 21JV , O/o 6.5� 29° / 14' , / PROPOSE, `-TH#1 SHOP / � 24% / -13% / / +INE CLEANOUT NSTALL DC WITHIN -1 OF TANK / '\-PROP ED 1500g/ / f/ SEPTIC K �� 8.5 ��_.... INSTALL DC WITHIN 10'0 NK",,, SEPTIC LINE PROPOSED _WATEPy, ERVICE LINE GRAVEL DRIVE)NAY / FOUNDATION CLEAN OUT / f / WITHIN 4' OF FOUNDATION 15% GRAVEL DRIVEWAY /' _ '18% NO WEA S, SURFACE WATER / OR SEPTIC, SYSTEMS WITHIV'100' °F A qs fS *49TM •. Gabriel Thomas c No 108505 �w q�, .srp . / N R0FESSIO PLAN VIEW 0' 15' 30' SCALE I 0-EET NOTES.._._.__ ---_._ _ _ _._-- _-_ _._ WATER AND WASTEWATER SYSTEM DEIGN _____ ___ _ _ _ 1 1. LOT TO BE SERVICED BY PRIVATE WATER SYSTEM. NO WELLS WITHIN 100' OF PROPOSED SYSTEM. VERIFY i SETBACKS IN THE FIELD. ADDRESS- 12625 GLEN ALPS ROAD, ANCHORAGE, AK 99516 ? PERFORM ALL WORK IN ACCORDANCE MOA PARCEL 021-011-20000 WITH ANIC 15,55 AND 15.65 AND ALI. PERMIT NO : APPLICABLE STATE, LOc..4L AND GABRIEL K THOMIAS. P.E. DRAWN BY: G.T. FEDERAL CODES AND REGULATIONS, 12633 ULENIN ALPS ROAD FILE N0.01 RESER EE FIELDSHC j FOR CLARITY, ANCHORAGE, AK 99516 SCALE: V = 40' NOT FUR INSTALLATION AT THIS TIME. ! 90? -317-3970 DATE: 3119h025 -.. ..-;.... thnmaSClh iDBC CIIl �,el naiLcoill SHEET: 2of3 0 F- D 0 z z 0 z D LL OF A 49 TH Gabriel Thomas -7 I AO 0# FESS 140TES RESERVE FIELD - NOT INSTALLED DRAIN ;p. DRAIN SECTION VIEW 4' COVER OVER SEPTIC TANK, OR 2' WITH 2" OF INSULATION DESIGN PARAMETERS NEW SEPTIC SYSTEM NO. BEDROOMS: 5 (750 GPD) TANK SIZE: 1500 GALLONS PERC RATE: 10 MPI SOIL RATING: 0.8 GPD/SF L LOT TO BE SERVICED BY PRIVATE WATER SYSTEM. NO WELLS WITHII*,f 100' OF PROPOSED SYSTEM. VERIFY SETBACKS IN THE FIELD. 2. PERFORM WORK IN ACCORDANCE WITH ALL APPLICABLE STATE, LOCAL AND FEDERAL CODES AND REGULATIONS. 3. RESERVE FIELD SHOWN ON SECTION VIEW FOR CLARITY, NOT FOR INSTALLATION AT THIS Tit\/!E, MONITOR TUBE WHERE FIELD CHANGES DIRECTION AREA REQUIRED: 938 SF SYSTEM TYPE: DEEP TRENCH - 6.8'E.D, MIN. LENGTH: 69 LF USE: I (EA) 75LF x 2' WIDE, 6.8'E.D, 10.5'T.D TOTAL EFFECTIVE AREA: 1020 SF WATER AND WASTE WATER SYSTEM DEIGNIT L 0 TE I ALP_ E,/ -`,,`_RES ESICATES ADDRESS: 12625 GLEN ALPS ROAD, ANCHORAGE, AK 99516 MOA PARCEL: 021-011-20000 PERMIT NO.: GABRIEL K THOMAS, P. E. DR -AWN BY: G.T. 12633 GLENN ALPS ROAD FILE NO.: 01 ANCHORAGE, AK 99516 SCALE: NTS 907-317-8970 17-8970 DATE: 4/10/2025 SHEET: 3 of 3 2 Municipality of Anchorage Development Services Department On -Site Water and Wastewater Section 4700 Elmore St. P.O. Box 196650 Anchorage, AK 99519-6650 www.muni.org/onsite (907) 343-7904 Soils Log - Percolation Test Performed For: Gabriel Thomas Date Performed: 05/15/2024 Legal Description: ALPINE ACRES ESTATES, LT Township, Range, Section: NW 1/4, See. 30, T. 12 K, R. 2 W., S.M. Alaska. SEAL) -- -s .......... Gabriel Thomas N V08505 Wz 1- 2- 3- (OR) Organics / Topsoil (GM) Date Gross Time Silty, Sandy WAS GROUND WATER No TH1 ENCOUNTERED? 2108 Gravel Dry 511 s Brown IF YES, AT WHAT DEPTH? N/A L 0 10 min. Depth to Water After 3 8/16" Monitoring? —DRY EP Date: 3/15/25 Test Hole (TH1) was mons o—r—eUT Froug COMMENTS Test Hole (TH1 Site Plan himhoof nrmninifnfinn Kin nrni inrl -n+- %A- ^K—t-4 :5 Reading Date Gross Time Net Time Depth to Water Net Drop TH1 05/15/24 2108 7 511 - 2118 10 min. 8 8/16" 3 8/16" 2120 5" - 2130 10 min. 8 3/16" 3 3/16" 2131 5" 2141 10 min. 8 3/16" 3 3/16" PERCOLATION RATE ;j,1 (minutes/inch) PERC HOLE DIAMETER t) -Inches TEST RUN BETWEEN 5 FT AND 6 FT as presoaked before perc. test. Test was run for over one hour. PERFORMED BY: Gabriel K. Thomas, P.E. I Gabriel K. Thomas, P. E. CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: 05/15/24 Municipality of Anchorage Development Services Department On -Site Water and Wastewater Section 4700 Elmore St. P.O. Box 196650 Anchorage, AK 99519-6650 www.muni.org/onsite (907)343-7904 Soils Log - Percolation Test Performed For: Gabriel Thomas Date Performed: 05/24/2024 Legal Description: ALPINE ACRES ESTATES, LT 1 Township, Range, Section: NW 1/4, Sec. 30, T. 12 N., R. 2 W., S.M. Alaska. TH2 3- 4- 5- 6- 7- 8- 9- 10- 11- 12- 13- 14- 15- 16- 17- 18- 19- 20 - (OR) Organics / Topsoil (GM) Silty, Sandy Gravel Dry Brown WAS GROUND WATER No ENCOUNTERED? Net Time Depth to Water s IF YES, AT WHAT DEPTH? N/A L Depth to Water After 0 Monitoring? DRY EP Date: �J/1 b/Lb Test Hole (TH2) was monitored r ugho-1071ne T011owing year, hinhr-±ct nracinitatinn Nn nrni inrt wntor wac nhearvari Site Plan M 91Mm Reading Date Gross Time Net Time Depth to Water Net Drop TH2 05/24/24 2130 - 6" - 2140 10 min. 5" lot 2140 - 6" - 2150 10 min. 5 1/16" 15/16" 2151 - 6" - 2201 10 in. 5" 1 PERCOLATION RATE 1 U (minutes/inch) PERC HOLE DIAMETER 6 -Inches TEST RUN BETWEEN 5 FT AND 6 FT COMMENTS Test Hole (TH2) was presoaked before perc. test. Test was run for over one hour. Last three readings reported Ground water monitoring tube installed on 5/25/24 PERFORMED BY: Gabriel K. Thomas P.E. I Gabriel K. Thomas P.E.CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: 05/24/24