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HomeMy WebLinkAboutALASKA CEDAR S12648Onsite File A Ah An AM Al*nSkA&a t t 2022 ALASKA CEDAR SUBDIVISION zffez-• • Municipality of Anchorage Development Services Department On -Site Water and Wastewater Section 4700 Elmore Road, Anchorage, AK 99507 Attn: Deb Wockenfuss, 907-343-8301 Max Schillinger, PLS PE, Manager LAll Points North LLC L PO BOX 4207 1 17600 E Rambling Road, P I N T S Palmer, AK 99645 1 P: 907-355-4185 ORTHmax@allpointsnorth.us Q H . ....... ........ led 04A.... 1 / 'MAXA.SCHILLINGER.- No. 12956 ... Aw PROFESS0k�� Dated: 3-21-2022 BACKGROUND All Points North LLC is providing civil engineering and land surveying services to the owners of Lot 8, U.S. Survey Number 3042. The owners goal is to subdivide their land into 4 residential lots. The subdivision name will be Alaska Cedar Subdivision. The lot is Located along northerly side Hottentot Mine Road between the Alyeska Highway and Sproat Roads, Girdwood Alaska. This aquifer study is made for the purpose of reasonably assessing if adequate onsite water is available for the 4 lots, namely by having four individual new wells. The property information is as follows: Subdivision Project #512648 Tax Account: 075-092-39-000 Zone: GR1 (Girdwood Residential) Grid: SE 4913 Drain Map: SE 5013 Current Use: Vacant Land APPLICABLE DESIGN STANDARDS: The following well location standards are required and/or recommended for well feasibility and maintenance: 25' Well to Sewer Lateral (MOA Required) 75' Well to Sewer Main Line, and other sources of polution (MOA (Required) -- - 100' Well to Sewer Manhole (MOA Required) 10' Water Well to Property line (Recommended by APN / DEC for easy maintenance) Maintainable location, away from other ug utilities and easements (APN Recommended) The following well production needs are estimated and assumed. Assuming every new residence is a 3 bedroom, with two persons a day each using 75 gallons/day, 450 gallons per day would be needed, or 0.315 gallons per minute continuous. Note this doesn't account for peak usage that occurs typically during several hours in the morning and evening. Assuming daily usage occurs over 3 hours a day -> 24hrs/3hrs*0.315 = -i2.5 gallons a minute minimum recommended for no in-house storage tank. PROVIDED WITH THIS SITE On the attached map, with all the above listed setbacks applied, there exists enough space for four required well locations, one on each lot. No shared wells are required. From the neighboring well logs of other U.S. Survey 3042 Lots, the following is known: Lot Well Depth Well Production Lot 7a 52'+ 6.3 gpm Lot 7b 97' 15 gpm Lot 9 151 & 163' 20 gpm+ Lot 10 NW4 166' 3.9 gpm Lot 10 S2 72' 7.1 gpm Lot 97A3 181' 30 gpm CONCLUSION Alaska Cedar Subdivision, as proposed, allows adequate space for 4 new wells. Furthermore, the wells should have adequate aquifer production to allow 3 bedroom residences. Please contact me should additional information be needed. Sincerely, Max A. Schillinger; PLS, PE, 9-15-2021 Wockenfuss, Deborah M. From: Max Schillinger <max@allpointsnorth.us> Sent: Friday, April 1, 2022 2:04 PM To: Wockenfuss, Deborah M. Subject: RE: 512648 Alaska Cedar.docx Follow Up Flag: Follow up Flag Status: Flagged [EXTERNAL EMAIL] Deb, Awwu says both 9a and 9b have muni sewer service, no septic fields to worry about. Please feel free to mark the map that fact as you see fit. Max From: Wockenfuss, Deborah M.[mailto:deborah.wockenfuss@anchorageak.gov] Sent: Wednesday, March 23, 2022 9:44 AM To: Max Schillinger <max@allpointsnorth.us> Cc: Shannon Bowman <shannonbowman@hotmail.com> Subject: S12648 Alaska Cedar.docx Attached are comments for the Alaska Cedar Subdivision submittal. If you have any questions feel free to contact me. Deb Wockenfuss Onsite Water and Wastewater Municipality of Anchorage 343-7906 1 Indicate North r W J _ _ Q a� U a CO O c v r o 0 0 J c c U J 4- 0 U O '- v CO o - J fi F- 3 of oLLI J -- U r O `f a z 0 o W W � CO A } z J o zT TpT M f M TZ $ ' E edt' i`L97A-3 / �� / O WELL / PROPERTY INFORMATION CP#107 , / LOT 9A / / N PROPERTY INFORMATION: / FOUND REBAR LARSON SUB. Tax Account: 075-092-39-000 YPC L ANTECH / / Zone: GR1 (Girdwood Residential) / Plat No. 2021-96 / / Grid: SE 4913 LOT 913 Drain Map: SE 5013 LARSON SUB. / Current Use: Vacant Land / / Current Lot Size: 1.492 Acres / PLAT No. 96-77 / 18" C P CULVERT Plat No. 2021-96 / / Legal Description: Lot 8 U.S. Survey 3042 / ry POTENTIAL rF�Fp� 19,9 / Y , F/O -'3' (S OVERHEAD UTILITIES / / WELL SETBACKS: / N WELL "F q"p e� \ 6 323 / / SS 25' Well to Sewer Lateral j Q �I � LOCATION ECTR/c \ \ s" F WELL a / �/ 75' Well to Sewer Main Line / Jy O EASeM - 32$>3, O / 4V 100' Well to Sewer Manhole 30' DRAINAGE EASEMENT / 4// / SEWER SETBACKS: LOT 97A-5 LOT 2 j /� 5' Sewer to Property Line Q 'Z -M' to 10' SHARED ACCESS EASEMENT 0.49 Acres / 15' to Fire Hydrant or Power Pole 3 10' SHARED ACCESS EASEMENT 21136 Sq. Feet CO •^' ��� POTENTIAL x\'73 00. PEDESTAL � % \ `_ \� 6j3239 \�\ ry 0 WELL LOCATION����\ 4t/ POTENTIAL \� \ �\�� LOT 8 FOUND IRON ROD \ CP#102 / M ��` � \ � � �� PROPOSED 4"SEWER LATERALS / O L O WELL Min 25' Lateral to Well LOCATION LOT 1 LOT 0.42 Acres \�� �\ 0.34 Acres / / / r .r 1ass7s Feet �V / a ,� ; PLAN SCALE: 1" = 50 Feet (11"x17" sheet) \ 18152 Sq. Feet /%� 30' q. / `\� 6 6'/ \`/ \\ al N/ Co / 0' 25' 50' 75' FOUND PQSS\ \\ \\ 0' DRAINAGE EASEMENT / ; CMP CULVERT 3239 -��� / fit" /' VICINITY MAP SCALE: 1 1 MILE \ \ Doc PROPOSED 4" SEWER LATERALS�C / '06 8 YIELD SIGN i/ �. Co \` �4i 4 ,°, 2020 °° N o ��s 3 U.S. S. 304L�� I;/' �- - SSMH O r Muni Sta.35+90 g4' FgSM�808`0 `� j /& POTENT! AL \��/ ;� •/ - �," Gf r� -_ �q z WELL i3524 s f" s' co \ LOCATION �/C\j c � THIS PLAT co iN 6jS 239' 2 0� 6' 6'� -<ND. REBARGrld / F >o ryp,Ogc: OrTc ' w� 0 32684' �� LOT 4 Ytasa7z — �� .� /' / - 3 ya. r / \ E PEDESTALS �/o Fk/ST/" 0 L,h4jS�') R' 4.00, \ \ 0.25 Acres A • m� �,`� ,. ��s°°ri r �{ ay _ `j a2S T,_ :� �� c ° RO O �' O/' R / 11002 Sq. Feel qo �%/�F {� 2 / o Q 1 od i LOT 96A � 10600— Q SwSOOVERHEAD UTILITIES 11Qi