HomeMy WebLinkAbout022 - Appendix S - Request Exempt Well Letter DNRC
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October 24, 2023
Kerri Strasheim
DNRC – Bozeman Water Resources Regional Office
2273 Boothill Court, Suite 110
Bozeman, MT 59715
RE: Exempt Well Determination for Turnrow Subdivision
Dear Kerri:
I am requesting approval for 4 wells sharing 1 exempt well water right for the Turnrow Subdivision located
at the SW corner of East Valley Center Drive and Davis Lane in northwest Bozeman.
Irrigation Water Demands
The sum of the landscaped areas is 7.73 acres. The annual volume of water required to irrigate this acreage
is based on the following assumed irrigation demands:
Sod with H.E. Rotary spray Irrigation: 577,150 gallons/year
Native Seed with H.E. Rotary spray irrigation: 2,410,614 gallons/year
510 Trees with H.E. bubblers: 151,470 gallons/year
270 Shrubs with H.E. bubblers: 36,450 gallons/year
Total Use: 9.75 acre feet per year
*** The Well / Irrigation system will be zoned to ensure that demand will not exceed 35 GPM or 10-acre ft
per year.
Please find included for your review the well exhibit that will be submitted to the City of Bozeman Planning
Department.
If you have any questions or comments about this project, please feel free to contact me at 406-587-4873.
Sincerely,
Troy Scherer, PLA, ASLA
Design 5 Landscape Architecture
111 North Tracy Avenue
Bozeman, MT 59715
troy@design5la.com
O 406-587-4873
SYMBOLSIZEDESCRIPTIONIRRIGATION LEGEND*BACKFLOW PREVENTER1"BFCONNECTION POINTCPIRRIGATION SLEEVE, 4" MIN. SCH 40 PVCSEEPLANN/AWELLN/AWIRRIGATIONTYPETOTALAREA / QTYANNUALET RATETOTALANNUAL H2O25,139 SF29 IN / SF454,186 GALH.E.SPRAY IRRIG.
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217,717 SF6 IN / SF813,826 GALH.E.SPRAY IRRIG.
SEEDH.E. TREEBUBBLER65 TREES16.5 GAL /WEEK19,305 GALH.E. SHRUBDRIP IRRIG.0 SHRUBS7.5 GAL /WEEK0 GALTOTAL ANNUAL H2O REQUIRED: 1,287,317 GALTOTAL ACRE FEET PER YEAR: 3.95 ACRE FEETIRRIGATION SCHEDULE - WELL #1PROPOSED WELL TO IRRIGATE PH1 PARKIRRIGATION SCHEDULE - WELL #2PROPOSED WELL TO IRRIGATE OPEN SPACEIRRIGATIONTYPETOTALAREA / QTYANNUALET RATETOTALANNUAL H2O119,102 SF6 IN / SF445,203GALH.E.SPRAY IRRIG.
SEEDH.E. TREEBUBBLER104 TREES16.5 GAL /WEEK30,888 GALTOTAL ANNUAL H2O REQUIRED: 478,251 GALTOTAL ACRE FEET PER YEAR: 1.47 ACRE FEETH.E. SHRUBDRIP IRRIG.16 SHRUBS7.5 GAL /WEEK2,160 GALIRRIGATION SCHEDULE - WELL #3PROPOSED WELL TO IRRIGATE FUTURE PARKIRRIGATIONTYPETOTALAREA / QTYANNUALET RATETOTALANNUAL H2O202,070 SF6 IN / SF755,338 GALH.E.SPRAY IRRIG.
SEEDH.E. TREEBUBBLER252 TREES16.5 GAL /WEEK74,844 GALTOTAL ANNUAL H2O REQUIRED: 987,436 GALTOTAL ACRE FEET PER YEAR: 3.03 ACRE FEETH.E. SHRUBDRIP IRRIG.254 SHRUBS7.5 GAL /WEEK34,290 GAL6,806 SF29 IN / SF122,964 GALH.E.SPRAY IRRIG.
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SEEDH.E. TREEBUBBLER90 TREES16.5 GAL /WEEK26,730 GALTOTAL ANNUAL H2O REQUIRED: 317,916 GALTOTAL ACRE FEET PER YEAR: 0.98 ACRE FEETH.E. SHRUBDRIP IRRIG.0 SHRUBS7.5 GAL /WEEK0 GALTOTAL WELL IRRIGATION SCHEDULEIRRIGATIONTYPETOTALAREA / QTYANNUALET RATETOTALANNUAL H2O31,945 SFTOTAL29 IN / SF577,150 GALTOTALH.E.SPRAYIRRIG. SOD644,894 SFTOTAL6 IN / SF2,410,614GALTOTALH.E.SPRAYIRRIG. SEEDH.E. TREEBUBBLER510 TREESTOTAL16.5 GAL /WEEK151,470 GALTOTALH.E. SHRUBDRIP IRRIG.270 SHRUBSTOTAL7.5 GAL /WEEK36,450 GALTOTALTOTAL ANNUAL H2O REQUIRED: 3,175,684 GALTOTAL ACRE FEET PER YEAR: 9.75 ACRE FEETIrrigation WaterUse Estimate -OverallL 600design5la.com406.587.4873dateissuedrawn by:checked by:filename:z:\turnrow subdivision\autocad\01_sheets\phase 1 blvds + os sheets\l600_turnrow_sub_ph1_os_irrigation.dwg
Turnrow Subdivision
Phase 1 Boulevards & Open Space
Bozeman, Montana
KHM/HU TMS
10/24/23PH1 Prelim Plat150750300N1L6001"=150'-0"Irrigation Water Use Estimate - Overall