Carbon County Montana

info@co.carbon.mt.us

17 W. 11th St, PO Box 887, Red Lodge, MT, 59068, US

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Please use our new Development Permit Package Application

https://carboncomt.seamlessdocs.com/f/CCDevelopmentPackage

I acknowledge the above information shall be included in my permit application

DO NOT USE THIS FORM. IT HAS BEEN SUPERCEDED.. PLEASE GO TO WEBSITE FOR NEW FORM.

System will be installed per approved layout or modified drawing attached.

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Please upload the site plan.

Plat or COS Click Here to Upload

Percolation Test Click Here to Upload

Soils Test Pit (8 ft. depth minimum) – applicant to provide description of following: a) Depth to seasonal groundwater (may require monitoring if applicable) b) Depth to bedrock (if applicable) c) Soil types (in accordance with DEQ Circular 4 Appendix B) d) SCS/NRCS soil data provided Click Here to Upload

USGS topo map including location of property, locations of well logs for calculating hydraulic conductivity, and location of the well where nitrate sample was obtained. Click Here to Upload

Water Sample (Nitrate Background Analysis report) Click Here to Upload

Nitrate sensitivity analysis (include hydraulic conductivity and hydraulic gradient calculations) Click Here to Upload

Phosphorous break-out determination Click Here to Upload

Lot Layout Plan: Paper sizes accepted: 8½ X 11 – 11 X 17 – applicant to provide the following details: a) Scale b) Legend c) North Arrow d) Water source (type and location ie. Well, Cistern) e) Drainfield Location (Primary Drainfield and 100% Replacement Drainfield Area) f) Slope given for drainfied area g) Dwelling location h) Mixing Zone i) Soil test pit and percolation test (if necessary) location j) Location of any streams, ditches, and any neighboring wells a. Wells, drainfields, and/or mixing zones within 100ft perimeter outside of boundaries shown. k) 100-year floodplain requirements met, and floodplain and drainages shown Click Here to Upload

Drainfield plans and specifications designed in accordance with DEQ 4 Click Here to Upload

Review Fee Calculation Checklist available at http://co.carbon.mt.us/wp-content/uploads/2016/01/Carbon-County-Sanitary-Review-Fee-Calculation-Checklist.pdf Click Here to Upload

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