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DNRC Headquarters
1539 Eleventh Ave. Helena, MT 59601
Phone: (406) 444-2074 | Fax: (406) 444-2684
Questions? Email us

Inventory / Monitoring


Baseline water quality monitoring is important to landowners to gain an understanding of their quality and quantity of water.  Monitoring helps landowners make better decisions for future water use and helps guard water against future potential impacts and also provide data for future compensation claims.

1. Site Inventory Manual 2014

2. Site Inventory Sheet.MBMG

3. Well Inventory Questions

4 .Parameter Sheet For Well Owner

5. Monitoring Kit Locations


Dissolved Methane Concentrations

“…, the U.S. Department of the Interior, Office of Surface Mining (Eltschlager and others, 2001) recommends the following:

  • Owners of wells with dissolved methane concentrations greater than 28 mg/L should immediately contact their county health department to obtain assistance and guidance in venting the wellhead and for other possible remediation alternatives.
  • Owners of wells with methane concentrations greater than 10 mg/L but less than 28 mg/L may also wish to contact their local county health department for further assistance and consider removing potential ignition sources from the immediate area.
  • Methane concentrations less than 10 mg/L require no action, other than periodic monitoring to see if methane concentrations are changing.”

Source: http://www.in.gov/isdh/files/OGMethaneInWellWater_(2).pdf

LeAnna Johnson, past CBMPA Program Coordinator, using bleach on cloth to kill bacteria on steel tape being withdrawn from water well, Little Beaver County Conservation District, Montana. 11.08.2012. Photo Stacy Hendricks.

Testing pumped water well at stock tank - Device installed to minimize gas loss ( 9 mg/l methane 8.31.015), Powder River County Conservation District, Montana. 07.27.2015. 3 of 4. Photo by Don Sasse, CBMPA Program Coordinator.

Testing for methane in pumped water well at stock tank, Powder River County Conservation District, Montana. 07.27.2015. Photo by Don Sasse, CBMPA Program Coordinator.

Nitrate strip test, Wibaux County Conservation District, Montana, 06.13.2013. Photo by LeAnna Johnson, past CBMPA Program Coordinator. 

Well located within old blue car - open door to access well casing. Little Beaver County Conservation District, Montana, 05.28.2014. Photo by LeAnna Johnson, past CBMPA Program Coordinator.

Visual evidence flowing well once flowed. Note stock tank, cattle trails to tank, and sodium killed vegetation from overflow water. Source Google Earth Pro.  2 of 2. Image labeled by Don Sasse, CBMPA Program Coordinator.

CARDD News

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Available Grants and Loans

May 04, 2017

Results from Groundwater Sampling in Areas of Oil and Gas Development

Jun 21, 2017

Governors Budget Books 2018-2019: RRGL & RDGP Program Information and Application Summaries

Renewable Resource Grant and Loan Program & Reclamation and Development Grant ProgramNov 15, 2016

2016 Statewide Water and Wastewater Rate Study

Apr 01, 2016
CARDD News - More…