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Groundwater Monitoring for Pesticides and Nitrate

The Groundwater Protection Program has two primary objectives: (1) determine whether residues of agricultural chemicals are present in groundwater, and (2) where possible, determine the likelihood of an agricultural chemical to enter groundwater.

We complete our first objective through maintaining a network of permanent monitoring wells that are sampled at least twice annually. Samples are analyzed for agricultural chemicals by the Department’s Analytical Lab. The results are maintained in a database, analyzed to identify trends, and compared with Montana Numeric Water Quality Standards in Circular DEQ-7.

For the second object, we focus on both permanent monitoring wells and short-duration regional-scaled special projects to compare detections of agricultural chemicals across an aquifer or geographic region with general water quality parameters and relevant spatial data. We attempt to identify correlations between agricultural chemical detections with the water quality parameters and spatial data to determine which parameters influence the likelihood of an agricultural chemical to enter groundwater. We then extrapolate from our monitoring points to generalize the likelihood of agricultural chemicals to enter groundwater across the study areas, based on spatial data trends.

Click here for the
2016 Groundwater Protection
Program Factsheet

 

 

ArcGIS Map Data - Historic pesticide analyte detection concentrations and well locations for the Ground Water Protection Program's Permanent Monitoring Well Network:
Click here
to view the map

 

Groundwater News

Monarchs & Milkweed: Creating Space For Pollinators presentation Wednesday, October 18 in Helena

At the Montana WILD Education Center, 2668 Broadwater Boulevard

Monarchs & Milkweed: Creating Space For Pollinators presentation Wednesday, October 18 in Helena

Monarch butterfly populations are in decline, largely due to a decline in habitat, specifically – milkweed. Join Montana WILD and the Endangered Species Coalition to create a “Monarch Waystation” by planting native milkweed around the Center. Biologist Glenn Marangelo from the Missoula Insectarium will give a short presentation on the life history and conservation status of the N. American monarch butterfly, after we create new habitat.

Click here to download the event flyer.

Department to Hold Waste Pesticide Disposal Events in September

Annual events have collected over 561,136 lbs. of waste pesticides

Department to Hold Waste Pesticide Disposal Events in September

Helena, Mont. - The Montana Department of Agriculture’s annual Pesticide Disposal Event will be held in several locations across western Montana during September. The collection events will be held September 19 in Kalispell; September 20 in Missoula; September 21 in Helena; and September 22 in Dillon​.  The annual event has collected more than 561,136 pounds of waste pesticides since it began in 1994. 

MDA launches Agriculture Fire & Drought Assistance Hotline

Resources and prgroams to help affected ag producers

MDA launches Agriculture Fire & Drought Assistance Hotline

Helena, Mont. – As drought conditions worsen and fires burn throughout the state, the Montana Department of Agriculture has launched the Agriculture Fire and Drought Assistance Hotline. The hotline will serve as a tool to help connect those affected to available resources, programs and donations, as well as to provide information on how others can help. Questions related to hay/feed donations, livestock, fencing, and transportation can be directed to the hotline. The hotline number is 1-844-515-1571 and the line will be staffed 8 am to 5 pm Monday through Friday. 

Click here for more resources, programs and links to assist those affected by fire and drought.

Christopher Kelley, PhD
Hydrologist

Phone : (406) 444-5422
E-mail : CKelley@mt.gov
Fax : (406) 444-9493
302 N Roberts
Helena, MT 59601

 

Brett Heitshusen
Environmental Science Specialist

Phone : (406) 444-3271
E-mail : BHeitshusen@mt.gov
Fax : (406) 444-9493
302 N Roberts
Helena, MT 59601

 

Groundwater Files & Reports

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