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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
2020 Groundwater Protection
Program Factsheet / Summary

Click here for the 2018 Groundwater Protection Program Factsheet


Interactive 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 GWPP Monitoring Well Map



Groundwater Reports


Montana PFAS

Action Plan


Groundwater News

Public Meeting Notice: Noxious Weed Management Advisory Council Meeting - July 28th

Noxious Weed Management Advisory Council will meet July 28th in Phillipsburg

Public Meeting Notice: Noxious Weed Management Advisory Council Meeting - July 28th

The Montana Noxious Weed Management Advisory Council will meet on July 28, 2021 from 10:00 a.m.-5:00 p.m. in Phillipsburg, MT. An agenda will be posted soon. 

For more information, please contact Greta Dige, Noxious Weed Trust Fund Grant Coordinator, at (406) 444-7882 or Greta.Dige@mt.gov.  

 

Governor Gianforte Proclaims Noxious Weed Awareness Week

June 6 - 12, 2021 is Noxious Weed Awareness Week in Montana

Governor Gianforte Proclaims Noxious Weed Awareness Week

Governor Greg Gianforte proclaimed June 6 - 12, 2021 to be Noxious Weed Awareness Week! 

Established through a joint resolution (HJ17) during the 2021 legislative session, the first full week in June is an opportunity to highlight the important work taking place across the state to protect the integrity and productivity of Montana’s precious lands and resources from noxious weeds.

The Montana Department of Agriculture's Noxious Weed Program assists with weed identification and education, compiles annual statewide coordination reports, administers the Noxious Weed Trust Fund Grant Program, certifies forage and other materials as weed-free, and collaborates in statewide noxious weed prevention and management iniatives. Learn more at agr.mt.gov/weeds.

Documents to download

USDA Announces Cooperative Agreements for Community Compost and Food Waste Reduction

Up to $2 million available for local governments to host Community Compost and Food Waste Reduction

USDA Announces Cooperative Agreements for Community Compost and Food Waste Reduction

The U.S. Department of Agriculture (USDA) announced the availability of up to $2 million for local governments to host Community Compost and Food Waste Reduction (CCFWR) pilot projects for fiscal year 2021. The cooperative agreements support projects that develop and test strategies for planning and implementing municipal compost plans and food waste reduction plans and they are part of USDA’s broader efforts to support urban agriculture.

USDA’s Office of Urban Agriculture and Innovative Production (Office) will accept applications on Grants.gov until 11:59 p.m. Eastern Time on July 16, 2021. Projects should span two years with a start date of September 25, 2021 and completion date of September 25, 2023.

A pre-recorded webinar will provide an overview of the cooperative agreements’ purpose, project types, eligibility and basic requirements for submitting an application. The webinar and more information will be posted at farmers.gov/urban.   

Brett Heitshusen
Hydrologist

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


The Montana Mesonet

Click to view/download a full resolution of The Montana Mesonet poster, created by the Montana Climate Office for the MT American Water Resources Annual Conference – Red Lodge, MT – 9 – 10 October 2019.


Groundwater Files & Reports

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