Herbicide Tracker California

Applications

420 published applications. Each row shows a reported application, with its product lines together. Separate reports are not combined into assumed projects.

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What the colours mean
California Restricted Material

A pesticide subject to California restricted-material requirements, supported by a county permit or another official source.

Federal Restricted Use

Classified by the U.S. EPA for use by, or under the direct supervision of, a certified applicator.

DPR Water Protection List

On DPR’s official Groundwater Protection List, 3 CCR section 6800, effective July 1, 2026. DPR identifies these chemicals as having the potential to pollute groundwater. This current listing is shown alongside historical application records.

View the DPR source
Environmental concern

A sourced finding about soil mobility, aquatic toxicity, runoff or persistence.

Label hazard

A product label’s DANGER or WARNING signal word, protective equipment requirement, buffer or aquatic-use restriction.

Aerial

Applied from a helicopter or aircraft. This describes the application method.

A groundwater listing is separate from restricted-material status and does not establish contamination or a violation at a particular site. An application with no flags has no recorded flag; that does not establish that it is harmless.

DateApplication / reported siteOwnerReported operator / permitteeApplicatorAcresChemicals appliedUse siteMethod
Sep 7, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC17.3Triclopyr, triethylamine salt
GARLON 3A
+ 1 tank additive
Forestry / timberlandGround
Sep 7, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC30Triclopyr, triethylamine salt
GARLON 3A
+ 1 tank additive
Forestry / timberlandGround
Sep 6, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC10Triclopyr, triethylamine salt
GARLON 3A
+ 1 tank additive
Forestry / timberlandGround
Sep 6, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC54.8Triclopyr, triethylamine salt
GARLON 3A
+ 1 tank additive
Forestry / timberlandGround
Sep 5, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC57.2Triclopyr, triethylamine salt
GARLON 3A
+ 1 tank additive
Forestry / timberlandGround
Sep 5, 2025Report WEB2520248139
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry9Triclopyr, butoxyethyl ester
ELEMENT 4
+ 1 tank additive
Forestry / timberlandGround
Sep 4, 2025Report WEB2520257552
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC3NUFARM POLARIS AC COMPLETE HERBICIDE, SUPER SPREAD MSO, VASTLANForestry / timberlandGround
Sep 4, 2025Report WEB2520248133
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry6Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr, butoxyethyl ester
ELEMENT 4, OUST XP HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Sep 4, 2025Report WEB2520248056
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry6.5Triclopyr, butoxyethyl ester
ELEMENT 4
+ 1 tank additive
Forestry / timberlandGround
Sep 4, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC60Triclopyr, triethylamine salt
GARLON 3A
+ 1 tank additive
Forestry / timberlandGround
Sep 3, 2025Report WEB2520257482
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC10.5Clopyralid, monoethanolamine salt, Imazapyr, isopropylamine salt, Triclopyr, butoxyethyl ester
ELEMENT 4, NUFARM POLARIS AC COMPLETE HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Sep 3, 2025Report WEB2520248042
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry8Triclopyr, butoxyethyl ester
ELEMENT 4
+ 1 tank additive
Forestry / timberlandGround
Sep 3, 2025Report WEB2520248035
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry4Imazapyr, isopropylamine salt
NUFARM POLARIS AC COMPLETE HERBICIDE
DPR Water Protection List
Forestry / timberlandGround
Sep 3, 2025Report WEB2520257439
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC6Imazapyr, isopropylamine salt, Triclopyr, triethylamine salt
GARLON 3A, NUFARM POLARIS AC COMPLETE HERBICIDE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Sep 3, 2025Report WEB2520257508
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC2Imazapyr, isopropylamine salt
NUFARM POLARIS AC COMPLETE HERBICIDE
DPR Water Protection List
Forestry / timberlandGround
Sep 3, 2025Report WEB2520248032
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry8Triclopyr, butoxyethyl ester
ELEMENT 4
+ 1 tank additive
Forestry / timberlandGround
Sep 2, 2025Report WEB2520248027
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry12Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr choline
OUST XP HERBICIDE, TRANSLINE, VASTLAN
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Sep 2, 2025Report WEB2520248029
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry12Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr choline
OUST XP HERBICIDE, TRANSLINE, VASTLAN
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Sep 2, 2025Report WEB2520257402
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC10.5Imazapyr, isopropylamine salt, Triclopyr, butoxyethyl ester
ELEMENT 4, NUFARM POLARIS AC COMPLETE HERBICIDE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Sep 2, 2025Report WEB2520257417
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC12Clopyralid, monoethanolamine salt, Triclopyr, butoxyethyl ester
ELEMENT 4, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Sep 1, 2025Report WEB2520257396
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC17.5Imazapyr, isopropylamine salt
NUFARM POLARIS AC COMPLETE HERBICIDE
DPR Water Protection List
Forestry / timberlandGround
Aug 29, 2025Report WEB2520230118
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC2Imazapyr, isopropylamine salt
NUFARM POLARIS AC COMPLETE HERBICIDE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Aug 29, 2025Report WEB2520230113
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC26.6Imazapyr, isopropylamine salt
NUFARM POLARIS AC COMPLETE HERBICIDE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Aug 28, 2025STRAWBERRY VALLEY CREEK
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC15Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 28, 2025Report WEB2520230106
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC25Imazapyr, isopropylamine salt
NUFARM POLARIS AC COMPLETE HERBICIDE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
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California pesticide applications by use site — page 7 · Herbicide Tracker California