Herbicide Tracker California

Applications

228 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
May 11, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC44Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
May 9, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC39Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
May 8, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC45Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
May 7, 2026LOMO - S 1/2
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC24Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
May 1, 2026Report WEB2620871440
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC57.5Clopyralid, monoethanolamine salt, Imazapyr, isopropylamine salt, Sulfometuron-methyl, Triclopyr, triethylamine salt
DREXEL IMAZAPYR 4SL, GARLON 3A, OUST XP HERBICIDE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Apr 30, 2026Report WEB2620871397
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC51.5Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr, triethylamine salt
GARLON 3A, OUST XP HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Apr 29, 2026Report WEB2620871302
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC24Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr, triethylamine salt
GARLON 3A, OUST XP HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Apr 28, 2026Report WEB2620871180
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC27.5Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr, triethylamine salt
GARLON 3A, OUST XP HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Apr 27, 2026Report WEB2620871122
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC6.5Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr, triethylamine salt
GARLON 3A, OUST XP HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Apr 24, 2026Report WEB2620900459
Del Norte County
N/AGREEN DIAMOND RESOURCESN/A7.3Triclopyr, triethylamine salt
GARLON 3A
Forestry / timberlandGround
Apr 24, 2026Report WEB2620900460
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry23.4Triclopyr, triethylamine salt
GARLON 3A
Forestry / timberlandGround
Apr 23, 2026Report WEB2620900458
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry15.1Triclopyr, triethylamine salt
GARLON 3A
Forestry / timberlandGround
Apr 18, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC34Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 1 tank additive
Forestry / timberlandGround
Apr 16, 2026DRIESBACH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC19.1Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 1 tank additive
Forestry / timberlandGround
Apr 13, 2026BUTTE MEADOWS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC21.3Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Apr 9, 2026Report WEB2620820110
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry20Imazapyr, isopropylamine salt
ALLIGARE IMAZAPYR 4 SL
DPR Water Protection List
Forestry / timberlandGround
Apr 9, 2026BUTTE MEADOWS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC35Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Apr 9, 2026Report WEB2620820104
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry16.5Imazapyr, isopropylamine salt
ALLIGARE IMAZAPYR 4 SL
DPR Water Protection List
Forestry / timberlandGround
Apr 9, 2026Report WEB2620820103
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry10.9Imazapyr, isopropylamine salt
ALLIGARE IMAZAPYR 4 SL
DPR Water Protection List
Forestry / timberlandGround
Apr 9, 2026SW 1/4 BUTTE MEADOWS - NE 1/4
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC36Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Apr 8, 2026Report WEB2620820094
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry17Triclopyr, butoxyethyl ester
ELEMENT 4
+ 1 tank additive
Forestry / timberlandGround
Apr 8, 2026Report WEB2620820098
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry1Triclopyr, triethylamine salt
GARLON 3A
+ 1 tank additive
Forestry / timberlandGround
Apr 8, 2026Report WEB2620820101
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry6.5Triclopyr, triethylamine salt
GARLON 3A
+ 1 tank additive
Forestry / timberlandGround
Apr 8, 2026Report WEB2620770396
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC17Imazapyr, isopropylamine salt
ALLIGARE IMAZAPYR 4 SL, CHOPPER GEN2 HERBICIDE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Apr 8, 2026SW 1/4 BUTTE MEADOWS - NE 1/4
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC20Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
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California pesticide applications by use site — page 8 · Herbicide Tracker California