Opportunity Signals

State County Signal Type Minimum Severity Search Rows Per Page

Clear

Mercury, total recoverable (2); Water level at sample collection time (1); pH (1); Specific conductance (1); Nitrogen, ammonia total [as N] (1) 5

Compliance Pressure Npdes Violations 2026-01-31

STILLWATER MINING CO EAST BOULDER MINE | Private Utility | MT / Sweet Grass

Validate the operator, engineer, and governing decision chain before outreach.

Select Brief Source Details

Solids, total suspended (24); Solids, suspended percent removal (10) 5

Compliance Pressure Npdes Violations 2025-09-30

BIG TIMBER | Private Utility | MT / Sweet Grass

Validate the operator, engineer, and governing decision chain before outreach.

Select Brief Source Details

Flow, in conduit or thru treatment plant (2); Cadmium, total [as Cd] (2); Lead, total [as Pb] (2); Silver, total [as Ag] (2); Nickel, total [as Ni] (2) 5

Compliance Pressure Npdes Violations 2024-06-30

C SHARPS ARMS COMPANY | Private Utility | MT / Sweet Grass

Validate the operator, engineer, and governing decision chain before outreach.

Select Brief Source Details

max 102; avg 76.5 4

Reporting Weakness Dmr Pattern 2026-01-31

STILLWATER MINING CO EAST BOULDER MINE | Private Utility | MT / Sweet Grass

Review reporting workflow, SCADA telemetry, and operator coverage.

Select Brief Source Details

max 1; avg 0.1 4

Reporting Weakness Dmr Pattern 2025-09-30

BIG TIMBER | Private Utility | MT / Sweet Grass

Review reporting workflow, SCADA telemetry, and operator coverage.

Select Brief Source Details

max 352; avg 352.0 4

Reporting Weakness Dmr Pattern 2024-06-30

C SHARPS ARMS COMPANY | Private Utility | MT / Sweet Grass

Review reporting workflow, SCADA telemetry, and operator coverage.

Select Brief Source Details

System scale suggests repeat O&M and documentation support opportunity (10 facilities; population 1650). 3

Operational Complexity System Scale 2026-03-28

BIG TIMBER CITY OF | Municipality | MT / Sweet Grass

Validate operator coverage, SOP maturity, and reporting load.

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System scale suggests repeat O&M and documentation support opportunity (5 facilities; population 2500). 3

Operational Complexity System Scale 2026-03-28

GREYCLIFF REST AREA EASTBOUND | Private Utility | MT / Sweet Grass

Validate operator coverage, SOP maturity, and reporting load.

Select Brief Details

rows 106; Nitrogen, total [as N] (20); Nitrogen, ammonia total [as N] (12); Nitrogen, Kjeldahl, total [as N] (12); Nitrite + Nitrate total [as N] (12); BOD, 5-day, 20 deg. C (8) 3

Reporting Weakness Dmr Pattern 2026-03-28

MDT GREYCLIFF REST AREA | Private Utility | MT / Sweet Grass

Review reporting workflow, SCADA telemetry, and operator coverage.

Select Brief Source Details

rows 128; pH (16); Mercury, total [as Hg] (8); Arsenic, total [as As] (8); Beryllium, total [as Be] (8); Cadmium, total [as Cd] (8) 3

Reporting Weakness Dmr Pattern 2026-03-28

STILLWATER MINING COMPANY | Private Utility | MT / Sweet Grass

Review reporting workflow, SCADA telemetry, and operator coverage.

Select Brief Source Details

rows 29; Phosphorus, total [as P] (6); Nitrogen, total [as N] (6); Nitrogen, Kjeldahl, total [as N] (6); Nitrite + Nitrate total [as N] (6); Fish feed used (2); days late max 7; avg 7.0 3

Reporting Weakness Dmr Pattern 2026-03-28

YELLOWSTONE RIVER HATCHERY | Private Utility | MT / Sweet Grass

Review reporting workflow, SCADA telemetry, and operator coverage.

Select Brief Source Details

303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

20504 IRB ITKIN RANCH BIG TIMBER | Private Utility | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

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303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

BIG TIMBER | Private Utility | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

Select Brief Source Details

System scale suggests repeat O&M and documentation support opportunity (6 facilities; population 150). 2

Operational Complexity System Scale 2026-03-28

CAMP ON THE BOULDER | Private Utility | MT / Sweet Grass

Validate operator coverage, SOP maturity, and reporting load.

Select Brief Details

303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

CITY OF BIG TIMBER 2017 WATEWATER SYSTEM IMPROVEMENTS | Municipality | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

Select Brief Source Details

System scale suggests repeat O&M and documentation support opportunity (7 facilities; population 175). 2

Operational Complexity System Scale 2026-03-28

CLYDEHURST CHRISTIAN RANCH | Private Utility | MT / Sweet Grass

Validate operator coverage, SOP maturity, and reporting load.

Select Brief Details

System scale suggests repeat O&M and documentation support opportunity (6 facilities; population 22). 2

Operational Complexity System Scale 2026-03-28

DEER CREEK MOBILE HOME PARK | Water System | MT / Sweet Grass

Validate operator coverage, SOP maturity, and reporting load.

Select Brief Details

303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

EVELYN HAAS - BOULDER RIVER 318 PERMIT | Private Utility | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

Select Brief Source Details

303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

FLYAWAY RANCH | Private Utility | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

Select Brief Source Details

303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

GEORGE E MATELICH - WEST DEER CREEK ROAD NO 421 | Private Utility | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

Select Brief Source Details

303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

KEN HIGGINS GREAT FALLS CREEK RANCH | Private Utility | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

Select Brief Source Details

303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

MAIN BOULDER RIVER ROAD IMPROVEMENTS | Private Utility | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

Select Brief Source Details

303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

OASIS ENVIRONMENTAL INC - EXCAVATED GROUND WATER PIT | Private Company | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

Select Brief Source Details

303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

POND AND STREAM - JOHNSON PROPERTY POND DEWATERING | Private Utility | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

Select Brief Source Details

303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

ROE CONSTRUCTION - JOHNSON RESIDENCE | Private Utility | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

Select Brief Source Details

303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

SADDLE CREEK BUTTE RANCH | Private Utility | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

Select Brief Source Details

System scale suggests repeat O&M and documentation support opportunity (12 facilities; population 64). 2

Operational Complexity System Scale 2026-03-28

SPRING CREEK CG AND TROUT RANCH | Private Utility | MT / Sweet Grass

Validate operator coverage, SOP maturity, and reporting load.

Select Brief Details

303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

SPRING CREEK RV | Private Utility | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

Select Brief Source Details

System scale suggests repeat O&M and documentation support opportunity (8 facilities; population 380). 2

Operational Complexity System Scale 2026-03-28

STILLWATER EAST BOULDER | Private Utility | MT / Sweet Grass

Validate operator coverage, SOP maturity, and reporting load.

Select Brief Details

303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

STILLWATER EXCAVATING BOULDER RIVER MDOT SWEETGRASS COUNTY 318 | County | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

Select Brief Source Details

System scale suggests repeat O&M and documentation support opportunity (7 facilities; population 60). 2

Operational Complexity System Scale 2026-03-28

STROBEL TRAILER COURT | Private Utility | MT / Sweet Grass

Validate operator coverage, SOP maturity, and reporting load.

Select Brief Details

System scale suggests repeat O&M and documentation support opportunity (6 facilities; population 63). 2

Operational Complexity System Scale 2026-03-28

TOWN PUMP BIG TIMBER SUPER 8 | Private Utility | MT / Sweet Grass

Validate operator coverage, SOP maturity, and reporting load.

Select Brief Details

System scale suggests repeat O&M and documentation support opportunity (8 facilities; population 318). 2

Operational Complexity System Scale 2026-03-28

TOWN PUMP 1033 BIG TIMBER # 2 | Private Utility | MT / Sweet Grass

Validate operator coverage, SOP maturity, and reporting load.

Select Brief Details

303(D) Listed 2

Local Intelligence Site Notes 2026-03-28

TUCKER WATER FEATURE ENHANCEMENT | Private Utility | MT / Sweet Grass

Validate whether this signal opens a service, rehab, or emergency-response angle.

Select Brief Source Details

Severity	Target Account	Signal	Found	Summary	Recommended Action
5	STILLWATER MINING CO EAST BOULDER MINE Private Utility \| MT / Sweet Grass Open target brief	Compliance Pressure Npdes Violations	2026-01-31	Mercury, total recoverable (2); Water level at sample collection time (1); pH (1); Specific conductance (1); Nitrogen, ammonia total [as N] (1) Open source	Validate the operator, engineer, and governing decision chain before outreach.
5	BIG TIMBER Private Utility \| MT / Sweet Grass Open target brief	Compliance Pressure Npdes Violations	2025-09-30	Solids, total suspended (24); Solids, suspended percent removal (10) Open source	Validate the operator, engineer, and governing decision chain before outreach.
5	C SHARPS ARMS COMPANY Private Utility \| MT / Sweet Grass Open target brief	Compliance Pressure Npdes Violations	2024-06-30	Flow, in conduit or thru treatment plant (2); Cadmium, total [as Cd] (2); Lead, total [as Pb] (2); Silver, total [as Ag] (2); Nickel, total [as Ni] (2) Open source	Validate the operator, engineer, and governing decision chain before outreach.
4	STILLWATER MINING CO EAST BOULDER MINE Private Utility \| MT / Sweet Grass Open target brief	Reporting Weakness Dmr Pattern	2026-01-31	max 102; avg 76.5 Open source	Review reporting workflow, SCADA telemetry, and operator coverage.
4	BIG TIMBER Private Utility \| MT / Sweet Grass Open target brief	Reporting Weakness Dmr Pattern	2025-09-30	max 1; avg 0.1 Open source	Review reporting workflow, SCADA telemetry, and operator coverage.
4	C SHARPS ARMS COMPANY Private Utility \| MT / Sweet Grass Open target brief	Reporting Weakness Dmr Pattern	2024-06-30	max 352; avg 352.0 Open source	Review reporting workflow, SCADA telemetry, and operator coverage.
3	BIG TIMBER CITY OF Municipality \| MT / Sweet Grass Open target brief	Operational Complexity System Scale	2026-03-28	System scale suggests repeat O&M and documentation support opportunity (10 facilities; population 1650).	Validate operator coverage, SOP maturity, and reporting load.
3	GREYCLIFF REST AREA EASTBOUND Private Utility \| MT / Sweet Grass Open target brief	Operational Complexity System Scale	2026-03-28	System scale suggests repeat O&M and documentation support opportunity (5 facilities; population 2500).	Validate operator coverage, SOP maturity, and reporting load.
3	MDT GREYCLIFF REST AREA Private Utility \| MT / Sweet Grass Open target brief	Reporting Weakness Dmr Pattern	2026-03-28	rows 106; Nitrogen, total [as N] (20); Nitrogen, ammonia total [as N] (12); Nitrogen, Kjeldahl, total [as N] (12); Nitrite + Nitrate total [as N] (12); BOD, 5-day, 20 deg. C (8) Open source	Review reporting workflow, SCADA telemetry, and operator coverage.
3	STILLWATER MINING COMPANY Private Utility \| MT / Sweet Grass Open target brief	Reporting Weakness Dmr Pattern	2026-03-28	rows 128; pH (16); Mercury, total [as Hg] (8); Arsenic, total [as As] (8); Beryllium, total [as Be] (8); Cadmium, total [as Cd] (8) Open source	Review reporting workflow, SCADA telemetry, and operator coverage.
3	YELLOWSTONE RIVER HATCHERY Private Utility \| MT / Sweet Grass Open target brief	Reporting Weakness Dmr Pattern	2026-03-28	rows 29; Phosphorus, total [as P] (6); Nitrogen, total [as N] (6); Nitrogen, Kjeldahl, total [as N] (6); Nitrite + Nitrate total [as N] (6); Fish feed used (2); days late max 7; avg 7.0 Open source	Review reporting workflow, SCADA telemetry, and operator coverage.
2	20504 IRB ITKIN RANCH BIG TIMBER Private Utility \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.
2	BIG TIMBER Private Utility \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.
2	CAMP ON THE BOULDER Private Utility \| MT / Sweet Grass Open target brief	Operational Complexity System Scale	2026-03-28	System scale suggests repeat O&M and documentation support opportunity (6 facilities; population 150).	Validate operator coverage, SOP maturity, and reporting load.
2	CITY OF BIG TIMBER 2017 WATEWATER SYSTEM IMPROVEMENTS Municipality \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.
2	CLYDEHURST CHRISTIAN RANCH Private Utility \| MT / Sweet Grass Open target brief	Operational Complexity System Scale	2026-03-28	System scale suggests repeat O&M and documentation support opportunity (7 facilities; population 175).	Validate operator coverage, SOP maturity, and reporting load.
2	DEER CREEK MOBILE HOME PARK Water System \| MT / Sweet Grass Open target brief	Operational Complexity System Scale	2026-03-28	System scale suggests repeat O&M and documentation support opportunity (6 facilities; population 22).	Validate operator coverage, SOP maturity, and reporting load.
2	EVELYN HAAS - BOULDER RIVER 318 PERMIT Private Utility \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.
2	FLYAWAY RANCH Private Utility \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.
2	GEORGE E MATELICH - WEST DEER CREEK ROAD NO 421 Private Utility \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.
2	KEN HIGGINS GREAT FALLS CREEK RANCH Private Utility \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.
2	MAIN BOULDER RIVER ROAD IMPROVEMENTS Private Utility \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.
2	OASIS ENVIRONMENTAL INC - EXCAVATED GROUND WATER PIT Private Company \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.
2	POND AND STREAM - JOHNSON PROPERTY POND DEWATERING Private Utility \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.
2	ROE CONSTRUCTION - JOHNSON RESIDENCE Private Utility \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.
2	SADDLE CREEK BUTTE RANCH Private Utility \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.
2	SPRING CREEK CG AND TROUT RANCH Private Utility \| MT / Sweet Grass Open target brief	Operational Complexity System Scale	2026-03-28	System scale suggests repeat O&M and documentation support opportunity (12 facilities; population 64).	Validate operator coverage, SOP maturity, and reporting load.
2	SPRING CREEK RV Private Utility \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.
2	STILLWATER EAST BOULDER Private Utility \| MT / Sweet Grass Open target brief	Operational Complexity System Scale	2026-03-28	System scale suggests repeat O&M and documentation support opportunity (8 facilities; population 380).	Validate operator coverage, SOP maturity, and reporting load.
2	STILLWATER EXCAVATING BOULDER RIVER MDOT SWEETGRASS COUNTY 318 County \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.
2	STROBEL TRAILER COURT Private Utility \| MT / Sweet Grass Open target brief	Operational Complexity System Scale	2026-03-28	System scale suggests repeat O&M and documentation support opportunity (7 facilities; population 60).	Validate operator coverage, SOP maturity, and reporting load.
2	TOWN PUMP BIG TIMBER SUPER 8 Private Utility \| MT / Sweet Grass Open target brief	Operational Complexity System Scale	2026-03-28	System scale suggests repeat O&M and documentation support opportunity (6 facilities; population 63).	Validate operator coverage, SOP maturity, and reporting load.
2	TOWN PUMP 1033 BIG TIMBER # 2 Private Utility \| MT / Sweet Grass Open target brief	Operational Complexity System Scale	2026-03-28	System scale suggests repeat O&M and documentation support opportunity (8 facilities; population 318).	Validate operator coverage, SOP maturity, and reporting load.
2	TUCKER WATER FEATURE ENHANCEMENT Private Utility \| MT / Sweet Grass Open target brief	Local Intelligence Site Notes	2026-03-28	303(D) Listed Open source	Validate whether this signal opens a service, rehab, or emergency-response angle.