Rio Bravo Rocklin

Active WDID 5S31I002525 Lincoln, Placer County Region 5S · Central Valley (Sacramento)

At a glance

Permit Evidence: SMARTS record
Active Industrial
Notice of Intent (WDID code I) · Permits and applications
Location Evidence: facility-reported
Lincoln, Placer County
Region 5S · Central Valley (Sacramento) · Location · Statewide map
Receiving water
Sacramento River (as reported by the facility)
Evidence: candidate, awaiting review Details
Identified receiving water on the 2026 303(d) list
Not established
Shown only when the reported receiving water is identified and corroborated.
2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
None
Monitoring results Evidence: facility-reported
260 distinct results, 11 reporting years (2015 to 2025)
Most recent sample Feb 25, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
3 inspections · 4 violation records · 4 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
0 records
TMDL records

Each label shows where a statement comes from. How to read the labels.

Overview and location

Reported facility location HUC12 watershed Corroborated receiving water 2026 Integrated Report waterbodies nearby

Open this facility on the statewide map

Reported location Evidence: facility-reported

Coordinates
38.833862, -121.311777
Precision
6 decimal places
Shared point
No
Matches application record
same

Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.

Facility address
3100 Thunder Valley Court, Lincoln 95648
Regional Water Board
5S — Central Valley (Sacramento)

HUC12 watershed Evidence: spatial

  • Orchard Creek HUC12 180201610101

The facility's reported location lies within this HUC12 watershed (spatial derivation); it is not a discharge location.

Permits and applications Evidence: SMARTS record

Current permit record

Permit type
Industrial
Application type
Notice of Intent (WDID code I)
Status
Active
Operator
Rio Bravo Rocklin
Primary industry (SIC)
4911-Electric Services
Application ID
199180
NOI processed
Apr 01, 1992
Last certified
Mar 19, 2024
Facility size
50 Acres

Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
199180 IndustrialActiveApr 01, 1992 —Mar 19, 2024

Every storm water application SMARTS records for this WDID, newest first (1).

Receiving water

Reported by the facility Evidence: facility-reported
Sacramento River
Discharges directly / indirectly
N / Y (as answered in the permit application)

Evidence: not confirmed Evidence: candidate, awaiting review Awaiting review

Receiving-water text as reported by the discharger in SMARTS; no waterbody identification has been confirmed.

Why it is not confirmed (1)
  • C1 name is only a prefix of official names

7 official waterbodies share this name; none is assigned without review.

Impaired waters and TMDLs

Two kinds of information, kept apart: 2026 Integrated Report waterbodies near the reported location (geographic proximity only), and TMDL records that SMARTS lists for this facility. Neither establishes where the facility discharges; see Receiving water for the facility's own statement.

Nearby waterbodies Evidence: geographic proximity

Spatial proximity only; discharge pathway not established. Being near a waterbody does not mean the facility discharges to it.

No 2026 Integrated Report waterbody lies within the proximity threshold of the reported location.

SMARTS TMDL records Evidence: SMARTS-reported

No TMDL records for this facility in the SMARTS TMDL export.

Reported monitoring results Evidence: facility-reported

Numeric Action Level (NAL) screening is being independently validated and is not shown. Nothing on this page states whether a result exceeded a NAL.

260 distinct measurements across 4 parameters, most recent sample Feb 25, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
2025164 0 Oct 03, 2025Feb 25, 2026
2024124 0 Feb 03, 2025Feb 13, 2025
202384 0 Nov 18, 2023Dec 18, 2023
2022244 0 Nov 08, 2022Feb 24, 2023
2021244 0 Oct 22, 2021Dec 29, 2021
2020124 0 Nov 18, 2020Mar 18, 2021
201984 0 Dec 02, 2019Dec 02, 2019
2018564 0 Dec 17, 2018Feb 14, 2019
2017164 0 Nov 17, 2017Mar 22, 2018
2016444 0 Oct 16, 2016Jan 20, 2017
2015404 0 Nov 09, 2015Mar 13, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Iron, Totalmg/L65 0Nov 09, 2015Feb 25, 2026 Results
Oil and Greasemg/L65 58Nov 09, 2015Feb 25, 2026 Results
pHSU65 1Nov 09, 2015Feb 25, 2026 Results
Total Suspended Solids (TSS)mg/L65 12Nov 09, 2015Feb 25, 2026 Results

All results (260 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 25, 2026 Iron, Total .179 mg/L Effluent Qualifying Storm Event E200.7 1368883
Feb 25, 2026 Oil and Grease < 5 mg/L Effluent Qualifying Storm Event E1664A 1368883
Feb 25, 2026 pH 6.79 SU Effluent Qualifying Storm Event pH_Field 1368883
Feb 25, 2026 Total Suspended Solids (TSS) < 4 mg/L Effluent Qualifying Storm Event A2540D 1368883
Nov 14, 2025 Iron, Total .0694 mg/L Effluent Qualifying Storm Event E200.7 1358853
Nov 14, 2025 Iron, Total .266 mg/L Effluent Qualifying Storm Event E200.7 1358877
Nov 14, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1358853
Nov 14, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1358877
Nov 14, 2025 pH 6.78 SU Effluent Qualifying Storm Event pH_Field 1358853
Nov 14, 2025 pH 7.13 SU Effluent Qualifying Storm Event pH_Field 1358877
Nov 14, 2025 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 1358853
Nov 14, 2025 Total Suspended Solids (TSS) 12.4 mg/L Effluent Qualifying Storm Event A2540D 1358877
Oct 03, 2025 Iron, Total .167 mg/L Effluent Qualifying Storm Event E200.7 1355975
Oct 03, 2025 Oil and Grease 5 mg/L Effluent Qualifying Storm Event E1664A 1355975
Oct 03, 2025 pH 6.9 SU Effluent Qualifying Storm Event pH_Field 1355975
Oct 03, 2025 Total Suspended Solids (TSS) 3.1 mg/L Effluent Qualifying Storm Event A2540D 1355975
Feb 13, 2025 Iron, Total 1.58 mg/L Effluent Qualifying Storm Event E200.7 1322661
Feb 13, 2025 Iron, Total 5.59 mg/L Effluent Qualifying Storm Event E200.7 1322661
Feb 13, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1322661
Feb 13, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1322661
Feb 13, 2025 pH 7.17 SU Effluent Qualifying Storm Event pH_Field 1322661
Feb 13, 2025 pH 7.47 SU Effluent Qualifying Storm Event pH_Field 1322661
Feb 13, 2025 Total Suspended Solids (TSS) 11.3 mg/L Effluent Qualifying Storm Event A2540D 1322661
Feb 13, 2025 Total Suspended Solids (TSS) 120 mg/L Effluent Qualifying Storm Event A2540D 1322661
Feb 03, 2025 Iron, Total .0626 mg/L Effluent Qualifying Storm Event E200.7 1321268
Feb 03, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1321268
Feb 03, 2025 pH 7.38 SU Effluent Qualifying Storm Event pH_Field 1321268
Feb 03, 2025 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 1321268
Dec 18, 2023 Iron, Total 1.58 mg/L Effluent Qualifying Storm Event E200.7 1271028
Dec 18, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1271028
Dec 18, 2023 pH 7.2 SU Effluent Qualifying Storm Event pH_Field 1271028
Dec 18, 2023 Total Suspended Solids (TSS) 29.6 mg/L Effluent Qualifying Storm Event A2540D 1271028
Nov 18, 2023 Iron, Total 427 mg/L Effluent Qualifying Storm Event E200.7 1271021
Nov 18, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1271021
Nov 18, 2023 pH ND SU Effluent Qualifying Storm Event pH_Field 1271021
Nov 18, 2023 Total Suspended Solids (TSS) 11 mg/L Effluent Qualifying Storm Event A2540D 1271021
Feb 24, 2023 Iron, Total 5130 mg/L Effluent Qualifying Storm Event E200.7 1231906
Feb 24, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1231906
Feb 24, 2023 pH 7.93 SU Effluent Qualifying Storm Event pH_Field 1231906
Feb 24, 2023 Total Suspended Solids (TSS) 64 mg/L Effluent Qualifying Storm Event A2540D 1231906
Dec 30, 2022 Iron, Total 1110 mg/L Effluent Qualifying Storm Event E200.7 1221170
Dec 30, 2022 Oil and Grease 822 mg/L Effluent Qualifying Storm Event E1664A 1221170
Dec 30, 2022 pH 7.48 SU Effluent Qualifying Storm Event pH_Field 1221170
Dec 30, 2022 Total Suspended Solids (TSS) 37 mg/L Effluent Qualifying Storm Event A2540D 1221170
Dec 11, 2022 Iron, Total 2380 mg/L Effluent Qualifying Storm Event E200.7 1218948
Dec 11, 2022 Iron, Total 5470 mg/L Effluent Qualifying Storm Event E200.7 1218948
Dec 11, 2022 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1218948
Dec 11, 2022 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1218948
Dec 11, 2022 pH 6.73 SU Effluent Qualifying Storm Event pH_Field 1218948
Dec 11, 2022 pH 7.37 SU Effluent Qualifying Storm Event pH_Field 1218948

Results are shown exactly as reported by the discharger. Identical rows repeated in the State's export are shown once. Where the export contains different versions of the same sample and parameter, each version is listed and flagged. Details.

Compliance and enforcement records Evidence: SMARTS record

These are records as the State Water Board publishes them in SMARTS, with the source's own types and statuses. They are not a compliance determination or rating. A record listed here is not proof of a violation beyond what the source states, and the absence of records does not establish compliance.

Compliance and enforcement records by type
Record typeRecordsAs publishedDatesRetrievedList
Violations4 4 Violation · 0 Potential (preliminary) · 0 Dismissed Mar 24, 2005 – Oct 14, 2010 Oct 21, 2026 All violations
Enforcement actions4 4 issued · 0 draft · 0 withdrawn, rescinded or superseded Apr 28, 2005 – Oct 14, 2010 Oct 21, 2026 All actions
Inspections3inspections, not findings Mar 24, 2005 – Jan 11, 2023 Oct 21, 2026 All inspections
Annual reports11certified reports (contents not shown) 2015 – 2025 Oct 21, 2026 All reports
Water-quality-based corrective action reports0reports, by parameter — Oct 21, 2026

Each record type is counted by its own SMARTS identifier. A violation and the enforcement action that cites it are two records in two lists; they are never added together.

Chronological record history (22 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 15, 2026 Annual reports 1335986 Annual report 2025 —
Jul 09, 2025 Annual reports 1294828 Annual report 2024 —
Jul 15, 2024 Annual reports 1243945 Annual report 2023 —
Jul 13, 2023 Annual reports 1189978 Annual report 2022 —
Jan 11, 2023 Inspections 2058914 B Type compliance FinalizedAdditional Info Required
Jun 30, 2022 Annual reports 1113407 Annual report 2021 —
Jul 07, 2021 Annual reports 1069452 Annual report 2020 —
Jun 30, 2020 Annual reports 986768 Annual report 2019 —
Jul 11, 2019 Annual reports 954353 Annual report 2018 —
Nov 21, 2018 Inspections 2040595 B Type compliance —Additional Info Required
Jul 11, 2018 Annual reports 939771 Annual report 2017 —
Jun 26, 2017 Annual reports 879058 Annual report 2016 —
Jul 08, 2016 Annual reports 840363 Annual report 2015 —
Oct 14, 2010 Enforcement actions 403183 SEL (Staff Enforcement Letter) Historical
Oct 14, 2010 Violations 842921 Deficient BMP Implementation ViolationReport
May 01, 2008 Enforcement actions 347699 SEL (Staff Enforcement Letter) Historical
Jul 01, 2007 Violations 766050 Deficient BMP Implementation ViolationStorm Water Discharge
Sep 02, 2005 Enforcement actions 309908 NOV (Notice of Violation) Historical
Jul 01, 2005 Violations 432104 Deficient Report ViolationReport
Apr 28, 2005 Enforcement actions 256516 NOV (Notice of Violation) Historical
Mar 24, 2005 Inspections 338338 B Type compliance —
Mar 24, 2005 Violations 185726 Deficient BMP Implementation ViolationInspection

Sources and provenance

Sources behind this page
InformationSourceRetrieved or published
Permit, location, receiving-water textSMARTS Industrial Application Specific DataOct 20, 2026
Permit historySMARTS Storm Water ApplicationsOct 20, 2026
Monitoring resultsSMARTS Industrial Parameter DataOct 20, 2026
Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12)USGS2026-10-22
2026 California Integrated Report, Appendix A: 2026 303(d) List (final)SWRCB2026-10-22
Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0)SWRCB GIS2026-10-22
SMARTS TMDL requirementsSMARTS2026-10-21

Relationships computed 2026-10-22 with methods facility_huc12/1, proximity/1, receiving_water/2, tmdl_reference/1, waterbody_huc12_ovl/1, waterbody_huc12_pub/1; proximity threshold 1.0 km.

How to read the evidence labels

Records are shown as published and are not compliance determinations. How geographic context is derived.