Mather Aviation LLC
Active WDID 5S34NEC012397 Mather, Sacramento County Region 5S · Central Valley (Sacramento)
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- No Exposure Certification (NEC) · Permits and applications
- Location Evidence: facility-reported
- Mather, Sacramento County
- Region 5S · Central Valley (Sacramento) · Location · Statewide map
- Receiving water
- American 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
- None in the current exports
- Compliance and enforcement records Evidence: SMARTS record
- 3 inspections · 9 violation records · 11 enforcement actions
- Counts as published in SMARTS; not a compliance determination · Details
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
Reported location Evidence: facility-reported
- Coordinates
- 38.564889, -121.302387
- Precision
- 6 decimal places
- Shared point
- 3 permits report this exact point
- Matches application record
- same
Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.
- Facility address
- 10360 Macready Ave, Mather 95655
- Regional Water Board
- 5S — Central Valley (Sacramento)
HUC12 watershed Evidence: spatial
- Lake Greenhaven-Sacramento River HUC12 180201630701
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
- No Exposure Certification (NEC)
- Status
- Active
- Operator
- Mather Aviation LLC
- Primary industry (SIC)
- 4581-Airports, Flying Fields, and Airport Terminal Services
- Application ID
- 202807
- NOI processed
- Oct 01, 2004
- Last certified
- Jul 24, 2026
- Facility size
- 85000 SqFt
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 202807 | Industrial | Active | Oct 01, 2004 | — | Jul 24, 2026 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- American 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
8 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.
No industrial monitoring results for this permit are in the current exports.
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.
| Record type | Records | As published | Dates | Retrieved | List |
|---|---|---|---|---|---|
| Violations | 9 | 9 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 02, 2008 – Jul 16, 2023 | Oct 21, 2026 | All violations |
| Enforcement actions | 11 | 11 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 01, 2008 – Sep 09, 2024 | Oct 21, 2026 | All actions |
| Inspections | 3 | inspections, not findings | Jul 12, 2006 – Jun 01, 2023 | Oct 21, 2026 | All inspections |
| Annual reports | 8 | certified reports (contents not shown) | 2015 – 2022 | Oct 21, 2026 | All reports |
| Water-quality-based corrective action reports | 0 | reports, 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 (31 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Sep 10, 2024 | Annual reports | 1188441 | Annual report 2022 | — | |
| Sep 09, 2024 | Enforcement actions | 454301 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Active | |
| Jun 28, 2024 | Annual reports | 1111744 | Annual report 2021 | — | |
| Jul 16, 2023 | Violations | 889930 | Late Report | Violation | Report |
| Jun 01, 2023 | Inspections | 2060585 | B Type compliance | Finalized | Additional Info Required |
| Jul 13, 2021 | Annual reports | 1067711 | Annual report 2020 | — | |
| Jul 31, 2020 | Annual reports | 984904 | Annual report 2019 | — | |
| Jan 09, 2020 | Annual reports | 952420 | Annual report 2018 | — | |
| Nov 19, 2019 | Enforcement actions | 435551 | 2nd NNC - AR (Second Notice of Non-Compliance (annual report)) | Historical | |
| Aug 27, 2019 | Enforcement actions | 433882 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 15, 2019 | Violations | 870763 | Late Report | Violation | Report |
| Jul 12, 2018 | Annual reports | 937833 | Annual report 2017 | — | |
| Jul 18, 2017 | Annual reports | 877023 | Annual report 2016 | — | |
| Oct 28, 2016 | Enforcement actions | 425043 | 2nd NNC - AR (Second Notice of Non-Compliance (annual report)) | Historical | |
| Oct 27, 2016 | Annual reports | 840030 | Annual report 2015 | — | |
| Sep 12, 2016 | Enforcement actions | 423998 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 15, 2016 | Violations | 861070 | Late Report | Violation | Report |
| Aug 16, 2013 | Enforcement actions | 413165 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 02, 2013 | Violations | 851778 | Late Report | Violation | Report |
| May 01, 2013 | Inspections | 2018834 | B Type compliance | — | No Further Action |
| Aug 31, 2012 | Enforcement actions | 410237 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 02, 2012 | Violations | 849397 | Late Report | Violation | Report |
| Aug 24, 2011 | Enforcement actions | 407095 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 02, 2011 | Violations | 846414 | Late Report | Violation | Report |
| Aug 19, 2010 | Enforcement actions | 402524 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical |
Sources and provenance
| Information | Source | Retrieved or published |
|---|---|---|
| Permit, location, receiving-water text | SMARTS Industrial Application Specific Data | Oct 20, 2026 |
| Permit history | SMARTS Storm Water Applications | Oct 20, 2026 |
| Monitoring results | SMARTS Industrial Parameter Data | Oct 20, 2026 |
| Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12) | USGS | 2026-10-22 |
| 2026 California Integrated Report, Appendix A: 2026 303(d) List (final) | SWRCB | 2026-10-22 |
| Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0) | SWRCB GIS | 2026-10-22 |
| SMARTS TMDL requirements | SMARTS | 2026-10-21 |
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
- Evidence: SMARTS record Evidence: facility-reported Information as published in SMARTS or reported by the discharger.
- Evidence: identification corroborated The reported receiving-water name identifies one official waterbody and the facility's location is consistent with it. It does not establish a discharge pathway.
- Evidence: candidate, awaiting review Evidence: not confirmed The reported name could match one or more official waterbodies, but no identification has been confirmed; nothing is assigned without review.
- Evidence: spatial Evidence: geographic proximity Derived from the reported location only.
- Evidence: SMARTS-reported Source records whose links to official references are not yet reviewed.
- Evidence: unavailable The information could not be loaded or is not in the sources.
Records are shown as published and are not compliance determinations. How geographic context is derived.