Sacramento County Department of Airports
Active WDID 5S34I017423 Mather, Sacramento 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
- Mather, Sacramento County
- Region 5S · Central Valley (Sacramento) · Location · Statewide map
- Receiving water
- Morrison Creek (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
- 75 distinct results, 10 reporting years (2015 to 2025)
- Most recent sample Feb 17, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 2 inspections · 2 violation records · 2 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
- 38.56405, -121.30378
- Precision
- 5 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
- Mather Airport 10425 Norden 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
- Notice of Intent (WDID code I)
- Status
- Active
- Operator
- Sacramento County Department of Airports
- Primary industry (SIC)
- 4581-Airports, Flying Fields, and Airport Terminal Services
- Application ID
- 200884
- NOI processed
- Aug 13, 2002
- Last certified
- Jun 02, 2015
- Facility size
- 2750 Acres
- Impervious area
- 50 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 200884 | Industrial | Active | Aug 13, 2002 | — | Jun 02, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Morrison Creek
- 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)
- C3 facility HUC12 not corroborated
1 official waterbody shares 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.
75 distinct measurements across 18 parameters, most recent sample Feb 17, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 6 | 3 | 0 | Oct 14, 2025 | Feb 17, 2026 |
| 2024 | 6 | 3 | 0 | Dec 16, 2024 | Feb 04, 2025 |
| 2022 | 3 | 3 | 0 | Dec 27, 2022 | Dec 27, 2022 |
| 2021 | 6 | 3 | 0 | Dec 13, 2021 | Apr 14, 2022 |
| 2020 | 3 | 3 | 0 | Jan 28, 2021 | Jan 28, 2021 |
| 2019 | 6 | 3 | 0 | Dec 18, 2019 | Mar 16, 2020 |
| 2018 | 9 | 3 | 0 | Nov 21, 2018 | Mar 20, 2019 |
| 2017 | 9 | 3 | 0 | Nov 16, 2017 | Mar 01, 2018 |
| 2016 | 9 | 3 | 0 | Dec 08, 2016 | Feb 17, 2017 |
| 2015 | 18 | 18 | 0 | Jan 05, 2016 | Jan 05, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 20 | 20 | Jan 05, 2016 | Feb 17, 2026 | Results |
| pH | SU | 20 | 1 | Jan 05, 2016 | Feb 17, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 20 | 3 | Jan 05, 2016 | Feb 17, 2026 | Results |
| Ammonia, Total (as N) | mg/L | 1 | 1 | Jan 05, 2016 | Jan 05, 2016 | Results |
| Arsenic, Total | mg/L | 1 | 0 | Jan 05, 2016 | Jan 05, 2016 | Results |
| Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | mg/L | 1 | 1 | Jan 05, 2016 | Jan 05, 2016 | Results |
| Cadmium, Total | mg/L | 1 | 0 | Jan 05, 2016 | Jan 05, 2016 | Results |
| Chemical Oxygen Demand (COD) | mg/L | 1 | 0 | Jan 05, 2016 | Jan 05, 2016 | Results |
| Chromium (Total) | mg/L | 1 | 0 | Jan 05, 2016 | Jan 05, 2016 | Results |
| Copper, Total | mg/L | 1 | 0 | Jan 05, 2016 | Jan 05, 2016 | Results |
| Ethylene glycol | mg/L | 1 | 1 | Jan 05, 2016 | Jan 05, 2016 | Results |
| Iron, Total | mg/L | 1 | 0 | Jan 05, 2016 | Jan 05, 2016 | Results |
Show 6 more parameters
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Lead, Total | mg/L | 1 | 0 | Jan 05, 2016 | Jan 05, 2016 | Results |
| Magnesium, Total | mg/L | 1 | 0 | Jan 05, 2016 | Jan 05, 2016 | Results |
| Mercury, Total | ug/L | 1 | 1 | Jan 05, 2016 | Jan 05, 2016 | Results |
| Selenium, Total | mg/L | 1 | 0 | Jan 05, 2016 | Jan 05, 2016 | Results |
| Silver, Total | mg/L | 1 | 0 | Jan 05, 2016 | Jan 05, 2016 | Results |
| Zinc, Total | mg/L | 1 | 0 | Jan 05, 2016 | Jan 05, 2016 | Results |
All results (75 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 17, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1370654 | |
| Feb 17, 2026 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1370654 | |
| Feb 17, 2026 | Total Suspended Solids (TSS) | 9.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1370654 | |
| Oct 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1355083 | |
| Oct 14, 2025 | pH | 7.2 | SU | Effluent | Qualifying Storm Event | pH_Field | 1355083 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 7.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1355083 | |
| Feb 04, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1324129 | |
| Feb 04, 2025 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1324129 | |
| Feb 04, 2025 | Total Suspended Solids (TSS) | 7.7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1324129 | |
| Dec 16, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1323128 | |
| Dec 16, 2024 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1323128 | |
| Dec 16, 2024 | Total Suspended Solids (TSS) | 10 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1323128 | |
| Dec 27, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1238338 | |
| Dec 27, 2022 | pH | 7.2 | SU | Effluent | Qualifying Storm Event | pH_Field | 1238338 | |
| Dec 27, 2022 | Total Suspended Solids (TSS) | 6.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1238338 | |
| Apr 14, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1186044 | |
| Apr 14, 2022 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1186044 | |
| Apr 14, 2022 | Total Suspended Solids (TSS) | < 1.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186044 | |
| Dec 13, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1179280 | |
| Dec 13, 2021 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1179280 | |
| Dec 13, 2021 | Total Suspended Solids (TSS) | 7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1179280 | |
| Jan 28, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1153590 | |
| Jan 28, 2021 | pH | 8.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1153590 | |
| Jan 28, 2021 | Total Suspended Solids (TSS) | 15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1153590 | |
| Mar 16, 2020 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1107172 | |
| Mar 16, 2020 | pH | 8.7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1107172 | |
| Mar 16, 2020 | Total Suspended Solids (TSS) | 4.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1107172 | |
| Dec 18, 2019 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1097420 | |
| Dec 18, 2019 | pH | 8.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1097420 | |
| Dec 18, 2019 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1097420 | |
| Mar 20, 2019 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1062800 | |
| Mar 20, 2019 | pH | 8.9 | SU | Effluent | Qualifying Storm Event | A4500HB | 1062800 | |
| Mar 20, 2019 | Total Suspended Solids (TSS) | 1.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1062800 | |
| Feb 13, 2019 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | A5220B | 1062800 | |
| Feb 13, 2019 | pH | 8 | SU | Effluent | Qualifying Storm Event | A4500HB | 1062800 | |
| Feb 13, 2019 | Total Suspended Solids (TSS) | 18 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1062800 | |
| Nov 21, 2018 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1062800 | |
| Nov 21, 2018 | pH | 8.4 | SU | Effluent | Qualifying Storm Event | A4500HB | 1062800 | |
| Nov 21, 2018 | Total Suspended Solids (TSS) | 13 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1062800 | |
| Mar 01, 2018 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | A5220B | 1001643 | |
| Mar 01, 2018 | pH | 7.7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1001643 | |
| Mar 01, 2018 | Total Suspended Solids (TSS) | 7.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1001643 | |
| Jan 08, 2018 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | A5220B | 1001637 | |
| Jan 08, 2018 | pH | 7.1 | SU | Effluent | Qualifying Storm Event | A4500HB | 1001637 | |
| Jan 08, 2018 | Total Suspended Solids (TSS) | 52 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1001637 | |
| Nov 16, 2017 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | A5220B | 978857 | |
| Nov 16, 2017 | pH | 7.1 | SU | Effluent | Qualifying Storm Event | A4500HB | 978857 | |
| Nov 16, 2017 | Total Suspended Solids (TSS) | 15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 978857 | |
| Feb 17, 2017 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | A5220B | 929440 | |
| Feb 17, 2017 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 929440 |
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.
| Record type | Records | As published | Dates | Retrieved | List |
|---|---|---|---|---|---|
| Violations | 2 | 2 Violation · 0 Potential (preliminary) · 0 Dismissed | Oct 14, 2010 – Jul 16, 2024 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 2 issued · 0 draft · 0 withdrawn, rescinded or superseded | Oct 14, 2010 – Sep 09, 2024 | Oct 21, 2026 | All actions |
| Inspections | 2 | inspections, not findings | May 01, 2013 – Jun 01, 2023 | Oct 21, 2026 | All inspections |
| Annual reports | 10 | certified reports (contents not shown) | 2015 – 2025 | 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 (16 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 14, 2026 | Annual reports | 1336124 | Annual report 2025 | — | |
| Jun 24, 2025 | Annual reports | 1294975 | Annual report 2024 | — | |
| Sep 19, 2024 | Annual reports | 1244100 | Annual report 2023 | — | |
| Sep 09, 2024 | Enforcement actions | 454384 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Active | |
| Jul 16, 2024 | Violations | 890013 | Late Report | Violation | Report |
| Jun 01, 2023 | Inspections | 2060620 | B Type compliance | Finalized | No Further Action |
| Jul 19, 2022 | Annual reports | 1113593 | Annual report 2021 | — | |
| Jul 09, 2021 | Annual reports | 1069644 | Annual report 2020 | — | |
| Jul 13, 2020 | Annual reports | 986973 | Annual report 2019 | — | |
| Jul 17, 2019 | Annual reports | 954563 | Annual report 2018 | — | |
| Jun 04, 2018 | Annual reports | 939981 | Annual report 2017 | — | |
| Jun 15, 2017 | Annual reports | 879282 | Annual report 2016 | — | |
| Jul 08, 2016 | Annual reports | 840349 | Annual report 2015 | — | |
| May 01, 2013 | Inspections | 2018830 | B Type compliance | — | No Further Action |
| Oct 14, 2010 | Enforcement actions | 403157 | SEL (Staff Enforcement Letter) | Historical | |
| Oct 14, 2010 | Violations | 842900 | Deficient BMP Implementation | Violation | Report |
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.