Chico Regional Airport
Active WDID 5R04I003206 Chico, Butte County Region 5R · Central Valley (Redding)
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Chico, Butte County
- Region 5R · Central Valley (Redding) · Location · Statewide map
- Receiving water
- Sycamore 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
- 1 waterbody; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 104 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Feb 11, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 2 inspections · 4 violation records · 4 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
- 39.798823, -121.853874
- 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
- 150 Airpark Blvd, Chico 95973
- Regional Water Board
- 5R — Central Valley (Redding)
HUC12 watershed Evidence: spatial
- Sycamore Creek HUC12 180201570601
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
- Chico City
- Primary industry (SIC)
- 4512-Air Transportation, Scheduled
- Secondary SIC
- 3721-Aircraft
- Tertiary SIC
- 4581-Airports, Flying Fields, and Airport Terminal Services
- Application ID
- 197181
- NOI processed
- Apr 03, 1992
- Last certified
- May 05, 2023
- Facility size
- 925 Acres
- Impervious area
- 25 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 197181 | Industrial | Active | Apr 03, 1992 | — | May 05, 2023 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Sycamore Creek
- Discharges directly / indirectly
- N / N (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 (3)
- C2 candidate in another or unknown Regional Board
- C3 facility HUC12 not corroborated (complete published list)
- C4 candidate more than 5 km away
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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Mud Creek (Butte County) CAR5042007020080724092148 | 983 m | listed | 1 |
Waterbodies within 1.0 km of the reported facility location. Method proximity/1.
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.
104 distinct measurements across 3 parameters, most recent sample Feb 11, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 6 | 3 | 0 | Oct 03, 2025 | Feb 11, 2026 |
| 2024 | 6 | 3 | 0 | Nov 20, 2024 | Jan 03, 2025 |
| 2023 | 6 | 3 | 0 | Dec 18, 2023 | Jan 03, 2024 |
| 2022 | 6 | 3 | 0 | Sep 19, 2022 | Feb 24, 2023 |
| 2021 | 6 | 3 | 0 | Nov 09, 2021 | Mar 15, 2022 |
| 2020 | 12 | 3 | 0 | Nov 17, 2020 | Feb 11, 2021 |
| 2019 | 12 | 3 | 0 | Nov 27, 2019 | Jan 16, 2020 |
| 2018 | 12 | 3 | 0 | Nov 27, 2018 | Mar 20, 2019 |
| 2017 | 12 | 3 | 0 | Nov 08, 2017 | Mar 01, 2018 |
| 2016 | 11 | 3 | 0 | Oct 14, 2016 | Feb 16, 2017 |
| 2015 | 15 | 3 | 0 | Dec 03, 2015 | Jan 28, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| pH | SU | 35 | 0 | Dec 03, 2015 | Feb 11, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 35 | 2 | Dec 03, 2015 | Feb 11, 2026 | Results |
| Oil and Grease | mg/L | 34 | 26 | Dec 03, 2015 | Feb 11, 2026 | Results |
All results (104 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 11, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1376949 | |
| Feb 11, 2026 | pH | 7.9 | SU | Effluent | Qualifying Storm Event | pH_Field | 1376949 | |
| Feb 11, 2026 | Total Suspended Solids (TSS) | 3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1376949 | |
| Oct 03, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1376948 | |
| Oct 03, 2025 | pH | 7.7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1376948 | |
| Oct 03, 2025 | Total Suspended Solids (TSS) | 5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1376948 | |
| Jan 03, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1319477 | |
| Jan 03, 2025 | pH | 7.1 | SU | Effluent | Qualifying Storm Event | A4500HB | 1319477 | |
| Jan 03, 2025 | Total Suspended Solids (TSS) | 110 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1319477 | |
| Nov 20, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1319470 | |
| Nov 20, 2024 | pH | 7.7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1319470 | |
| Nov 20, 2024 | Total Suspended Solids (TSS) | 48.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1319470 | |
| Jan 03, 2024 | Oil and Grease | 2.02 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1288667 | |
| Jan 03, 2024 | pH | 8.2 | SU | Effluent | Qualifying Storm Event | A4500HB | 1288667 | |
| Jan 03, 2024 | Total Suspended Solids (TSS) | .6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1288667 | |
| Dec 18, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1288666 | |
| Dec 18, 2023 | pH | 7.9 | SU | Effluent | Qualifying Storm Event | A4500HB | 1288666 | |
| Dec 18, 2023 | Total Suspended Solids (TSS) | 7.45 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1288666 | |
| Feb 24, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1240983 | |
| Feb 24, 2023 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1240983 | |
| Feb 24, 2023 | Total Suspended Solids (TSS) | 92 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1240983 | |
| Sep 19, 2022 | Oil and Grease | 2.28 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1240972 | |
| Sep 19, 2022 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1240972 | |
| Sep 19, 2022 | Total Suspended Solids (TSS) | 3.14 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1240972 | |
| Mar 15, 2022 | Oil and Grease | 1.85 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1186831 | |
| Mar 15, 2022 | pH | 7.2 | SU | Effluent | Qualifying Storm Event | A4500HB | 1186831 | |
| Mar 15, 2022 | Total Suspended Solids (TSS) | 2.6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186831 | |
| Nov 09, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1186830 | |
| Nov 09, 2021 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | A4500HB | 1186830 | |
| Nov 09, 2021 | Total Suspended Solids (TSS) | 9.15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186830 | |
| Feb 11, 2021 | Oil and Grease | 2.26 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1146733 | |
| Feb 11, 2021 | pH | 8.3 | SU | Effluent | Qualifying Storm Event | A4500HB | 1146733 | |
| Feb 11, 2021 | Total Suspended Solids (TSS) | 14.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1146733 | |
| Jan 04, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1146728 | |
| Jan 04, 2021 | pH | 7.2 | SU | Effluent | Qualifying Storm Event | A4500HB | 1146728 | |
| Jan 04, 2021 | Total Suspended Solids (TSS) | 11.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1146728 | |
| Dec 17, 2020 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1146724 | |
| Dec 17, 2020 | pH | 8.1 | SU | Effluent | Qualifying Storm Event | A4500HB | 1146724 | |
| Dec 17, 2020 | Total Suspended Solids (TSS) | 3.46 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1146724 | |
| Nov 17, 2020 | Oil and Grease | 3.49 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1146715 | |
| Nov 17, 2020 | pH | 7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1146715 | |
| Nov 17, 2020 | Total Suspended Solids (TSS) | 28.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1146715 | |
| Jan 16, 2020 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1101213 | |
| Jan 16, 2020 | pH | 7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1101213 | |
| Jan 16, 2020 | Total Suspended Solids (TSS) | 25.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1101213 | |
| Jan 09, 2020 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1101212 | |
| Jan 09, 2020 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1101212 | |
| Jan 09, 2020 | Total Suspended Solids (TSS) | 3.14 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1101212 | |
| Dec 12, 2019 | Oil and Grease | 3.52 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1101210 | |
| Dec 12, 2019 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1101210 |
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 | 4 | 4 Violation · 0 Potential (preliminary) · 0 Dismissed | Jun 30, 1998 – Jul 15, 2016 | Oct 21, 2026 | All violations |
| Enforcement actions | 4 | 4 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 24, 2004 – Oct 19, 2016 | Oct 21, 2026 | All actions |
| Inspections | 2 | inspections, not findings | Aug 08, 2002 – Sep 24, 2009 | Oct 21, 2026 | All inspections |
| Annual reports | 11 | 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 (21 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 13, 2026 | Annual reports | 1335088 | Annual report 2025 | — | |
| Jul 02, 2025 | Annual reports | 1293888 | Annual report 2024 | — | |
| Jul 12, 2024 | Annual reports | 1242960 | Annual report 2023 | — | |
| Jul 10, 2023 | Annual reports | 1188949 | Annual report 2022 | — | |
| Jul 12, 2022 | Annual reports | 1112295 | Annual report 2021 | — | |
| Jul 08, 2021 | Annual reports | 1068293 | Annual report 2020 | — | |
| Jul 13, 2020 | Annual reports | 985525 | Annual report 2019 | — | |
| Jul 11, 2019 | Annual reports | 953063 | Annual report 2018 | — | |
| Jun 18, 2018 | Annual reports | 938478 | Annual report 2017 | — | |
| Jun 06, 2017 | Annual reports | 877698 | Annual report 2016 | — | |
| Oct 19, 2016 | Enforcement actions | 424982 | SEL (Staff Enforcement Letter) | Active | |
| Jul 19, 2016 | Annual reports | 840712 | Annual report 2015 | — | |
| Jul 15, 2016 | Violations | 862072 | Deficient Report | Violation | Report |
| Dec 15, 2009 | Enforcement actions | 401478 | SEL (Staff Enforcement Letter) | Historical | |
| Sep 24, 2009 | Inspections | 2007191 | B Type compliance | — | No Further Action |
| Aug 15, 2007 | Enforcement actions | 330611 | NNC (Notice of Non-Compliance) | Historical | |
| Jul 01, 2007 | Violations | 618766 | Late Report | Violation | Report |
| Aug 24, 2004 | Enforcement actions | 255270 | SEL (Staff Enforcement Letter) | Historical | |
| Jul 01, 2004 | Violations | 261889 | Deficient BMP Implementation | Violation | Inspection |
| Aug 08, 2002 | Inspections | 326410 | B Type compliance | — | |
| Jun 30, 1998 | Violations | 146761 | Late Report | Violation | Internal 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.