Midway City Sanitary Dist
Active WDID 8 30I005637 Westminster, Orange County Region 8 · Santa Ana
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Westminster, Orange County
- Region 8 · Santa Ana · Location · Statewide map
- 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; 0 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 180 distinct results, 9 reporting years (2015 to 2025)
- Most recent sample Dec 31, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 5 violation records · 5 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
- 33.75283, -117.99404
- 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
- 14451 Cedarwood Ave, Westminster 92683
- Regional Water Board
- 8 — Santa Ana
HUC12 watershed Evidence: spatial
- Anaheim Bay HUC12 180702010001
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
- Midway City Sanitation Dist
- Primary industry (SIC)
- 4212-Local Trucking Without Storage
- Secondary SIC
- 4952-Sewerage Systems
- Application ID
- 208541
- NOI processed
- May 31, 1992
- Last certified
- Feb 25, 2015
- Facility size
- 3 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 208541 | Industrial | Active | May 31, 1992 | — | Feb 25, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Westminster Channel
- Discharges directly / indirectly
- N / Y (as answered in the permit application)
Evidence: not confirmed Not matchable to a single waterbody
Receiving-water text as reported by the discharger in SMARTS; no waterbody identification has been confirmed.
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 |
|---|---|---|---|
| Westminister Channel CAR8011100020110817220948 | 400 m | not listed | 0 |
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.
180 distinct measurements across 3 parameters, most recent sample Dec 31, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 18 | 3 | 0 | Oct 14, 2025 | Dec 31, 2025 |
| 2024 | 9 | 3 | 0 | Feb 13, 2025 | Feb 13, 2025 |
| 2021 | 20 | 3 | 4 | Dec 23, 2021 | Mar 28, 2022 |
| 2020 | 18 | 3 | 0 | Dec 28, 2020 | Mar 03, 2021 |
| 2019 | 18 | 3 | 0 | Nov 20, 2019 | Mar 12, 2020 |
| 2018 | 18 | 3 | 0 | Nov 29, 2018 | Jan 14, 2019 |
| 2017 | 9 | 3 | 0 | Jan 09, 2018 | Jan 09, 2018 |
| 2016 | 36 | 3 | 0 | Oct 17, 2016 | Jan 05, 2017 |
| 2015 | 36 | 3 | 0 | Sep 15, 2015 | Feb 18, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 60 | 34 | Sep 15, 2015 | Dec 31, 2025 | Results |
| pH | SU | 60 | 0 | Sep 15, 2015 | Dec 31, 2025 | Results |
| Total Suspended Solids (TSS) | mg/L | 60 | 1 | Sep 15, 2015 | Dec 31, 2025 | Results |
All results (182 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Dec 31, 2025 | Oil and Grease | 3.1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1364676 | |
| Dec 31, 2025 | Oil and Grease | ND 1.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1364676 | |
| Dec 31, 2025 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1364676 | |
| Dec 31, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1364676 | |
| Dec 31, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1364676 | |
| Dec 31, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1364676 | |
| Dec 31, 2025 | Total Suspended Solids (TSS) | 4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1364676 | |
| Dec 31, 2025 | Total Suspended Solids (TSS) | ND 1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1364676 | |
| Dec 31, 2025 | Total Suspended Solids (TSS) | 10 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1364676 | |
| Oct 14, 2025 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1354599 | |
| Oct 14, 2025 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1354599 | |
| Oct 14, 2025 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1354599 | |
| Oct 14, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1354599 | |
| Oct 14, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1354599 | |
| Oct 14, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1354599 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 7.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1354599 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 56 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1354599 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 4.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1354599 | |
| Feb 13, 2025 | Oil and Grease | 5.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1325151 | |
| Feb 13, 2025 | Oil and Grease | 2.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1325151 | |
| Feb 13, 2025 | Oil and Grease | 2.3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1325151 | |
| Feb 13, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1325151 | |
| Feb 13, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1325151 | |
| Feb 13, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1325151 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 38 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1325151 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 150 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1325151 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 220 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1325151 | |
| Mar 28, 2022 | Oil and Grease | 5.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1182258 | |
| Mar 28, 2022 | Oil and Grease | 4.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1182258 | |
| Mar 28, 2022 | Oil and Grease | 6.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1182258 | |
| Mar 28, 2022 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1182258 | |
| Mar 28, 2022 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1182258 | |
| Mar 28, 2022 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1182258 | |
| Mar 28, 2022 | Total Suspended Solids (TSS) | 12 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1182258 | |
| Mar 28, 2022 | Total Suspended Solids (TSS) | 28 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1182258 | |
| Mar 28, 2022 | Total Suspended Solids (TSS) | 13 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1182258 | |
| Dec 23, 2021 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1176538 | |
| Dec 23, 2021 | Oil and Grease | 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1176538 | |
| Dec 23, 2021 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1176538 | |
| Dec 23, 2021 | pH | 9.57 | SU | Effluent | Qualifying Storm Event | A4500HB | 1176538 | 2 versions |
| Dec 23, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1176538 | 2 versions |
| Dec 23, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1176538 | |
| Dec 23, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1176538 | 2 versions |
| Dec 23, 2021 | pH | 7.54 | SU | Effluent | Qualifying Storm Event | A4500HB | 1176538 | 2 versions |
| Dec 23, 2021 | Total Suspended Solids (TSS) | 45 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1176538 | |
| Dec 23, 2021 | Total Suspended Solids (TSS) | 37 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1176538 | |
| Dec 23, 2021 | Total Suspended Solids (TSS) | 32 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1176538 | |
| Mar 03, 2021 | Oil and Grease | 2.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1146879 | |
| Mar 03, 2021 | Oil and Grease | 3.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1146879 | |
| Mar 03, 2021 | Oil and Grease | 3.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1146879 |
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 | 5 | 5 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 02, 1999 – Jan 15, 2015 | Oct 21, 2026 | All violations |
| Enforcement actions | 5 | 4 issued · 0 draft · 1 withdrawn, rescinded or superseded | Jul 17, 2001 – Jan 15, 2015 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Jun 25, 2002 – Jun 25, 2002 | 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 (22 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jun 15, 2026 | Annual reports | 1335389 | Annual report 2025 | — | |
| Jun 23, 2025 | Annual reports | 1294202 | Annual report 2024 | — | |
| Jun 13, 2024 | Annual reports | 1243288 | Annual report 2023 | — | |
| Jun 12, 2023 | Annual reports | 1189291 | Annual report 2022 | — | |
| Jun 10, 2022 | Annual reports | 1112668 | Annual report 2021 | — | |
| Jul 08, 2021 | Annual reports | 1068678 | Annual report 2020 | — | |
| Jun 18, 2020 | Annual reports | 985938 | Annual report 2019 | — | |
| Jun 05, 2019 | Annual reports | 953491 | Annual report 2018 | — | |
| Jun 12, 2018 | Annual reports | 938907 | Annual report 2017 | — | |
| May 17, 2017 | Annual reports | 878144 | Annual report 2016 | — | |
| Jun 10, 2016 | Annual reports | 847417 | Annual report 2015 | — | |
| Jan 15, 2015 | Enforcement actions | 418210 | SEL (Staff Enforcement Letter) | Historical | |
| Jan 15, 2015 | Violations | 856262 | Deficient Report | Violation | Report |
| Aug 10, 2005 | Enforcement actions | 418862 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Rescinded | |
| Jul 15, 2005 | Enforcement actions | 311057 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 01, 2005 | Violations | 435243 | Late Report | Violation | Report |
| Jun 26, 2002 | Enforcement actions | 248431 | SEL (Staff Enforcement Letter) | Historical | UNKNOWN |
| Jun 26, 2002 | Violations | 220589 | Deficient BMP Implementation | Violation | Inspection |
| Jun 25, 2002 | Inspections | 2003364 | B Type compliance | — | No Further Action |
| Jul 17, 2001 | Enforcement actions | 237364 | NOV (Notice of Violation) | Historical | UNKNOWN |
| Jul 01, 2001 | Violations | 193765 | Deficient Report | Violation | Inspection |
| Jul 02, 1999 | Violations | 174094 | Deficient Report | Violation | Inspection |
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.