Metro Biosolids Center
Active WDID 9 37I014927 San Diego, San Diego County Region 9 · San Diego
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- San Diego, San Diego County
- Region 9 · San Diego · Location · Statewide map
- Receiving water
- Mission Bay (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
- 972 distinct results, 9 reporting years (2015 to 2023)
- Most recent sample Feb 20, 2024 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 1 violation record · 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
- 32.83648, -117.15225
- 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
- 5240 Convoy St, San Diego 92111
- Regional Water Board
- 9 — San Diego
HUC12 watershed Evidence: spatial
- Rose Canyon HUC12 180703041101
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
- San Diego City
- Primary industry (SIC)
- 4952-Sewerage Systems
- Application ID
- 218670
- NOI processed
- Jan 27, 1999
- Last certified
- Jul 06, 2025
- Facility size
- 29.2 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 218670 | Industrial | Active | Jan 27, 1999 | — | Jul 06, 2025 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Mission Bay
- Discharges directly / indirectly
- Y / 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 (2)
- 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.
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.
972 distinct measurements across 28 parameters, most recent sample Feb 20, 2024.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2023 | 135 | 12 | 0 | Nov 15, 2023 | Feb 20, 2024 |
| 2022 | 180 | 12 | 0 | Sep 09, 2022 | Mar 15, 2023 |
| 2021 | 66 | 12 | 0 | Dec 14, 2021 | Mar 04, 2022 |
| 2020 | 101 | 12 | 0 | Dec 28, 2020 | Mar 10, 2021 |
| 2019 | 100 | 12 | 0 | Nov 20, 2019 | Mar 10, 2020 |
| 2018 | 116 | 12 | 0 | Nov 29, 2018 | Jan 14, 2019 |
| 2017 | 26 | 7 | 0 | Jan 09, 2018 | Jan 09, 2018 |
| 2016 | 210 | 23 | 0 | Dec 16, 2016 | Feb 27, 2017 |
| 2015 | 38 | 6 | 0 | Sep 15, 2015 | Apr 07, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| E.coli | MPN/100 mL | 161 | 3 | Sep 15, 2015 | Feb 05, 2024 | Results |
| Total Coliform | MPN/100 mL | 161 | 0 | Sep 15, 2015 | Feb 05, 2024 | Results |
| pH | SU | 77 | 0 | Sep 15, 2015 | Feb 20, 2024 | Results |
| Total Suspended Solids (TSS) | mg/L | 59 | 2 | Sep 15, 2015 | Feb 05, 2024 | Results |
| Aluminum, Total | mg/L | 58 | 0 | Feb 27, 2017 | Feb 05, 2024 | Results |
| Oil and Grease | mg/L | 57 | 24 | Sep 15, 2015 | Feb 20, 2024 | Results |
| Copper, Total | mg/L | 54 | 0 | Feb 27, 2017 | Feb 05, 2024 | Results |
| Iron, Total | mg/L | 54 | 0 | Feb 27, 2017 | Feb 05, 2024 | Results |
| Zinc, Total | mg/L | 54 | 0 | Feb 27, 2017 | Feb 05, 2024 | Results |
| Lead, Total | mg/L | 47 | 1 | Nov 29, 2018 | Feb 05, 2024 | Results |
| Ammonia, Total (as N) | mg/L | 43 | 31 | Nov 29, 2018 | Feb 05, 2024 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 43 | 2 | Nov 29, 2018 | Feb 05, 2024 | Results |
Show 16 more parameters
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Antimony, Total | mg/L | 7 | 3 | Feb 27, 2017 | Feb 27, 2017 | Results |
| Barium, Total | mg/L | 7 | 0 | Feb 27, 2017 | Feb 27, 2017 | Results |
| Beryllium, Total | ug/L | 7 | 7 | Feb 27, 2017 | Feb 27, 2017 | Results |
| Boron, Total | ug/L | 7 | 0 | Feb 27, 2017 | Feb 27, 2017 | Results |
| Cadmium, Total | mg/L | 7 | 6 | Feb 27, 2017 | Feb 27, 2017 | Results |
| Chromium (Total) | mg/L | 7 | 0 | Feb 27, 2017 | Feb 27, 2017 | Results |
| Cobalt, Total | mg/L | 7 | 2 | Feb 27, 2017 | Feb 27, 2017 | Results |
| Fecal Coliform | MPN/100 mL | 7 | 0 | Feb 27, 2017 | Feb 27, 2017 | Results |
| Manganese, Total | mg/L | 7 | 0 | Feb 27, 2017 | Feb 27, 2017 | Results |
| Molybdenum, Total | mg/L | 7 | 0 | Feb 27, 2017 | Feb 27, 2017 | Results |
| Nickel, Total | mg/L | 7 | 0 | Feb 27, 2017 | Feb 27, 2017 | Results |
| Silver, Total | mg/L | 7 | 7 | Feb 27, 2017 | Feb 27, 2017 | Results |
| Thallium, Total | ug/L | 7 | 7 | Feb 27, 2017 | Feb 27, 2017 | Results |
| Vanadium, Total | mg/L | 7 | 0 | Feb 27, 2017 | Feb 27, 2017 | Results |
| Aluminum, Dissolved | mg/L | 4 | 0 | Jan 09, 2018 | Jan 09, 2018 | Results |
| Volatile Suspended Solids (VSS) | mg/L | 2 | 0 | Sep 15, 2015 | Sep 15, 2015 | Results |
All results (972 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 20, 2024 | Oil and Grease | DNQ 4.33 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1281625 | |
| Feb 20, 2024 | Oil and Grease | DNQ 4.06 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1281625 | |
| Feb 20, 2024 | pH | 7.7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1281625 | |
| Feb 20, 2024 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1281625 | |
| Feb 20, 2024 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1281625 | |
| Feb 05, 2024 | Aluminum, Total | 6.15 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1279814 | |
| Feb 05, 2024 | Aluminum, Total | .843 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1279814 | |
| Feb 05, 2024 | Ammonia, Total (as N) | .5 | mg/L | Effluent | Qualifying Storm Event | A4500NHC | 1279814 | |
| Feb 05, 2024 | Ammonia, Total (as N) | ND | mg/L | Effluent | Qualifying Storm Event | A4500NHC | 1279814 | |
| Feb 05, 2024 | Copper, Total | .0293 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1279814 | |
| Feb 05, 2024 | Copper, Total | .00779 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1279814 | |
| Feb 05, 2024 | E.coli | 9208 | MPN/100 mL | Effluent | Qualifying Storm Event | A9223B | 1279814 | |
| Feb 05, 2024 | E.coli | 1076 | MPN/100 mL | Effluent | Qualifying Storm Event | A9223B | 1279814 | |
| Feb 05, 2024 | E.coli | 602 | MPN/100 mL | Internal | Qualifying Storm Event | A9223B | 1279814 | |
| Feb 05, 2024 | E.coli | 1119900 | MPN/100 mL | Internal | Qualifying Storm Event | A9223B | 1279814 | |
| Feb 05, 2024 | E.coli | < 10 | MPN/100 mL | Internal | Qualifying Storm Event | A9223B | 1279814 | |
| Feb 05, 2024 | E.coli | 365400 | MPN/100 mL | Internal | Qualifying Storm Event | A9223B | 1279814 | |
| Feb 05, 2024 | Iron, Total | 9.2 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1279814 | |
| Feb 05, 2024 | Iron, Total | 1.34 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1279814 | |
| Feb 05, 2024 | Lead, Total | .00425 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1279814 | |
| Feb 05, 2024 | Lead, Total | .00121 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1279814 | |
| Feb 05, 2024 | Nitrite Plus Nitrate (as N) | .856 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1279814 | |
| Feb 05, 2024 | Nitrite Plus Nitrate (as N) | .935 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1279814 | |
| Feb 05, 2024 | pH | 7.7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1279814 | |
| Feb 05, 2024 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1279814 | |
| Feb 05, 2024 | pH | 7.7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1279814 | |
| Feb 05, 2024 | Total Coliform | 35000 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1279814 | |
| Feb 05, 2024 | Total Coliform | 4900 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1279814 | |
| Feb 05, 2024 | Total Coliform | 4900 | MPN/100 mL | Internal | Qualifying Storm Event | A9221B | 1279814 | |
| Feb 05, 2024 | Total Coliform | > 160000 | MPN/100 mL | Internal | Qualifying Storm Event | A9221B | 1279814 | |
| Feb 05, 2024 | Total Coliform | 93 | MPN/100 mL | Internal | Qualifying Storm Event | A9221B | 1279814 | |
| Feb 05, 2024 | Total Coliform | 540000 | MPN/100 mL | Internal | Qualifying Storm Event | A9221B | 1279814 | |
| Feb 05, 2024 | Total Suspended Solids (TSS) | 17.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1279814 | |
| Feb 05, 2024 | Total Suspended Solids (TSS) | 12.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1279814 | |
| Feb 05, 2024 | Zinc, Total | .317 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1279814 | |
| Feb 05, 2024 | Zinc, Total | .0547 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1279814 | |
| Feb 01, 2024 | Aluminum, Total | .83 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1277072 | |
| Feb 01, 2024 | Aluminum, Total | 1.22 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1277072 | |
| Feb 01, 2024 | Ammonia, Total (as N) | ND | mg/L | Effluent | Qualifying Storm Event | A4500NHC | 1277072 | |
| Feb 01, 2024 | Ammonia, Total (as N) | ND | mg/L | Effluent | Qualifying Storm Event | A4500NHC | 1277072 | |
| Feb 01, 2024 | Copper, Total | .0128 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1277072 | |
| Feb 01, 2024 | Copper, Total | .00905 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1277072 | |
| Feb 01, 2024 | E.coli | 4884 | MPN/100 mL | Effluent | Qualifying Storm Event | A9223B | 1277072 | |
| Feb 01, 2024 | E.coli | 613 | MPN/100 mL | Effluent | Qualifying Storm Event | A9223B | 1277072 | |
| Feb 01, 2024 | E.coli | 1725 | MPN/100 mL | Internal | Qualifying Storm Event | A9223B | 1277072 | |
| Feb 01, 2024 | E.coli | 4611 | MPN/100 mL | Internal | Qualifying Storm Event | A9223B | 1277072 | |
| Feb 01, 2024 | E.coli | 31 | MPN/100 mL | Internal | Qualifying Storm Event | A9223B | 1277072 | |
| Feb 01, 2024 | E.coli | 3441 | MPN/100 mL | Internal | Qualifying Storm Event | A9223B | 1277072 | |
| Feb 01, 2024 | Iron, Total | 1.4 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1277072 | |
| Feb 01, 2024 | Iron, Total | 1.95 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1277072 |
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 | 1 | 1 Violation · 0 Potential (preliminary) · 0 Dismissed | Jan 25, 1999 – Jan 25, 1999 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 2 issued · 0 draft · 0 withdrawn, rescinded or superseded | May 09, 2000 – May 02, 2008 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Jan 24, 2003 – Jan 24, 2003 | 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 (15 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 14, 2026 | Annual reports | 1334813 | Annual report 2025 | — | |
| Jul 14, 2025 | Annual reports | 1293608 | Annual report 2024 | — | |
| Jul 15, 2024 | Annual reports | 1242652 | Annual report 2023 | — | |
| Jul 12, 2023 | Annual reports | 1188630 | Annual report 2022 | — | |
| Jul 14, 2022 | Annual reports | 1111948 | Annual report 2021 | — | |
| Jul 08, 2021 | Annual reports | 1067929 | Annual report 2020 | — | |
| Jul 14, 2020 | Annual reports | 985138 | Annual report 2019 | — | |
| Jul 12, 2019 | Annual reports | 952663 | Annual report 2018 | — | |
| Jul 16, 2018 | Annual reports | 938076 | Annual report 2017 | — | |
| Jul 12, 2017 | Annual reports | 877277 | Annual report 2016 | — | |
| Jul 15, 2016 | Annual reports | 839511 | Annual report 2015 | — | |
| May 02, 2008 | Enforcement actions | 344766 | SEL (Staff Enforcement Letter) | Active | |
| Jan 24, 2003 | Inspections | 328468 | Non-compliance Follow-up | — | |
| May 09, 2000 | Enforcement actions | 234707 | NTC (Notice to Comply) | Historical | UNKNOWN |
| Jan 25, 1999 | Violations | 177353 | 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.