ACM Machining
Active WDID 5S34I023914 Rancho Cordova, 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
- Rancho Cordova, Sacramento County
- Region 5S · Central Valley (Sacramento) · Location · Statewide map
- Receiving water
- Sacramento River Watershed via Morrison Creek (as reported by the facility)
- Evidence: not confirmed 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
- 545 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Apr 10, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 7 inspections · 4 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
- 38.57814, -121.25619
- 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
- 11390 Gold Dredge Wy, Rancho Cordova 95742
- 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
- ACM Machining
- Primary industry (SIC)
- 3499-Fabricated Metal Products, NEC
- Application ID
- 432705
- NOI processed
- Nov 09, 2012
- Last certified
- Feb 25, 2015
- Facility size
- 2.2 Acres
- Impervious area
- 95 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 432705 | Industrial | Active | Nov 09, 2012 | — | Feb 25, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Sacramento River Watershed via Morrison Creek
- 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.
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.
545 distinct measurements across 9 parameters, most recent sample Apr 10, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 64 | 8 | 0 | Nov 05, 2025 | Apr 10, 2026 |
| 2024 | 64 | 8 | 0 | Nov 20, 2024 | Mar 13, 2025 |
| 2023 | 64 | 8 | 0 | Dec 06, 2023 | Apr 04, 2024 |
| 2022 | 65 | 9 | 0 | Nov 01, 2022 | Mar 21, 2023 |
| 2021 | 48 | 8 | 0 | Dec 12, 2021 | Mar 28, 2022 |
| 2020 | 44 | 8 | 0 | Dec 28, 2020 | Feb 02, 2021 |
| 2019 | 28 | 7 | 0 | Jan 09, 2020 | Jan 16, 2020 |
| 2018 | 42 | 7 | 0 | Nov 28, 2018 | Feb 25, 2019 |
| 2017 | 42 | 7 | 0 | Jan 08, 2018 | Mar 01, 2018 |
| 2016 | 42 | 7 | 0 | Oct 25, 2016 | Feb 03, 2017 |
| 2015 | 42 | 7 | 0 | Nov 02, 2015 | Mar 07, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Aluminum, Total | mg/L | 72 | 0 | Nov 02, 2015 | Apr 10, 2026 | Results |
| Iron, Total | mg/L | 72 | 1 | Nov 02, 2015 | Apr 10, 2026 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 72 | 8 | Nov 02, 2015 | Apr 10, 2026 | Results |
| Oil and Grease | mg/L | 72 | 8 | Nov 02, 2015 | Apr 10, 2026 | Results |
| pH | SU | 72 | 0 | Nov 02, 2015 | Apr 10, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 72 | 8 | Nov 02, 2015 | Apr 10, 2026 | Results |
| Zinc, Total | mg/L | 72 | 0 | Nov 02, 2015 | Apr 10, 2026 | Results |
| Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | mg/L | 40 | 6 | Feb 02, 2021 | Apr 10, 2026 | Results |
| Copper, Total | mg/L | 1 | 0 | Feb 23, 2023 | Feb 23, 2023 | Results |
All results (545 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Apr 10, 2026 | Aluminum, Total | .058 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1372373 | |
| Apr 10, 2026 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | ND | mg/L | Effluent | Qualifying Storm Event | A5210B | 1372373 | |
| Apr 10, 2026 | Iron, Total | .13 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1372373 | |
| Apr 10, 2026 | Nitrite Plus Nitrate (as N) | .14 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1372373 | |
| Apr 10, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1372373 | |
| Apr 10, 2026 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1372373 | |
| Apr 10, 2026 | Total Suspended Solids (TSS) | 4.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1372373 | |
| Apr 10, 2026 | Zinc, Total | .1 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1372373 | |
| Apr 01, 2026 | Aluminum, Total | .057 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1372373 | |
| Apr 01, 2026 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | ND | mg/L | Effluent | Qualifying Storm Event | A5210B | 1372373 | |
| Apr 01, 2026 | Iron, Total | .09 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1372373 | |
| Apr 01, 2026 | Nitrite Plus Nitrate (as N) | .13 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1372373 | |
| Apr 01, 2026 | Oil and Grease | .79 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1372373 | |
| Apr 01, 2026 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1372373 | |
| Apr 01, 2026 | Total Suspended Solids (TSS) | 4.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1372373 | |
| Apr 01, 2026 | Zinc, Total | .091 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1372373 | |
| Mar 31, 2026 | Aluminum, Total | .046 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1371326 | |
| Mar 31, 2026 | Aluminum, Total | .035 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1371326 | |
| Mar 31, 2026 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | ND | mg/L | Effluent | Qualifying Storm Event | A5210B | 1371326 | |
| Mar 31, 2026 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | ND | mg/L | Effluent | Qualifying Storm Event | A5210B | 1371326 | |
| Mar 31, 2026 | Iron, Total | .12 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1371326 | |
| Mar 31, 2026 | Iron, Total | .11 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1371326 | |
| Mar 31, 2026 | Nitrite Plus Nitrate (as N) | .036 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1371326 | |
| Mar 31, 2026 | Nitrite Plus Nitrate (as N) | .042 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1371326 | |
| Mar 31, 2026 | Oil and Grease | .79 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1371326 | |
| Mar 31, 2026 | Oil and Grease | 1.1 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1371326 | |
| Mar 31, 2026 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1371326 | |
| Mar 31, 2026 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1371326 | |
| Mar 31, 2026 | Total Suspended Solids (TSS) | 3.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1371326 | |
| Mar 31, 2026 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1371326 | |
| Mar 31, 2026 | Zinc, Total | .17 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1371326 | |
| Mar 31, 2026 | Zinc, Total | .16 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1371326 | |
| Nov 13, 2025 | Aluminum, Total | .4 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1358253 | |
| Nov 13, 2025 | Aluminum, Total | .36 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1358253 | |
| Nov 13, 2025 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | 3.5 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1358253 | |
| Nov 13, 2025 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | 3.9 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1358253 | |
| Nov 13, 2025 | Iron, Total | .64 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1358253 | |
| Nov 13, 2025 | Iron, Total | .6 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1358253 | |
| Nov 13, 2025 | Nitrite Plus Nitrate (as N) | .0078 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1358253 | |
| Nov 13, 2025 | Nitrite Plus Nitrate (as N) | .18 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1358253 | |
| Nov 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1358253 | |
| Nov 13, 2025 | Oil and Grease | .69 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1358253 | |
| Nov 13, 2025 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1358253 | |
| Nov 13, 2025 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1358253 | |
| Nov 13, 2025 | Total Suspended Solids (TSS) | 18 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1358253 | |
| Nov 13, 2025 | Total Suspended Solids (TSS) | 16 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1358253 | |
| Nov 13, 2025 | Zinc, Total | .19 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1358253 | |
| Nov 13, 2025 | Zinc, Total | .19 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1358253 | |
| Nov 05, 2025 | Aluminum, Total | .16 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1356563 | |
| Nov 05, 2025 | Aluminum, Total | .16 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1356563 |
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 | Jul 01, 2014 – Jul 15, 2025 | Oct 21, 2026 | All violations |
| Enforcement actions | 5 | 5 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 15, 2014 – Aug 08, 2025 | Oct 21, 2026 | All actions |
| Inspections | 7 | inspections, not findings | Nov 15, 2012 – Apr 08, 2025 | 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 (27 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jun 24, 2026 | Annual reports | 1338003 | Annual report 2025 | — | |
| Aug 11, 2025 | Annual reports | 1296960 | Annual report 2024 | — | |
| Aug 08, 2025 | Enforcement actions | 457371 | NOV (Notice of Violation) | Active | |
| Jul 15, 2025 | Violations | 892842 | Late Report | Violation | Report |
| Apr 08, 2025 | Inspections | 2067557 | B Type compliance | Finalized | Additional Info Required |
| Jun 25, 2024 | Annual reports | 1246183 | Annual report 2023 | — | |
| Jun 28, 2023 | Annual reports | 1192320 | Annual report 2022 | — | |
| Jun 28, 2022 | Annual reports | 1115989 | Annual report 2021 | — | |
| Jun 15, 2021 | Annual reports | 1064121 | Annual report 2020 | — | |
| Jul 13, 2020 | Annual reports | 981079 | Annual report 2019 | — | |
| Jul 11, 2019 | Annual reports | 957365 | Annual report 2018 | — | |
| Feb 13, 2019 | Enforcement actions | 432844 | NOV (Notice of Violation) | Historical | |
| Jan 01, 2019 | Violations | 869729 | Late Report | Violation | Report |
| Jul 09, 2018 | Annual reports | 942802 | Annual report 2017 | — | |
| Jan 08, 2018 | Inspections | 2036741 | A Type compliance | — | No Further Action |
| Jul 06, 2017 | Annual reports | 882302 | Annual report 2016 | — | |
| Jun 07, 2017 | Enforcement actions | 426216 | NOV (Notice of Violation) | Active | |
| Dec 28, 2016 | Violations | 863446 | Deficient Report | Violation | Report |
| Dec 08, 2016 | Inspections | 2032195 | B Type compliance | — | Additional Info Required |
| Jun 06, 2016 | Annual reports | 840002 | Annual report 2015 | — | |
| Oct 01, 2014 | Enforcement actions | 417046 | 2nd NNC - AR (Second Notice of Non-Compliance (annual report)) | Historical | |
| Aug 15, 2014 | Enforcement actions | 416637 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 01, 2014 | Violations | 854980 | Late Report | Violation | Report |
| Dec 06, 2013 | Inspections | 2020701 | B Type compliance | — | Follow-up Inspection Needed |
| May 22, 2013 | Inspections | 2019135 | B Type compliance | — | Follow-up Inspection Needed |
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.