← Facilities

Industrial stormwater facility

Lompoc Regional Wastewater Reclamation Plant

3 42I001622 · Notice of Intent · Lompoc, Santa Barbara

Official record — State Water Resources Control Board, Industrial General Permit

Official

Facility record

Facility name
Lompoc Regional Wastewater Reclamation Plant
WDID
3 42I001622
Application type
Notice of Intent
City
Lompoc
County
Santa Barbara
ZIP
93436
Primary SIC code
4952
SIC description
Sewerage Systems
Date active
1992-03-27
Regional Water Board
Regional Board 3 - Central Coast Region

Hydrologic

Geographic context

Official facility coordinate plotted against the official 2026 impaired-water geometry.

Official facility point
34.66112, -120.48547
HUC12 subwatershed
San Miguelito Creek-Santa Ynez River
HUC12 code
180600100703
Impaired-water associations (derived)
4
Loading map…

303(d) context

Associated impaired waters

Grouped by derived geographic association class.

Derived

Subwatershed + nearby

3 waterbodies
Santa Ynez River (below city of Lompoc to Ocean)

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (11) Benthic Community Effects, Chloride, Escherichia coli (E. coli), Molybdenum, Nitrate, Oxygen, Dissolved +5 more

Distance 0.26 km

Confidence high

Fact sheet

San Miguelito Creek

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (7) Chloride, Nitrate, Oxygen, Dissolved, pH, Sodium, Temperature, water +1 more

Distance 0.27 km

Confidence high

Fact sheet

Santa Ynez River (Cachuma Lake to below city of Lompoc)

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (8) Benthic Community Effects, Molybdenum, Oxygen, Dissolved, Sedimentation/Siltation, Sodium, Temperature, water +2 more

Distance 0.27 km

Confidence high

Fact sheet

Same impaired-water subwatershed

1 waterbodies
Salsipuedes Creek (Santa Barbara County)

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (3) Chloride, Escherichia coli (E. coli), Sodium

Distance

Confidence low

Fact sheet

Associations are calculated from official facility coordinates, USGS HUC12 boundaries, and official 2026 impaired-water geometry. They do not establish a discharge connection or causation.

TMDL requirements

Water Board-stated TMDL waste load allocations applied to this industrial permit in SMARTS.

Official record — SMARTS TMDL dataset, State Water Board

No SMARTS TMDL requirement is recorded for this WDID. In the statewide TMDL export only permits in Regions 4, 8 and 9 currently carry industrial TMDL requirements, so an absence here is not a statement that the facility discharges to an unimpaired water.

Official monitoring

SMARTS monitoring

Self-reported industrial stormwater sampling results as submitted by the discharger to SMARTS.

Official record — SMARTS parameter data, State Water Board
Reported results
127
Sample events
35
Distinct parameters
4
Reporting years
2015 – 2025
First sample
2016-01-05
Latest sample
2026-04-21
Source regional dataset
Region 3 - Central Coast
Source retrieved
Aug 21, 2026

Official SMARTS public reports

Parameters reported

Reported results over time

Loading reported results…

Most recent reported results

Latest 25 of 127
Sample dateLocationParameterResultUnitsEvent
2026-04-21Original Discharge PointOil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2026-04-21Original Discharge PointpH7.35SUQualifying Storm Event
2026-04-21Original Discharge PointTotal Suspended Solids (TSS)6mg/LQualifying Storm Event
2026-04-21Secondary Discharge PointOil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2026-04-21Secondary Discharge PointpH7.76SUQualifying Storm Event
2026-04-21Secondary Discharge PointTotal Suspended Solids (TSS)44mg/LQualifying Storm Event
2026-02-17Original Discharge PointOil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2026-02-17Original Discharge PointpH7.45SUQualifying Storm Event
2026-02-17Original Discharge PointTotal Suspended Solids (TSS)10mg/LQualifying Storm Event
2026-02-17Secondary Discharge PointOil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2026-02-17Secondary Discharge PointpH7.69SUQualifying Storm Event
2026-02-17Secondary Discharge PointTotal Suspended Solids (TSS)DNQ 2(non-detect / est.)mg/LQualifying Storm Event
2025-12-24Secondary Discharge PointOil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2025-12-24Secondary Discharge PointpH7.73SUQualifying Storm Event
2025-12-24Secondary Discharge PointTotal Suspended Solids (TSS)4mg/LQualifying Storm Event
2025-11-14Original Discharge PointOil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2025-11-14Original Discharge PointpH7.24SUQualifying Storm Event
2025-11-14Original Discharge PointTotal Suspended Solids (TSS)12mg/LQualifying Storm Event
2025-10-14Original Discharge PointOil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2025-10-14Original Discharge PointpH7.14SUQualifying Storm Event
2025-10-14Original Discharge PointTotal Suspended Solids (TSS)36mg/LQualifying Storm Event
2025-02-13Original Discharge PointOil and GreaseDNQ 1.85(non-detect / est.)mg/LQualifying Storm Event
2025-02-13Original Discharge PointpH7.25SUQualifying Storm Event
2025-02-13Original Discharge PointTotal Suspended Solids (TSS)18mg/LQualifying Storm Event
2025-02-07Original Discharge PointOil and GreaseND (non-detect / est.)mg/LQualifying Storm Event

Monitoring rows are official self-reported SMARTS submissions, joined to this facility by WDID. California Stormwater Intelligence does not restate, correct, average or evaluate reported values, and no benchmark comparison or violation determination is made.

YDOS-derived

Numeric Action Level comparison

Reported SMARTS analytical results compared against the Numeric Action Levels of the Industrial General Permit version in effect for each reporting year (July 1 – June 30).

Derived
Reporting years evaluated
11
Years with an NAL exceedance
0
Most recent evaluated year
RY 2025
Ruleset
igp_nal_ruleset_v1 / igp_nal_v1
ParameterNAL typeCalculated valueNALResultSamples usedMethod

Oil and Grease

oil_grease

Instantaneous maximum0 samples above25 mg/LAt or below NALNo eligible result in this reporting year was outside the instantaneous maximum NAL.7 eligible7 non-detect as zerocount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

pH

ph

Instantaneous maximum0 samples above6 – 9 pH unitsWithin NAL rangeNo eligible result in this reporting year was outside the instantaneous maximum NAL.7 eligiblecount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

Total Suspended Solids (TSS)

tss

Instantaneous maximum0 samples above400 mg/LAt or below NALNo eligible result in this reporting year was outside the instantaneous maximum NAL.7 eligible1 non-detect as zerocount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

An NAL exceedance is a permit-defined condition that triggers Exceedance Response Actions under the Industrial General Permit. It is not a violation, an enforcement action, or a Water Board compliance determination. Annual values use the arithmetic average of eligible results with non-detects treated as zero; instantaneous maximum NALs (total suspended solids, oil and grease, pH) are exceeded when two or more eligible results in a reporting year fall outside the level. Rules transcribed from 2014-0057-DWQ as amended by 2015-0122-DWQ (effective 2015-07-01, superseded 2020-06-30); 2014-0057-DWQ as amended by 2018-0028-DWQ (effective 2020-07-01).

Provenance

Source & provenance

Source agency
California State Water Resources Control Board
Source dataset
Industrial General Permit — permitted facilities (statewide GIS layer)
WDID
3 42I001622
Source feature ID
10924
Application type
Notice of Intent
Regional board derivation
WDID region prefix
Geometry status
valid
Last successful facility import
Aug 21, 2026, 1:57 AM UTC

Official IGP permitted facilities feature layer