Graham Packaging Company LP

Active WDID 5S50I025068 Modesto, Stanislaus 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
Modesto, Stanislaus County
Region 5S · Central Valley (Sacramento) · Location · Statewide map
Receiving water
Toulumne River (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
1 waterbody; 0 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
138 distinct results, 5 reporting years (2021 to 2025)
Most recent sample Apr 21, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
1 inspection · 4 violation records · 8 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
0 records
TMDL records

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

Open this facility on the statewide map

Reported location Evidence: facility-reported

Coordinates
37.63202, -120.93085
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
513 South McClure Road, Modesto 95357
Regional Water Board
5S — Central Valley (Sacramento)

HUC12 watershed Evidence: spatial

  • Salter Gulch-Tuolumne River HUC12 180400091402

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
Graham Packaging Company LP
Primary industry (SIC)
3085-Plastics Bottles
Application ID
449354
NOI processed
Sep 22, 2014
Last certified
Jul 15, 2022
Facility size
10.8 Acres
Impervious area
75 %

Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
449354 IndustrialActiveSep 22, 2014 —Jul 15, 2022

Every storm water application SMARTS records for this WDID, newest first (1).

Receiving water

Reported by the facility Evidence: facility-reported
Toulumne River
Discharges directly / indirectly
Y / N (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.

Nearest 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
Lateral Drain 1 (Stanislaus County) CAR5353000020101114125013290 m not listed0

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.

138 distinct measurements across 10 parameters, most recent sample Apr 21, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
20254210 0 Oct 14, 2025Apr 21, 2026
2024328 0 Nov 11, 2024Feb 04, 2025
2023328 0 Dec 18, 2023Mar 22, 2024
20222710 0 Dec 10, 2022Mar 09, 2023
202153 0 Dec 13, 2021Dec 13, 2021

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Oil and Greasemg/L18 16Dec 13, 2021Apr 21, 2026 Results
pHSU18 0Dec 13, 2021Apr 21, 2026 Results
Total Suspended Solids (TSS)mg/L17 5Dec 13, 2021Apr 21, 2026 Results
Aluminum, Totalmg/L16 3Dec 10, 2022Apr 21, 2026 Results
Electrical Conductivity @ 25 Deg. Cumhos/cm16 0Dec 10, 2022Apr 21, 2026 Results
Iron, Totalmg/L16 1Dec 10, 2022Apr 21, 2026 Results
Zinc, Totalmg/L16 0Dec 10, 2022Apr 21, 2026 Results
Nitrite Plus Nitrate (as N)mg/L15 0Dec 27, 2022Apr 21, 2026 Results
Nitrate, Total (as N)mg/L3 0Dec 27, 2022Apr 11, 2026 Results
Nitrite, Total (as N)mg/L3 3Dec 27, 2022Apr 11, 2026 Results

All results (138 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Apr 21, 2026 Aluminum, Total .103 mg/L Effluent Qualifying Storm Event E200.8 1373238
Apr 21, 2026 Electrical Conductivity @ 25 Deg. C 73.6 umhos/cm Effluent Qualifying Storm Event A2510B 1373238
Apr 21, 2026 Iron, Total .111 mg/L Effluent Qualifying Storm Event E200.7 1373238
Apr 21, 2026 Nitrite Plus Nitrate (as N) .58 mg/L Effluent Qualifying Storm Event E300.0 1373238
Apr 21, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1373238
Apr 21, 2026 pH 7.24 SU Effluent Qualifying Storm Event pH_Field 1373238
Apr 21, 2026 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 1373238
Apr 21, 2026 Zinc, Total .203 mg/L Effluent Qualifying Storm Event E200.8 1373238
Apr 11, 2026 Aluminum, Total .21 mg/L Effluent Qualifying Storm Event E200.8 1374140
Apr 11, 2026 Electrical Conductivity @ 25 Deg. C 42 umhos/cm Effluent Qualifying Storm Event A2510B 1374140
Apr 11, 2026 Iron, Total .401 mg/L Effluent Qualifying Storm Event E200.7 1374140
Apr 11, 2026 Nitrate, Total (as N) .5 mg/L Effluent Qualifying Storm Event E300.0 1374140
Apr 11, 2026 Nitrite Plus Nitrate (as N) .5 mg/L Effluent Qualifying Storm Event E300.0 1374140
Apr 11, 2026 Nitrite, Total (as N) ND mg/L Effluent Qualifying Storm Event E300.0 1374140
Apr 11, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1374140
Apr 11, 2026 pH 7.2 SU Effluent Qualifying Storm Event pH_Field 1374140
Apr 11, 2026 Total Suspended Solids (TSS) 38 mg/L Effluent Qualifying Storm Event A2540D 1374140
Apr 11, 2026 Zinc, Total .26 mg/L Effluent Qualifying Storm Event E200.8 1374140
Feb 16, 2026 Aluminum, Total .023 mg/L Effluent Qualifying Storm Event E200.8 1360746
Feb 16, 2026 Electrical Conductivity @ 25 Deg. C 58.6 umhos/cm Effluent Qualifying Storm Event A2510B 1360746
Feb 16, 2026 Iron, Total .132 mg/L Effluent Qualifying Storm Event E200.7 1360746
Feb 16, 2026 Nitrite Plus Nitrate (as N) .57 mg/L Effluent Qualifying Storm Event E300.0 1360746
Feb 16, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1360746
Feb 16, 2026 pH 6.46 SU Effluent Qualifying Storm Event pH_Field 1360746
Feb 16, 2026 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 1360746
Feb 16, 2026 Zinc, Total .147 mg/L Effluent Qualifying Storm Event E200.8 1360746
Nov 13, 2025 Aluminum, Total 2.17 mg/L Effluent Qualifying Storm Event E200.8 1359907
Nov 13, 2025 Electrical Conductivity @ 25 Deg. C 82.3 umhos/cm Effluent Qualifying Storm Event A2510B 1359907
Nov 13, 2025 Iron, Total 2.72 mg/L Effluent Qualifying Storm Event E200.7 1359907
Nov 13, 2025 Nitrite Plus Nitrate (as N) .53 mg/L Effluent Qualifying Storm Event E300.0 1359907
Nov 13, 2025 Oil and Grease DNQ 1.6 mg/L Effluent Qualifying Storm Event E1664B 1359907
Nov 13, 2025 pH 7.3 SU Effluent Qualifying Storm Event pH_Field 1359907
Nov 13, 2025 Total Suspended Solids (TSS) 77.3 mg/L Effluent Qualifying Storm Event A2540D 1359907
Nov 13, 2025 Zinc, Total 1.19 mg/L Effluent Qualifying Storm Event E200.8 1359907
Oct 14, 2025 Aluminum, Total .403 mg/L Effluent Qualifying Storm Event E200.8 1357151
Oct 14, 2025 Electrical Conductivity @ 25 Deg. C 158 umhos/cm Effluent Qualifying Storm Event A2510B 1357151
Oct 14, 2025 Iron, Total .647 mg/L Effluent Qualifying Storm Event E200.7 1357151
Oct 14, 2025 Nitrite Plus Nitrate (as N) 1.89 mg/L Effluent Qualifying Storm Event E300.0 1357151
Oct 14, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1357151
Oct 14, 2025 pH 6.7 SU Effluent Qualifying Storm Event pH_Field 1357151
Oct 14, 2025 Total Suspended Solids (TSS) 33.5 mg/L Effluent Qualifying Storm Event A2540D 1357151
Oct 14, 2025 Zinc, Total .873 mg/L Effluent Qualifying Storm Event E200.8 1357151
Feb 04, 2025 Aluminum, Total ND mg/L Effluent Qualifying Storm Event E200.8 1323796
Feb 04, 2025 Electrical Conductivity @ 25 Deg. C 148 umhos/cm Effluent Qualifying Storm Event A2510B 1323796
Feb 04, 2025 Iron, Total ND mg/L Effluent Qualifying Storm Event E200.8 1323796
Feb 04, 2025 Nitrite Plus Nitrate (as N) .67 mg/L Effluent Qualifying Storm Event E300.0 1323796
Feb 04, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1323796
Feb 04, 2025 pH 7.69 SU Effluent Qualifying Storm Event pH_Field 1323796
Feb 04, 2025 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 1323796
Feb 04, 2025 Zinc, Total .0219 mg/L Effluent Qualifying Storm Event E200.8 1323796

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.

Compliance and enforcement records by type
Record typeRecordsAs publishedDatesRetrievedList
Violations4 4 Violation · 0 Potential (preliminary) · 0 Dismissed Aug 15, 2015 – Jul 15, 2019 Oct 21, 2026 All violations
Enforcement actions8 8 issued · 0 draft · 0 withdrawn, rescinded or superseded Sep 16, 2015 – Nov 19, 2019 Oct 21, 2026 All actions
Inspections1inspections, not findings Nov 28, 2017 – Nov 28, 2017 Oct 21, 2026 All inspections
Annual reports10certified reports (contents not shown) 2015 – 2025 Oct 21, 2026 All reports
Water-quality-based corrective action reports0reports, 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 (23 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jun 19, 2026 Annual reports 1338610 Annual report 2025 —
Jul 07, 2025 Annual reports 1297614 Annual report 2024 —
Jul 10, 2024 Annual reports 1246860 Annual report 2023 —
Jul 12, 2023 Annual reports 1193030 Annual report 2022 —
Jul 25, 2022 Annual reports 1116803 Annual report 2021 —
Jul 15, 2021 Annual reports 1064987 Annual report 2020 —
Jun 18, 2020 Annual reports 958371 Annual report 2018 —
Jun 18, 2020 Annual reports 982041 Annual report 2019 —
Nov 19, 2019 Enforcement actions 435903 2nd NNC - AR (Second Notice of Non-Compliance (annual report)) Active
Aug 27, 2019 Enforcement actions 433951 1st NNC - AR (First Notice of Non-Compliance (annual report)) Active
Jul 15, 2019 Violations 870832 Late Report ViolationReport
Jul 16, 2018 Annual reports 943814 Annual report 2017 —
Nov 28, 2017 Inspections 2035802 B Type compliance —Additional Info Required
Oct 04, 2017 Enforcement actions 427412 2nd NNC - AR (Second Notice of Non-Compliance (annual report)) Historical
Aug 03, 2017 Enforcement actions 426565 1st NNC - AR (First Notice of Non-Compliance (annual report)) Historical
Jul 15, 2017 Violations 863785 Late Report ViolationReport
Nov 22, 2016 Annual reports 843043 Annual report 2015 —
Oct 28, 2016 Enforcement actions 425117 2nd NNC - AR (Second Notice of Non-Compliance (annual report)) Historical
Sep 12, 2016 Enforcement actions 424089 1st NNC - AR (First Notice of Non-Compliance (annual report)) Historical
Jul 15, 2016 Violations 861156 Late Report ViolationReport
Jan 28, 2016 Enforcement actions 422524 2nd NNC - AR (Second Notice of Non-Compliance (annual report)) Historical
Sep 16, 2015 Enforcement actions 420304 1st NNC - AR (First Notice of Non-Compliance (annual report)) Historical
Aug 15, 2015 Violations 858094 Late Report ViolationReport

Sources and provenance

Sources behind this page
InformationSourceRetrieved or published
Permit, location, receiving-water textSMARTS Industrial Application Specific DataOct 20, 2026
Permit historySMARTS Storm Water ApplicationsOct 20, 2026
Monitoring resultsSMARTS Industrial Parameter DataOct 20, 2026
Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12)USGS2026-10-22
2026 California Integrated Report, Appendix A: 2026 303(d) List (final)SWRCB2026-10-22
Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0)SWRCB GIS2026-10-22
SMARTS TMDL requirementsSMARTS2026-10-21

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

Records are shown as published and are not compliance determinations. How geographic context is derived.