Non-Compliance
TRI Reporter
Clean Water Act
RCRA
US NATL PARK SERVICE YOSEMITE NATL PARK
Quick Summary
- •Released 200 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
NATIONAL PARK SERVICE, NPS
EL PORTAL, CA 95318
View on map ↗ - County
- MARIPOSA County
- Industry
- Arts, Entertainment, and Recreation
- NAICS (North American Industry Classification)
- 712190
- Inspections
- 2 · last Jun 24, 2024
- Total Penalties
- $0
- Registry ID
- 110041960679
How This Compares
#461
of 996 TRI reporters in CA
#2
of 3 TRI reporters in Arts, Entertainment, and Recreation
Ranked by most recent year's total TRI releases.
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
12
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
Qtrs Non-Compliant
Qtrs Non-Compliant
TRI Toxic Chemical Releases
Annual pounds of each toxic chemical released to air, water, and land, as reported to the EPA Toxic Release Inventory. Carcinogen (♦) and PFAS designations are per EPA and IARC classifications.
Emissions Trend (2015–2020)
+73% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 220 | — |
| 2016 | 200 | -9% |
| 2017 | 200 | 0% |
| 2018 | 556 | +178% |
| 2020 | 380 | — |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Lead | 380 | — | — | 380 | — | ♦ Carcinogen |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Lead | 556 | — | — | 556 | — | ♦ Carcinogen |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Lead | 200 | — | — | 200 | — | ♦ Carcinogen |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Lead | 200 | — | — | 200 | — | ♦ Carcinogen |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Lead | 220 | — | — | 220 | — | ♦ Carcinogen |
Waste Management & Recycling
How this facility manages toxic chemicals beyond direct releases — through recycling, energy recovery, and on-site or off-site treatment. Data from the most recent TRI reporting year. Quantities in pounds.
| Chemical | Released | Recycled | Energy Recovery | Treated |
|---|
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| cwa | Permit Violations - Violation Specified in Comment | Feb 20, 2019 | — | Open |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | May 22, 2013 | May 22, 2013 | Resolved |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Oct 1, 2012 | Nov 6, 2012 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Oct 1, 2012 | Oct 9, 2012 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: General Facility Standards | Oct 1, 2012 | Nov 6, 2012 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Preparedness and Prevention | Oct 1, 2012 | Feb 3, 2013 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers | Oct 1, 2012 | Oct 9, 2012 | Resolved |
| rcra | EPA Administered Permit Programs: the HW Permit Program General Information | Oct 1, 2012 | Oct 3, 2013 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Aug 30, 2000 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Jul 31, 2000 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Jun 30, 2000 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Apr 30, 2000 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Mar 31, 2000 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Feb 29, 2000 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Jan 19, 2000 | — | Open |
| rcra | Standards Applicable to Generators of HW: General | Aug 12, 1996 | Aug 12, 2001 | Resolved |
| rcra | Land Disposal Restrictions: General | Aug 12, 1996 | Aug 12, 2001 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Aug 2, 1993 | Oct 8, 1993 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General | Aug 20, 1992 | Jan 8, 1993 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Closure and Post-Closure | Jan 22, 1991 | Jan 8, 1993 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General | Jan 22, 1991 | Jan 8, 1993 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Jan 22, 1991 | Jan 8, 1993 | Resolved |
| rcra | Land Disposal Restrictions: General | Jan 22, 1991 | Jan 8, 1993 | Resolved |
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| Specific conductance | DMR, Limited - Numeric Violation | 957.00 umho/cm | 925.00 | +3% | Dec 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 17.00 mg/L | 0.50 | +3,300% | Dec 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 17.00 mg/L | 1.00 | +1,600% | Dec 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 326.00 mg/L | 20.00 | +1,530% | Nov 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 279.00 mg/L | 10.00 | +2,690% | Nov 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 192.00 mg/L | 10.00 | +1,820% | Nov 2020 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 214.00 mg/L | 20.00 | +970% | Nov 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 210.00 mg/L | 20.00 | +950% | Aug 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 190.00 mg/L | 10.00 | +1,800% | Aug 2020 | Resolved |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 83.90 % | 90.00 | +61% | Jun 2020 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 89.40 % | 90.00 | +6% | Apr 2020 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 89.80 % | 90.00 | +2% | May 2019 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.86 mg/L | 0.50 | +72% | Mar 2018 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 89.00 % | 90.00 | +10% | Nov 2017 | Open |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.
State CWA Penalty AO
Clean Water Act
· Case CA-N00001927
State CWA Non Penalty AO
Clean Water Act
· Case CA-CFEA461909 · Jun 20, 2025
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste)
· Case RCRA-CA5141790118-003 · Aug 19, 2015
INIT. 3008(H) I.S. CA ORDER
RCRA (Hazardous Waste)
· Case RCRA-CA5141790118-001 · May 22, 2013
State CWA Non Penalty AO
Clean Water Act
· Case CA-2011-1121 · Sep 15, 2011
State CWA Penalty AO
Clean Water Act
· Case CA-N00000687 · Dec 15, 2000
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00000688 · Sep 15, 2000
State CWA Non Penalty AO
Clean Water Act
· Case CA-N00001928 · Aug 2, 2000
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste)
· Case RCRA-CA5141790118-004 · Aug 2, 1993
$3,400
NOV RECEIVED BY FACILITY
RCRA (Hazardous Waste)
· Case RCRA-CA5141790118-002 · Aug 20, 1992
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