OHA Drinking Water Services
OR41
PWS ID: 95706 ---- NPS OREGON CAVES NATIONAL MONUMENT O&M
Violation History

Violations are displayed for the last 5 years only.
Group Abbreviations:  ARS = Arsenic, DBP = Disinfection Byproducts, IOC = Inorganic Chemicals, LCR = Lead & Copper Rule, NO2 = Nitrite, NO3 = Nitrate, SOC = Synthetic Organic Chemicals, SWTR = Surface Water Treatment Rule, VOC = Volatile Organic Chemicals
Gray shading indicates return to compliance. 

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Violation
Number		Monitoring Period
Begin
End 		Facility
ID		 Analyte
Group		 Violation Type - Analyte Count
Hide analytes for all violations 		Enforcement Action - Date
Show history 		Points Contact
Report
139Jan 01, 2023 Dec 31, 2023DIST-A DBP DBP Late/Nonreporting - 2
TOTAL HALOACETIC ACIDS (HAA5)
TTHM
1
200Apr 01, 2024 Jun 30, 2024EP-A SOC Chemical Late/Nonreporting - 29
1,2-DIBROMO-3-CHLOROPROPANE
2,4,5-TP
2,4-D
ATRAZINE
BENZO(A)PYRENE
BHC-GAMMA
CARBOFURAN
CHLORDANE
DALAPON
DI(2-ETHYLHEXYL) ADIPATE
DI(2-ETHYLHEXYL) PHTHALATE
DINOSEB
DIQUAT
ENDOTHALL
ENDRIN
ETHYLENE DIBROMIDE
GLYPHOSATE
HEPTACHLOR
HEPTACHLOR EPOXIDE
HEXACHLOROBENZENE
HEXACHLOROCYCLOPENTADIENE
LASSO
METHOXYCHLOR
OXAMYL
PENTACHLOROPHENOL
PICLORAM
SIMAZINE
TOTAL POLYCHLORINATED BIPHENYLS (PCB)
TOXAPHENE
Returned To Compliance - Aug 24, 2024 1
171Jan 01, 2024 Mar 31, 2024EP-A SOC Chemical Late/Nonreporting - 29
1,2-DIBROMO-3-CHLOROPROPANE
2,4,5-TP
2,4-D
ATRAZINE
BENZO(A)PYRENE
BHC-GAMMA
CARBOFURAN
CHLORDANE
DALAPON
DI(2-ETHYLHEXYL) ADIPATE
DI(2-ETHYLHEXYL) PHTHALATE
DINOSEB
DIQUAT
ENDOTHALL
ENDRIN
ETHYLENE DIBROMIDE
GLYPHOSATE
HEPTACHLOR
HEPTACHLOR EPOXIDE
HEXACHLOROBENZENE
HEXACHLOROCYCLOPENTADIENE
LASSO
METHOXYCHLOR
OXAMYL
PENTACHLOROPHENOL
PICLORAM
SIMAZINE
TOTAL POLYCHLORINATED BIPHENYLS (PCB)
TOXAPHENE
Returned To Compliance - Aug 24, 2024 1
142Feb 01, 2024 Feb 29, 2024WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3
CHLORINE
SWTR
TURBIDITY
Returned To Compliance - Apr 04, 2024 1
137Jul 01, 2023 Dec 31, 2023DIST-A LCR LCR Late/Nonreporting - 1
LEAD & COPPER RULE
Returned To Compliance - Feb 08, 2024 1
136Oct 01, 2023 Dec 31, 2023EP-A SOC Chemical Late/Nonreporting - 29
1,2-DIBROMO-3-CHLOROPROPANE
2,4,5-TP
2,4-D
ATRAZINE
BENZO(A)PYRENE
BHC-GAMMA
CARBOFURAN
CHLORDANE
DALAPON
DI(2-ETHYLHEXYL) ADIPATE
DI(2-ETHYLHEXYL) PHTHALATE
DINOSEB
DIQUAT
ENDOTHALL
ENDRIN
ETHYLENE DIBROMIDE
GLYPHOSATE
HEPTACHLOR
HEPTACHLOR EPOXIDE
HEXACHLOROBENZENE
HEXACHLOROCYCLOPENTADIENE
LASSO
METHOXYCHLOR
OXAMYL
PENTACHLOROPHENOL
PICLORAM
SIMAZINE
TOTAL POLYCHLORINATED BIPHENYLS (PCB)
TOXAPHENE
Returned To Compliance - Aug 24, 2024 1
107Jan 01, 2023 Dec 31, 2023EP-A VOC Chemical Late/Nonreporting - 21
1,1,1-TRICHLOROETHANE
1,1,2-TRICHLOROETHANE
1,1-DICHLOROETHYLENE
1,2,4-TRICHLOROBENZENE
1,2-DICHLOROETHANE
1,2-DICHLOROPROPANE
BENZENE
CARBON TETRACHLORIDE
CHLOROBENZENE
CIS-1,2-DICHLOROETHYLENE
DICHLOROMETHANE
ETHYLBENZENE
O-DICHLOROBENZENE
P-DICHLOROBENZENE
STYRENE
TETRACHLOROETHYLENE
TOLUENE
TRANS-1,2-DICHLOROETHYLENE
TRICHLOROETHYLENE
VINYL CHLORIDE
XYLENES, TOTAL
Returned To Compliance - Jan 31, 2024 1
86Jan 01, 2023 Dec 31, 2023EP-A IOC Chemical Late/Nonreporting - 12
ANTIMONY, TOTAL
BARIUM
BERYLLIUM, TOTAL
CADMIUM
CHROMIUM
CYANIDE
FLUORIDE
MERCURY
NICKEL
SELENIUM
SODIUM
THALLIUM, TOTAL
Returned To Compliance - Jan 31, 2024 1
74Jan 01, 2023 Dec 31, 2023EP-A NO2 Chemical Late/Nonreporting - 1 Returned To Compliance - Jan 31, 2024 1
73Jan 01, 2023 Dec 31, 2023EP-A ARS Chemical Late/Nonreporting - 1 Returned To Compliance - Jan 31, 2024 1
72Jan 01, 2023 Dec 31, 2023EP-A NO3 Chemical Late/Nonreporting - 1 Returned To Compliance - Jan 31, 2024 5
71Nov 01, 2023 Nov 30, 2023WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3
CHLORINE
SWTR
TURBIDITY
Returned To Compliance - Jan 05, 2024 1 12/29/2023
68Jun 01, 2023 Jun 30, 2023WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3
CHLORINE
SWTR
TURBIDITY
Returned To Compliance - Aug 04, 2023 1 6/13/2023
65Apr 01, 2023 Jun 30, 2023EP-A SOC Chemical Late/Nonreporting - 29
1,2-DIBROMO-3-CHLOROPROPANE
2,4,5-TP
2,4-D
ATRAZINE
BENZO(A)PYRENE
BHC-GAMMA
CARBOFURAN
CHLORDANE
DALAPON
DI(2-ETHYLHEXYL) ADIPATE
DI(2-ETHYLHEXYL) PHTHALATE
DINOSEB
DIQUAT
ENDOTHALL
ENDRIN
ETHYLENE DIBROMIDE
GLYPHOSATE
HEPTACHLOR
HEPTACHLOR EPOXIDE
HEXACHLOROBENZENE
HEXACHLOROCYCLOPENTADIENE
LASSO
METHOXYCHLOR
OXAMYL
PENTACHLOROPHENOL
PICLORAM
SIMAZINE
TOTAL POLYCHLORINATED BIPHENYLS (PCB)
TOXAPHENE
Returned To Compliance - Sep 08, 2023 1
36Jan 01, 2023 Jun 30, 2023DIST-A LCR LCR Late/Nonreporting - 1
LEAD & COPPER RULE
Returned To Compliance - Feb 08, 2024 1
34May 01, 2023 May 31, 2023WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3
CHLORINE
SWTR
TURBIDITY
Returned To Compliance - Aug 04, 2023 1 6/13/2023
35Apr 01, 2023 Apr 30, 2023WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3
CHLORINE
SWTR
TURBIDITY
Returned To Compliance - Aug 04, 2023 1 6/13/2023
29Jan 01, 2023 Mar 31, 2023EP-A SOC Chemical Late/Nonreporting - 29
1,2-DIBROMO-3-CHLOROPROPANE
2,4,5-TP
2,4-D
ATRAZINE
BENZO(A)PYRENE
BHC-GAMMA
CARBOFURAN
CHLORDANE
DALAPON
DI(2-ETHYLHEXYL) ADIPATE
DI(2-ETHYLHEXYL) PHTHALATE
DINOSEB
DIQUAT
ENDOTHALL
ENDRIN
ETHYLENE DIBROMIDE
GLYPHOSATE
HEPTACHLOR
HEPTACHLOR EPOXIDE
HEXACHLOROBENZENE
HEXACHLOROCYCLOPENTADIENE
LASSO
METHOXYCHLOR
OXAMYL
PENTACHLOROPHENOL
PICLORAM
SIMAZINE
TOTAL POLYCHLORINATED BIPHENYLS (PCB)
TOXAPHENE
Returned To Compliance - Sep 08, 2023 1
SYSTEM SCORE SUMMARY
Learn about system scores		Unaddressed Points:
Number of years the oldest violation has been unaddressed (n):
System Score:
Points under formal enforcement:
Points RTC'd: 		1
0
1
0
21

Violation history was last updated on 11/21/2024, 3 hours ago.

For questions regarding these violations contact either:

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