PlainWater
States → Ohio

DEL-CO WATER COMPANY, INC.

PWS ID: OH2101412 · DELAWARE, Ohio 43015

PFAS Detected

6 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
150,000
Total Violations
108
Health-Based Violations
4
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
55,000
County
Delaware
School/Daycare
No
MCL Violations
0
Monitoring Violations
102
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Atrazine MR 9 2001
LASSO MR 9 2001
Simazine MR 9 2001
Lead and Copper Rule MR 7 2014
Fluoride MR 4 1996
BHC-GAMMA MR 4 1998
Methoxychlor MR 4 1998
Di(2-ethylhexyl) adipate MR 4 1998
OXAMYL MR 4 1998
Di(2-ethylhexyl) phthalate MR 4 1998
Carbofuran MR 4 1998
Pentachlorophenol MR 4 1998
Total Polychlorinated Biphenyls (PCB) MR 4 1998
Asbestos MR 4 1993
Surface Water Treatment Rule TT 4 1994
Benzo(a)pyrene MR 4 1998
Diquat MR 4 1998
Nitrite MR 4 1993
Endothall MR 4 1998
2,4-D MR 4 1998
Picloram MR 4 1998
Arsenic MR 4 1996

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 19 of 300 samples detected PFAS.

Contaminant Date Result MRL Status
PFEESA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 7/11/2023 0.0087 µg/L 0.003 µg/L Detected
11Cl-PF3OUdS 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 7/11/2023 0.0089 µg/L 0.005 µg/L Detected
6:2 FTS 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/11/2023 <0.002 µg/L 0.002 µg/L Not Detected
NFDHA 7/11/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 7/11/2023 0.0063 µg/L 0.003 µg/L Detected
PFTA 7/11/2023 <0.008 µg/L 0.008 µg/L Not Detected
9Cl-PF3ONS 7/11/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFOA 7/11/2023 0.0042 µg/L 0.004 µg/L Detected
NMeFOSAA 7/11/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 7/11/2023 <0.007 µg/L 0.007 µg/L Not Detected
lithium 7/11/2023 <9 µg/L 9 µg/L Not Detected
PFBS 7/11/2023 0.0035 µg/L 0.003 µg/L Detected
PFHpA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/11/2023 <0.002 µg/L 0.002 µg/L Not Detected
9Cl-PF3ONS 7/11/2023 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 7/11/2023 <9 µg/L 9 µg/L Not Detected
6:2 FTS 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.