Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OH2101412
PWS Name	DEL-CO WATER COMPANY, INC.
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	150000
County Served	Delaware

The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based	Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL	The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique	A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL	The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting	Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other	Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

Violations

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	1350336	Returned to Compliance	01-JAN-2014	30-JUN-2014	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	1350334	Returned to Compliance	01-JAN-2012	31-DEC-2012	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	1349701	Returned to Compliance	01-MAY-2001	31-JUL-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	1349501	Returned to Compliance	01-MAY-2001	31-JUL-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	1349601	Returned to Compliance	01-MAY-2001	31-JUL-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	1153498	Returned to Compliance	01-AUG-1998	31-OCT-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	1153298	Returned to Compliance	01-AUG-1998	31-OCT-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	1153598	Returned to Compliance	01-AUG-1998	31-OCT-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	1153098	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	1151098	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	1151398	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	1151498	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	1151598	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	1150998	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	1152498	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	1152398	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	1152298	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	1152598	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	1152998	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	1151998	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	1151898	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	1151798	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	1152798	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	1151698	Returned to Compliance	01-MAY-1998	31-JUL-1998	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	1150896	Returned to Compliance	01-JAN-1996	30-JUN-1996	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	1150796	Returned to Compliance	01-JAN-1996	30-JUN-1996	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	1156794	Returned to Compliance	01-JAN-1994	31-JAN-1994	Yes
MR	Monitoring, Regular	Inorganic Chemicals	Asbestos	1153893	Returned to Compliance	01-JAN-1993	30-JUN-1993	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	1153793	Returned to Compliance	01-JAN-1993	30-JUN-1993	No

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
8091718	1350336	SOX	State Compliance achieved	06-JAN-2015	State	-
8091717	1350334	SOX	State Compliance achieved	10-JUL-2013	State	-
8091708	1156794	SOX	State Compliance achieved	22-JAN-2008	State	-
8091201	1349501	SOX	State Compliance achieved	12-SEP-2001	State	-
8091201	1349601	SOX	State Compliance achieved	12-SEP-2001	State	-
8091201	1349701	SOX	State Compliance achieved	12-SEP-2001	State	-
8091399	1151798	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1151898	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1151998	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1152298	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1152498	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1152598	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1152798	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1152998	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1153098	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1153298	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1153498	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1153598	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1151698	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1151598	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1151498	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1151398	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1151098	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1150998	SIF	State Public Notification received	04-MAR-1999	State	-
8091399	1152398	SIF	State Public Notification received	04-MAR-1999	State	-
797	1150796	SIF	State Public Notification received	11-DEC-1996	State	-
797	1150896	SIF	State Public Notification received	11-DEC-1996	State	-
294	1153893	SIF	State Public Notification received	18-OCT-1993	State	-
294	1153793	SIF	State Public Notification received	18-OCT-1993	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
DEL-CO OLENTANGY RIVER	21608	Yes	Intake	Surface water	Permanent	Active
OENTANGY WELL 0004	11542	Yes	Well	Ground water	Permanent	Inactive
OLENTANGY WELL 0003	11541	Yes	Well	Ground water	Permanent	Inactive
OLENTANGY WELL 0002	11540	Yes	Well	Ground water	Permanent	Inactive
OLENTANGY WELL 0001	11539	Yes	Well	Ground water	Permanent	Inactive
EAST KNOX WELL 0004	11538	Yes	Well	Ground water	Permanent	Active
EAST KNOX WELL 0003	11537	Yes	Well	Ground water	Permanent	Active
EAST KNOX WELL 0002	11536	Yes	Well	Ground water	Permanent	Active
EAST KNOX WELL 0001	11535	Yes	Well	Ground water	Permanent	Active
OLENTANGY RES #4	39301	Yes	Reservoir	Surface water	Permanent	Active
OLENTANGY RES #3	39300	Yes	Reservoir	Surface water	Permanent	Active
OLENTANGY RES #2	39299	Yes	Reservoir	Surface water	Permanent	Active
MCNAMARA RES #2	39298	Yes	Reservoir	Surface water	Permanent	Active
DEL-CO MCNAMARA RES 1	21807	Yes	Intake	Surface water	Seasonal	Active
mcnamara res 2	149133	Yes	Intake	Surface water	Permanent	Inactive
mcnamara res 1	149132	Yes	Intake	Surface water	Permanent	Inactive
DEL-CO O'SHAUGHNESSY RES - SCIOTO	47470	Yes	Intake	Surface water	Permanent	Active
DEL-CO ALUM CREEK RES	21812	Yes	Intake	Surface water	Permanent	Active
OLENTANGY RES #5	21609	Yes	Intake	Surface water	Permanent	Active
EAST KNOX CLEARWELL	39325	No	Clear Well	-	-	Inactive
ALUM CREEK CLEARWELL	39326	No	Clear Well	-	-	Inactive
OLD STATE CLEARWELL	39327	No	Clear Well	-	-	Inactive
OLENTANGY CLEARWELL	39328	No	Clear Well	-	-	Inactive
DEL-CO DISTRIBUTION	24378	No	Distribution System/Zone	-	-	Active
BS13 SR 61 N OF SR 229	39302	No	Pump Facility	-	-	Active
BS15 SECTION LINE ROAD	39303	No	Pump Facility	-	-	Active
BS16 SUNBURY	39304	No	Pump Facility	-	-	Active
OLENTANGY HS	39306	No	Pump Facility	-	-	Active
BS10 CO RD 19 TANK	39307	No	Pump Facility	-	-	Active
BS14 MCO	39309	No	Pump Facility	-	-	Active
BS09 BIG WALNUT	39311	No	Pump Facility	-	-	Active
BS02 SR 257	39312	No	Pump Facility	-	-	Active
EAST KNOX HS	39313	No	Pump Facility	-	-	Active
ALUM CREEK HS	39314	No	Pump Facility	-	-	Active
BS05 PLUNKETT RD	39315	No	Pump Facility	-	-	Active
BS06 HARRIOTT RD	39317	No	Pump Facility	-	-	Active
OLENTANGY LS	39318	No	Pump Facility	-	-	Active
BS08 WILSON RD	39319	No	Pump Facility	-	-	Active
BS04 CENTER VILLAGE & RED BANK RD	39321	No	Pump Facility	-	-	Active
ALUM CREEK LS	39322	No	Pump Facility	-	-	Active
OLD STATE HS	39305	No	Pump Facility	-	-	Inactive
BS11 CR 228	39308	No	Pump Facility	-	-	Inactive
EAST KNOX LS	39310	No	Pump Facility	-	-	Inactive
BS07 SR 61 N OF I-71	39316	No	Pump Facility	-	-	Inactive
BS12 MORROW CO OFFICE	39320	No	Pump Facility	-	-	Inactive
BALE KENYON LS	39323	No	Pump Facility	-	-	Inactive
OLD STATE LS	39324	No	Pump Facility	-	-	Inactive
Del-Co East Plant P03	130286	No	Sampling Station	-	-	Inactive
Del-Co Old State Rd STU 3 P04	143994	No	Sampling Station	-	-	Inactive
Del-Co Water Co Inc Olentangy P01	85416	No	Sampling Station	-	-	Inactive

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
RE SCOTT WTP (ALUM CK)	2727	Fluoridation	Other
RE SCOTT WTP (ALUM CK)	2727	Innovative	Inorganics removal
RE SCOTT WTP (ALUM CK)	2727	Innovative	Inorganics removal
RE SCOTT WTP (ALUM CK)	2727	Lime - Soda Ash Addition	Inorganics removal
RE SCOTT WTP (ALUM CK)	2727	Rapid Mix	Inorganics removal
RE SCOTT WTP (ALUM CK)	2727	pH Adjustment	Inorganics removal
RE SCOTT WTP (ALUM CK)	2727	Filtration, Rapid Sand	Inorganics removal
RE SCOTT WTP (ALUM CK)	2727	Permanganate	Disinfection
RE SCOTT WTP (ALUM CK)	2727	Activated Carbon, Powdered	Organics removal
RE SCOTT WTP (ALUM CK)	2727	Hypochlorination, Post	Disinfection
RE SCOTT WTP (ALUM CK)	2727	Coagulation	Inorganics removal
RE SCOTT WTP (ALUM CK)	2727	Inhibitor, Orthophosphate	Corrosion control
THOMAS E. STEWARD WTF	2728	Sedimentation	Particulate removal
THOMAS E. STEWARD WTF	2728	Filtration, Rapid Sand	Disinfection by-products control
THOMAS E. STEWARD WTF	2728	Fluoridation	Other
THOMAS E. STEWARD WTF	2728	Inhibitor, Orthophosphate	Corrosion control
THOMAS E. STEWARD WTF	2728	Hypochlorination, Post	Disinfection
THOMAS E. STEWARD WTF	2728	Lime - Soda Ash Addition	Softening (hardness removal)
THOMAS E. STEWARD WTF	2728	pH Adjustment	Other
TF MCNAMARA WTF (OLD STATE)	2729	Sedimentation	Disinfection by-products control
TF MCNAMARA WTF (OLD STATE)	2729	Rapid Mix	Disinfection by-products control
TF MCNAMARA WTF (OLD STATE)	2729	Sedimentation	Disinfection
TF MCNAMARA WTF (OLD STATE)	2729	Filtration, Rapid Sand	Disinfection by-products control
TF MCNAMARA WTF (OLD STATE)	2729	Permanganate	Disinfection
TF MCNAMARA WTF (OLD STATE)	2729	Activated Carbon, Powdered	Organics removal
TF MCNAMARA WTF (OLD STATE)	2729	Coagulation	Softening (hardness removal)
TF MCNAMARA WTF (OLD STATE)	2729	Fluoridation	Other
TF MCNAMARA WTF (OLD STATE)	2729	Hypochlorination, Post	Disinfection
TF MCNAMARA WTF (OLD STATE)	2729	Innovative	Particulate removal
TF MCNAMARA WTF (OLD STATE)	2729	Inhibitor, Orthophosphate	Corrosion control
DEL-CO OLENTANGY WTP	2730	Innovative	Inorganics removal
DEL-CO OLENTANGY WTP	2730	Rapid Mix	Inorganics removal
DEL-CO OLENTANGY WTP	2730	Flocculation	Inorganics removal
DEL-CO OLENTANGY WTP	2730	Sedimentation	Inorganics removal
DEL-CO OLENTANGY WTP	2730	Innovative	Inorganics removal
DEL-CO OLENTANGY WTP	2730	Filtration, Rapid Sand	Inorganics removal
DEL-CO OLENTANGY WTP	2730	Permanganate	Particulate removal
DEL-CO OLENTANGY WTP	2730	Coagulation	Particulate removal
DEL-CO OLENTANGY WTP	2730	Activated Carbon, Powdered	Inorganics removal
DEL-CO OLENTANGY WTP	2730	Lime - Soda Ash Addition	Softening (hardness removal)
DEL-CO OLENTANGY WTP	2730	Rapid Mix	Softening (hardness removal)
DEL-CO OLENTANGY WTP	2730	Innovative	Softening (hardness removal)
DEL-CO OLENTANGY WTP	2730	pH Adjustment	Softening (hardness removal)
DEL-CO OLENTANGY WTP	2730	Filtration, Rapid Sand	Particulate removal
DEL-CO OLENTANGY WTP	2730	Inhibitor, Orthophosphate	Corrosion control
DEL-CO OLENTANGY WTP	2730	Fluoridation	Other
DEL-CO OLENTANGY WTP	2730	Hypochlorination, Post	Disinfection

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For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

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