Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MA3056001
PWS Name	EAST CHELMSFORD WATER DISTRICT
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	2800
County Served	Middlesex

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
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	121	Open	01-JUL-2018	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	111	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	110	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	113	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	98	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	105	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	112	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	118	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	102	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	109	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	99	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	103	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	101	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	107	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	100	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	104	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	114	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	106	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	116	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	115	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	108	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	120	Known	01-JAN-2017	31-MAR-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	97	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	85	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	88	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	87	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	90	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	75	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	82	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	89	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	95	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	79	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	86	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	76	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	80	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	78	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	84	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	77	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	81	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	91	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	83	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	93	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	92	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	74	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	68	Returned to Compliance	01-DEC-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	67	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	58	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	57	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	60	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	45	Returned to Compliance	01-JAN-2011	31-MAR-2011	No

1 - 50 of 126

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
41	121	SFL	State Administrative/Compliance Order without penalty issued	07-DEC-2018	State	NO COLIFORM SAMPLE RESULTS RECEIVED FOR JULY 2018
40	100	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	101	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	102	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	103	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	104	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	105	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	106	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	107	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	108	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	109	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	110	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	111	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	112	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	113	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	114	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	115	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	116	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	118	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	120	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	98	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
40	99	SFL	State Administrative/Compliance Order without penalty issued	02-JUN-2017	State	DID NOT COLLECT 1ST QTR 2017 VOC SAMPLE
36	75	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	76	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	77	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	78	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	79	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	80	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	81	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	82	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	83	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	84	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	85	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	86	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	87	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	88	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	89	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	90	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	91	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	92	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	93	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	95	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
36	97	SOX	State Compliance achieved	03-JAN-2014	State	EPA RTC
39	74	SOX	State Compliance achieved	27-MAR-2013	State	EPA RTC
35	68	SOX	State Compliance achieved	01-FEB-2012	State	RTC PDU for EPA
37	62	SOX	State Compliance achieved	10-MAY-2011	State	EPA RTC
37	61	SOX	State Compliance achieved	10-MAY-2011	State	EPA RTC
37	60	SOX	State Compliance achieved	10-MAY-2011	State	EPA RTC
37	59	SOX	State Compliance achieved	10-MAY-2011	State	EPA RTC
37	58	SOX	State Compliance achieved	10-MAY-2011	State	EPA RTC

1 - 50 of 126

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CHELMSFORD SUPPLY	5	Yes	Consecutive Connection	Ground water	Emergency	Active
CANAL ST. GP WELL #3	7	Yes	Well	Ground water	Permanent	Active
CANAL ST. GP WELL 2	2	Yes	Well	Ground water	Permanent	Active
CANAL ST. GP WELL 1	1	Yes	Well	Ground water	Permanent	Active
LOWELL SUPPLY	3	Yes	Consecutive Connection	Ground water	Permanent	Active
LOWELL SUPPLY	10	Yes	Consecutive Connection	Surface water	Permanent	Active
CANAL ST GP WELL #1 PUMP	11	No	Pump Facility	-	-	Active
CANAL ST. GP WELL 1 PUMP	12	No	Pump Facility	-	-	Active
CANAL ST. GP WELL 2 PUMP	6	No	Pump Facility	-	-	Active
CANAL ST. GP WELL 3 PUMP	8	No	Pump Facility	-	-	Active
PLEASANT STREET STEEL TANK	9	No	Storage	-	-	Active
GROUNDWATER TREATMENT PLANT	4	No	Treatment Plant	-	-	Active

1 - 12 of 12

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
GROUNDWATER TREATMENT PLANT	4	Hypochlorination, Post	Disinfection
GROUNDWATER TREATMENT PLANT	4	Hypochlorination, Pre	Disinfection
GROUNDWATER TREATMENT PLANT	4	Filtration, Greensand	Iron removal
GROUNDWATER TREATMENT PLANT	4	pH Adjustment	Corrosion control
GROUNDWATER TREATMENT PLANT	4	Inhibitor, Orthophosphate	Corrosion control

1 - 5 of 5

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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