Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MA3056000
PWS Name	CHELMSFORD WATER DISTRICT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	28750
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
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2	Returned to Compliance	01-JUL-2014	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	95V0001	Known	01-DEC-1994	31-DEC-1994	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9220001	Known	01-JAN-1992	31-JAN-1992	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9120001	Known	01-FEB-1991	28-FEB-1991	Yes

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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
16	2	SOX	State Compliance achieved	11-AUG-2014	State	LATE CCR
17	1	SOX	State Compliance achieved	31-DEC-2013	State	EPA RTC - ADURHAM 8/3/2015
2	95V0001	SFL	State Administrative/Compliance Order without penalty issued	31-JAN-1995	State	COMPLIANCE ACHIEVED
9220001	9220001	SIF	State Public Notification received	12-MAR-1992	State	-
91E0001	9120001	SIE	State Public Notification requested	15-MAR-1991	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WARREN AVE. TUB. WELLS	1	Yes	Well	Ground water	Emergency	Inactive
RIVERNECK RD. GP WELL 1	9	Yes	Well	Ground water	Permanent	Active
CROOKED SPRING GP WELL 2	8	Yes	Well	Ground water	Permanent	Active
MILL RD. GP WELL 1R	72	Yes	Well	Ground water	Permanent	Active
MILL RD. GP WELL 2R	70	Yes	Well	Ground water	Permanent	Active
TURNPIKE RD. GP WELL 2	68	Yes	Well	Ground water	Permanent	Active
SMITH ST. GP WELL 3	65	Yes	Well	Ground water	Permanent	Active
MEADOWBROOK #3 WELLFIELD	62	Yes	Well	Ground water	Permanent	Active
CROOKED SPRING GP WELL 1	6	Yes	Well	Ground water	Permanent	Active
JORDAN RD. GP WELL	3	Yes	Well	Ground water	Permanent	Active
TURNPIKE RD. GP WELL 1	2	Yes	Well	Ground water	Permanent	Active
SMITH ST. GP WELL 2	18	Yes	Well	Ground water	Permanent	Active
CANAL ST. GP WELL 2	17	Yes	Well	Ground water	Permanent	Active
CANAL ST. GP WELL 1	15	Yes	Well	Ground water	Permanent	Active
MILL RD. GP WELL 3	13	Yes	Well	Ground water	Permanent	Active
MEADOWBROOK RD. GP WELL 1	12	Yes	Well	Ground water	Permanent	Active
RIVERNECK RD. GP WELL 2	11	Yes	Well	Ground water	Permanent	Active
MEADOWBROOK RD. GP WELL 2	10	Yes	Well	Ground water	Permanent	Active
SMITH ST. GP WELL 1	7	Yes	Well	Ground water	Emergency	Inactive
MILL RD. GP WELL 1	5	Yes	Well	Ground water	Emergency	Inactive
WARREN AVE. GP WELL #1	4	Yes	Well	Ground water	Emergency	Inactive
WARREN AVE. GP WELL # 2	16	Yes	Well	Ground water	Emergency	Inactive
MILL RD. GP WELL 2	14	Yes	Well	Ground water	Emergency	Inactive
STATION A	19	No	Pump Facility	-	-	Active
TURNPIKE RD. GP WELL 1 PUMP	20	No	Pump Facility	-	-	Active
RIVERNECK #1	21	No	Pump Facility	-	-	Active
RIVERNECK #2	22	No	Pump Facility	-	-	Active
CANAL STREET #2	23	No	Pump Facility	-	-	Active
MEADOWBROOK #2	25	No	Pump Facility	-	-	Active
MEADOWBROOK #1	26	No	Pump Facility	-	-	Active
CROOKED SPRING #1	27	No	Pump Facility	-	-	Active
CROOKED SPRING #2	28	No	Pump Facility	-	-	Active
CANAL STREET #1	29	No	Pump Facility	-	-	Active
MILL ROAD #2	30	No	Pump Facility	-	-	Active
MILL ROAD #3	31	No	Pump Facility	-	-	Active
JORDAN WELL	32	No	Pump Facility	-	-	Active
SMITH STREET WELL #2	33	No	Pump Facility	-	-	Active
SMITH STREET WELL #1	34	No	Pump Facility	-	-	Active
MILL ROAD #1	35	No	Pump Facility	-	-	Active
MEADOWBROOK #3 WELLFIELD PUMP	64	No	Pump Facility	-	-	Active
SMITH ST. GP WELL 3 PUMP	66	No	Pump Facility	-	-	Active
TURNPIKE RD. GP WELL 2 PUMP	69	No	Pump Facility	-	-	Active
MILL RD. GP WELL 2R PUMP	71	No	Pump Facility	-	-	Active
MILL RD. GP WELL 1R PUMP	73	No	Pump Facility	-	-	Active
FAYE STREET BOOSTER STATION	74	No	Pump Facility	-	-	Active
ROBIN HILL BOOSTER STATION	75	No	Pump Facility	-	-	Active
LOCKE ROAD BOOSTER STATION	76	No	Pump Facility	-	-	Active
TURNPIKE	36	No	Storage	-	-	Active
AMBLE RD.	37	No	Storage	-	-	Active
HILLSIDE TANK ROBIN HILL 1	39	No	Storage	-	-	Active

1 - 50 of 70

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
SMITH STREET WATER TREATMENT PLANT	42	pH Adjustment	Corrosion control
SMITH STREET WATER TREATMENT PLANT	42	Hypochlorination, Post	Disinfection
SMITH STREET WATER TREATMENT PLANT	42	Filtration, Ultrafiltration	Particulate removal
SMITH STREET WATER TREATMENT PLANT	42	pH Adjustment	Corrosion control
SMITH STREET WATER TREATMENT PLANT	42	pH Adjustment, Pre	Inorganics removal
SMITH STREET WATER TREATMENT PLANT	42	Aeration, Packed Tower	Iron removal
SMITH STREET WATER TREATMENT PLANT	42	4-Log Treatment of Viruses	Disinfection
MILL RD GP WELL 1	46	Inhibitor, Hexametaphosphate	Corrosion control
MILL RD GP WELL 1	46	pH Adjustment	Corrosion control
MILL RD GP WELL 3	55	Inhibitor, Hexametaphosphate	Corrosion control
MILL RD GP WELL 3	55	Hypochlorination, Post	Disinfection
MILL RD GP WELL 3	55	pH Adjustment	Corrosion control
RIVERNECK ROAD WTP	61	Filtration, Greensand	Iron removal
RIVERNECK ROAD WTP	61	Filtration, Greensand	Manganese removal
RIVERNECK ROAD WTP	61	Aeration, Packed Tower	Organics removal
RIVERNECK ROAD WTP	61	Hypochlorination, Post	Disinfection
RIVERNECK ROAD WTP	61	pH Adjustment	Corrosion control
RIVERNECK ROAD WTP	61	Hypochlorination, Pre	Disinfection
RIVERNECK ROAD WTP	61	4-Log Treatment of Viruses	Disinfection
RIVERNECK ROAD WTP	61	Permanganate	Iron removal
RIVERNECK ROAD WTP	61	pH Adjustment, Post	Corrosion control
CROOKED SPRING WTP	63	Hypochlorination, Post	Disinfection
CROOKED SPRING WTP	63	Ultraviolet Radiation	Disinfection
CROOKED SPRING WTP	63	pH Adjustment	Corrosion control
CROOKED SPRING WTP	63	Aeration, Packed Tower	Organics removal
CROOKED SPRING WTP	63	Filtration, Greensand	Iron removal
CROOKED SPRING WTP	63	Filtration, Greensand	Manganese removal
CROOKED SPRING WTP	63	Permanganate	Iron removal
CROOKED SPRING WTP	63	Hypochlorination, Pre	Disinfection
CROOKED SPRING WTP	63	4-Log Treatment of Viruses	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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