Public Water System: Waltham Water Department

MyTapWater.org's tap water quality report is the compilation of data collected from federal, state, and local government agencies, most prominently the EPA. We strive to populate the report with the latest data concerning water contaminants, lead and copper levels, and water quality violations. We only collect drinking water data from public water systems.

PWS Service Information
PWS ID: MA3308000
Type: Community water system
EPA Region: 01
Primary Service Area: Residential Area
Primary Source: Surface water purchased
Population Served: 60,630
Contact Information
WALTHAM WATER DEPARTMENT
STEPHEN A CASAZZA
167 LEXINGTON STREET
WALTHAM, MA 02452

This public water system services 1 zip code in 1 municipality in 1 county.

Summary Results


A summary view of the the times a water contaminant was tested and found to exceed the level set by the EPA (the MCL).

Maximum Contaminant Levels Exceeded (by year):

2013   (0) 2014   (1) 2015   (0)
chlorate

Contaminant Detailed Results


This a view of violations of maximum contaminant levels. In the expanded view you can see each know test date for a given contaminant, the result of the test, the minimum level that can be recognized in a test (MRL), and upper limit that is considered healthy (HRL).

chlorate
Is this in your home's pipes?

Year Test Date MRL HRL Test Result
2014 2014-10-23 20 210 146
2014 2014-10-23 20 210 154
2014 2014-07-23 20 210 214
2014 2014-07-23 20 210 156
2014 2014-04-23 20 210 53.4
2014 2014-04-23 20 210 51.7
2014 2014-01-21 20 210 39.7
2014 2014-01-21 20 210 39.9

Other Water Contaminants Tested


The following contaminants were tested and within national EPA guidelines.

The last mile of pipe makes a big difference, learn more about testing your water.

Contaminant MRL HRL Avg Result
chromium 0.2 100 0.205 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.2 100 0.29
2014 2014-10-23 0.2 100 0.25
2014 2014-07-23 0.2 100 0.23
2014 2014-07-23 0.2 100 0.2
2014 2014-04-23 0.2 100 0.24
2014 2014-04-23 0.2 100 < 0.2
2014 2014-01-21 0.2 100 0.21
2014 2014-01-21 0.2 100 0.22
chromium-6 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.03 0 < 0.03
2014 2014-10-23 0.03 0 < 0.03
2014 2014-07-23 0.03 0 < 0.03
2014 2014-07-23 0.03 0 < 0.03
2014 2014-04-23 0.03 0 < 0.03
2014 2014-04-23 0.03 0 < 0.03
2014 2014-01-21 0.03 0 < 0.03
2014 2014-01-21 0.03 0 < 0.03
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.04 0.07 < 0.04
2014 2014-07-23 0.04 0.07 < 0.04
2014 2014-04-23 0.04 0.07 < 0.04
2014 2014-01-21 0.04 0.07 < 0.04
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 1 70 < 1
2014 2014-10-23 1 70 < 1
2014 2014-07-23 1 70 < 1
2014 2014-07-23 1 70 < 1
2014 2014-04-23 1 70 < 1
2014 2014-04-23 1 70 < 1
2014 2014-01-21 1 70 < 1
2014 2014-01-21 1 70 < 1
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.09 0 < 0.09
2014 2014-07-23 0.09 0 < 0.09
2014 2014-04-23 0.09 0 < 0.09
2014 2014-01-21 0.09 0 < 0.09
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.01 0 < 0.01
2014 2014-07-23 0.01 0 < 0.01
2014 2014-04-23 0.01 0 < 0.01
2014 2014-01-21 0.01 0 < 0.01
molybdenum 1 40 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 1 40 < 1
2014 2014-10-23 1 40 < 1
2014 2014-07-23 1 40 < 1
2014 2014-07-23 1 40 < 1
2014 2014-04-23 1 40 < 1
2014 2014-04-23 1 40 < 1
2014 2014-01-21 1 40 < 1
2014 2014-01-21 1 40 < 1
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.02 0.07 < 0.02
2014 2014-07-23 0.02 0.07 < 0.02
2014 2014-04-23 0.02 0.07 < 0.02
2014 2014-01-21 0.02 0.07 < 0.02
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.02 0 < 0.02
2014 2014-07-23 0.02 0 < 0.02
2014 2014-04-23 0.02 0 < 0.02
2014 2014-01-21 0.02 0 < 0.02
17-beta-estradiol 0.0004 0.0009 < 0.0004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-02-11 0.0004 0.0009 < 0.0004
2014 2014-07-23 0.0004 0.0009 < 0.0004
2014 2014-04-23 0.0004 0.0009 < 0.0004
2014 2014-01-21 0.0004 0.0009 < 0.0004
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.03 0 < 0.03
2014 2014-07-23 0.03 0 < 0.03
2014 2014-04-23 0.03 0 < 0.03
2014 2014-01-21 0.03 0 < 0.03
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.03 6.14 < 0.03
2014 2014-07-23 0.03 6.14 < 0.03
2014 2014-04-23 0.03 6.14 < 0.03
2014 2014-01-21 0.03 6.14 < 0.03
estrone 0.002 0.35 < 0.002 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-02-11 0.002 0.35 < 0.002
2014 2014-07-23 0.002 0.35 < 0.002
2014 2014-04-23 0.002 0.35 < 0.002
2014 2014-01-21 0.002 0.35 < 0.002
4-androstene-3,17-dione 0.0003 0 < 0.0003 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-02-11 0.0003 0 < 0.0003
2014 2014-07-23 0.0003 0 < 0.0003
2014 2014-04-23 0.0003 0 < 0.0003
2014 2014-01-21 0.0003 0 < 0.0003
17-alpha-ethynylestradiol 0.0009 0.035 < 0.0009 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-02-11 0.0009 0.035 < 0.0009
2014 2014-07-23 0.0009 0.035 < 0.0009
2014 2014-04-23 0.0009 0.035 < 0.0009
2014 2014-01-21 0.0009 0.035 < 0.0009
strontium 0.3 1500 38.8125 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.3 1500 49.4
2014 2014-10-23 0.3 1500 41.4
2014 2014-07-23 0.3 1500 35.1
2014 2014-07-23 0.3 1500 34.8
2014 2014-04-23 0.3 1500 32.5
2014 2014-04-23 0.3 1500 34.8
2014 2014-01-21 0.3 1500 41.4
2014 2014-01-21 0.3 1500 41.1
testosterone 0.0001 0 < 0.0001 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-02-11 0.0001 0 < 0.0001
2014 2014-07-23 0.0001 0 < 0.0001
2014 2014-04-23 0.0001 0 < 0.0001
2014 2014-01-21 0.0001 0 < 0.0001
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.07 0.35 < 0.07
2014 2014-07-23 0.07 0.35 < 0.07
2014 2014-06-02 0.07 0.35 < 0.07
2014 2014-01-21 0.07 0.35 < 0.07
estriol 0.0008 0.35 < 0.0008 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-02-11 0.0008 0.35 < 0.0008
2014 2014-07-23 0.0008 0.35 < 0.0008
2014 2014-04-23 0.0008 0.35 < 0.0008
2014 2014-01-21 0.0008 0.35 < 0.0008
vanadium 0.2 21 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.2 21 < 0.2
2014 2014-10-23 0.2 21 < 0.2
2014 2014-07-23 0.2 21 < 0.2
2014 2014-07-23 0.2 21 < 0.2
2014 2014-04-23 0.2 21 < 0.2
2014 2014-04-23 0.2 21 < 0.2
2014 2014-01-21 0.2 21 < 0.2
2014 2014-01-21 0.2 21 < 0.2
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.08 0 < 0.08
2014 2014-07-23 0.08 0 < 0.08
2014 2014-04-23 0.08 0 < 0.08
2014 2014-01-21 0.08 0 < 0.08
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.1 0.0103 < 0.1
2014 2014-07-23 0.1 0.0103 < 0.1
2014 2014-04-23 0.1 0.0103 < 0.1
2014 2014-01-21 0.1 0.0103 < 0.1
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.06 90 < 0.06
2014 2014-07-23 0.06 90 < 0.06
2014 2014-04-23 0.06 90 < 0.06
2014 2014-01-21 0.06 90 < 0.06
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.03 0.0004 < 0.03
2014 2014-07-23 0.03 0.0004 < 0.03
2014 2014-04-23 0.03 0.0004 < 0.03
2014 2014-01-21 0.03 0.0004 < 0.03
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.2 140 < 0.2
2014 2014-07-23 0.2 140 < 0.2
2014 2014-04-23 0.2 140 < 0.2
2014 2014-01-21 0.2 140 < 0.2
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-23 0.2 2.69 < 0.2
2014 2014-07-23 0.2 2.69 < 0.2
2014 2014-04-23 0.2 2.69 < 0.2
2014 2014-01-21 0.2 2.69 < 0.2
equilin 0.004 0.35 < 0.004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-02-11 0.004 0.35 < 0.004
2014 2014-07-23 0.004 0.35 < 0.004
2014 2014-04-23 0.004 0.35 < 0.004
2014 2014-01-21 0.004 0.35 < 0.004

Lead and Copper Data


Lead and copper are recorded separately from other contaminants because of the Lead and Copper Rule. As with all other results, these are the findings at the water supply. Lead and copper can be — and often are — added to drinking water in between the water facility and a tap.

Sample ID Contaminant Sampling Start Date Sampling End Date Result
124 lead 2017-01-01 2017-12-31 0.00195mg/L
121 lead 2016-01-01 2016-12-31 0.00245mg/L
118 lead 2015-01-01 2015-12-31 0.0026mg/L
115 lead 2014-01-01 2014-12-31 0.0104mg/L
94 lead 2013-01-01 2013-12-31 0.00273mg/L
93 lead 2012-01-01 2012-12-31 0.00268mg/L
56 lead 2011-07-01 2011-12-31 0.00459mg/L
55 lead 2011-01-01 2011-06-30 0.00191mg/L
54 lead 2010-07-01 2010-12-31 0.00291mg/L
53 lead 2010-01-01 2010-06-30 0.00231mg/L
52 lead 2009-07-01 2009-12-31 0.00239mg/L
49 lead 2009-01-01 2009-06-30 0.0014mg/L
51 lead 2008-07-01 2008-12-31 0.00346mg/L
48 lead 2008-01-01 2008-06-30 0.0031mg/L

Violations


Known violations of the Safe Drinking Water Act as recorded by the EPA.

Compliance Dates Rule Violation Type Contaminant Name Status
2013-09-01 - 2013-09-30 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
2012-09-01 - 2012-09-30 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
2012-08-01 - 2012-08-31 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
2008-05-01 - 2008-05-31 Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Known
1992-01-01 - 2000-05-05 Surface Water Treatment Rule Failure to Filter (SWTR) Surface Water Treatment Rule Known
1991-07-01 - 1991-07-31 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
1991-07-01 - 1991-07-31 Total Coliform Rule Maximum Contaminant Level Violation, Acute (TCR) Coliform (TCR) Returned to Compliance
1992-01-01 - N/A Lead and Copper Rule Public Education Lead and Copper Rule Returned to Compliance
1993-01-01 - N/A Lead and Copper Rule Public Education Lead and Copper Rule Returned to Compliance
1997-01-01 - N/A Lead and Copper Rule Public Education Lead and Copper Rule Returned to Compliance
1994-01-01 - N/A Lead and Copper Rule Public Education Lead and Copper Rule Returned to Compliance
1999-01-01 - N/A Lead and Copper Rule Public Education Lead and Copper Rule Returned to Compliance
2015-07-01 - N/A Lead and Copper Rule Follow-up Or Routine LCR Tap M/R Lead and Copper Rule Returned to Compliance

What My Water Data Means


Water data isn't always easy to interpret, but by following the links on this page you should be able to have most of your questions answered. By clicking the name of a water contaminant or secondary substance you can learn about that specific substance. Ultimately this page should give you some insight towards learning if your water is safe, what water filter you should buy (if any), and how well your local water compares against other sources.

Sources


The origin of MyTapWater.org's water data is explained on our Data Sources page.

Why Is My Water Data Not More Recent?


The recency of the data for your ZIP code depends on the last your water source was tested, by a federal, state, or local agency. More information about the timing can be determined by learning about the dataset in question and seeing how often the EPA (other another governing body) mandated testing.