Public Water System: Cambridge 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: MA3049000
Type: Community water system
EPA Region: 01
Primary Service Area: Residential Area
Primary Source: Surface water
Population Served: 105,162
Contact Information
CAMBRIDGE WATER DEPARTMENT
TIMOTHY W D MACDONALD
250 FRESH POND PKWY
CAMBRIDGE, MA 02138

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   (1)
chlorate 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
2015 2015-04-06 20 210 220
2015 2015-04-06 20 210 210
2015 2015-01-12 20 210 180
2015 2015-01-12 20 210 170
2014 2014-10-07 20 210 300
2014 2014-10-07 20 210 300
2014 2014-07-21 20 210 230
2014 2014-07-21 20 210 240

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
estriol 0.0008 0.35 < 0.0008 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.0008 0.35 < 0.0008
2015 2015-01-12 0.0008 0.35 < 0.0008
2014 2014-10-07 0.0008 0.35 < 0.0008
2014 2014-07-21 0.0008 0.35 < 0.0008
equilin 0.004 0.35 < 0.004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.004 0.35 < 0.004
2015 2015-01-12 0.004 0.35 < 0.004
2014 2014-10-07 0.004 0.35 < 0.004
2014 2014-07-21 0.004 0.35 < 0.004
17-alpha-ethynylestradiol 0.0009 0.035 < 0.0009 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.0009 0.035 < 0.0009
2015 2015-01-12 0.0009 0.035 < 0.0009
2014 2014-10-07 0.0009 0.035 < 0.0009
2014 2014-07-21 0.0009 0.035 < 0.0009
17-beta-estradiol 0.0004 0.0009 < 0.0004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.0004 0.0009 < 0.0004
2015 2015-01-12 0.0004 0.0009 < 0.0004
2014 2014-10-07 0.0004 0.0009 < 0.0004
2014 2014-07-21 0.0004 0.0009 < 0.0004
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.03 6.14 < 0.03
2015 2015-01-12 0.03 6.14 < 0.03
2014 2014-10-07 0.03 6.14 < 0.03
2014 2014-07-21 0.03 6.14 < 0.03
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.02 0.07 < 0.02
2015 2015-01-12 0.02 0.07 < 0.02
2014 2014-10-07 0.02 0.07 < 0.02
2014 2014-07-21 0.02 0.07 < 0.02
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.03 0 < 0.03
2015 2015-01-12 0.03 0 < 0.03
2014 2014-10-07 0.03 0 < 0.03
2014 2014-07-21 0.03 0 < 0.03
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.04 0.07 < 0.04
2015 2015-01-12 0.04 0.07 < 0.04
2014 2014-10-07 0.04 0.07 < 0.04
2014 2014-07-21 0.04 0.07 < 0.04
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.1 0.0103 < 0.1
2015 2015-01-12 0.1 0.0103 < 0.1
2014 2014-10-07 0.1 0.0103 < 0.1
2014 2014-07-21 0.1 0.0103 < 0.1
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.03 0.0004 < 0.03
2015 2015-01-12 0.03 0.0004 < 0.03
2014 2014-10-07 0.03 0.0004 < 0.03
2014 2014-07-21 0.03 0.0004 < 0.03
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.06 90 < 0.06
2015 2015-01-12 0.06 90 < 0.06
2014 2014-10-07 0.06 90 < 0.06
2014 2014-07-21 0.06 90 < 0.06
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.07 0.35 < 0.07
2015 2015-01-12 0.07 0.35 < 0.07
2014 2014-10-07 0.07 0.35 < 0.07
2014 2014-07-21 0.07 0.35 < 0.07
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.08 0 < 0.08
2015 2015-01-12 0.08 0 < 0.08
2014 2014-10-07 0.08 0 < 0.08
2014 2014-07-21 0.08 0 < 0.08
vanadium 0.2 21 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.2 21 < 0.2
2015 2015-04-06 0.2 21 < 0.2
2015 2015-01-12 0.2 21 < 0.2
2015 2015-01-12 0.2 21 < 0.2
2014 2014-11-06 0.2 21 < 0.2
2014 2014-11-06 0.2 21 < 0.2
2014 2014-07-21 0.2 21 < 0.2
2014 2014-07-21 0.2 21 < 0.2
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.02 0 < 0.02
2015 2015-01-12 0.02 0 < 0.02
2014 2014-10-07 0.02 0 < 0.02
2014 2014-07-21 0.02 0 < 0.02
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.01 0 < 0.01
2015 2015-01-12 0.01 0 < 0.01
2014 2014-10-07 0.01 0 < 0.01
2014 2014-07-21 0.01 0 < 0.01
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 1 70 < 1
2015 2015-04-06 1 70 < 1
2015 2015-01-12 1 70 < 1
2015 2015-01-12 1 70 < 1
2014 2014-11-06 1 70 < 1
2014 2014-11-06 1 70 < 1
2014 2014-07-21 1 70 < 1
2014 2014-07-21 1 70 < 1
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.2 2.69 < 0.2
2015 2015-01-12 0.2 2.69 < 0.2
2014 2014-10-07 0.2 2.69 < 0.2
2014 2014-07-21 0.2 2.69 < 0.2
chromium 0.2 100 0.1575 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.2 100 0.21
2015 2015-04-06 0.2 100 0.23
2015 2015-01-12 0.2 100 < 0.2
2015 2015-01-12 0.2 100 0.21
2014 2014-11-06 0.2 100 0.34
2014 2014-11-06 0.2 100 0.27
2014 2014-07-21 0.2 100 < 0.2
2014 2014-07-21 0.2 100 < 0.2
4-androstene-3,17-dione 0.0003 0 < 0.0003 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.0003 0 < 0.0003
2015 2015-01-12 0.0003 0 < 0.0003
2014 2014-10-07 0.0003 0 < 0.0003
2014 2014-07-21 0.0003 0 < 0.0003
strontium 0.3 1500 146.25 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.3 1500 140
2015 2015-04-06 0.3 1500 140
2015 2015-01-12 0.3 1500 130
2015 2015-01-12 0.3 1500 130
2014 2014-11-06 0.3 1500 180
2014 2014-11-06 0.3 1500 170
2014 2014-07-21 0.3 1500 140
2014 2014-07-21 0.3 1500 140
molybdenum 1 40 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 1 40 < 1
2015 2015-04-06 1 40 < 1
2015 2015-01-12 1 40 < 1
2015 2015-01-12 1 40 < 1
2014 2014-11-06 1 40 < 1
2014 2014-11-06 1 40 < 1
2014 2014-07-21 1 40 < 1
2014 2014-07-21 1 40 < 1
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.09 0 < 0.09
2015 2015-01-12 0.09 0 < 0.09
2014 2014-10-07 0.09 0 < 0.09
2014 2014-07-21 0.09 0 < 0.09
estrone 0.002 0.35 < 0.002 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.002 0.35 < 0.002
2015 2015-01-12 0.002 0.35 < 0.002
2014 2014-10-07 0.002 0.35 < 0.002
2014 2014-07-21 0.002 0.35 < 0.002
testosterone 0.0001 0 < 0.0001 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.0001 0 < 0.0001
2015 2015-01-12 0.0001 0 < 0.0001
2014 2014-10-07 0.0001 0 < 0.0001
2014 2014-07-21 0.0001 0 < 0.0001
chromium-6 0.03 0 0.0563 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.03 0 0.049
2015 2015-04-06 0.03 0 0.043
2015 2015-01-12 0.03 0 0.051
2015 2015-01-12 0.03 0 0.051
2014 2014-10-07 0.03 0 0.056
2014 2014-10-07 0.03 0 0.058
2014 2014-07-21 0.03 0 0.068
2014 2014-07-21 0.03 0 0.074
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-04-06 0.2 140 < 0.2
2015 2015-01-12 0.2 140 < 0.2
2014 2014-10-07 0.2 140 < 0.2
2014 2014-07-21 0.2 140 < 0.2

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
5164 lead 2017-01-01 2017-12-31 0.007mg/L
4340 lead 2012-06-01 2014-12-31 0.005mg/L
3676 lead 2011-01-01 2011-12-31 0.005mg/L
3098 lead 2008-01-01 2008-12-31 0.009mg/L

Violations


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

Compliance Dates Rule Violation Type Contaminant Name Status
1992-01-01 - 2000-05-05 Surface Water Treatment Rule Failure to Filter (SWTR) Surface Water Treatment Rule Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Endothall Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Glyphosate Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Di(2-ethylhexyl) adipate Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular OXAMYL Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Simazine Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Di(2-ethylhexyl) phthalate Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Picloram Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Dinoseb Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Hexachlorocyclopentadiene Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Aldicarb sulfoxide Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Aldicarb sulfone Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Carbofuran Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Aldicarb Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Atrazine Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular LASSO Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular 2,3,7,8-TCDD Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Heptachlor Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Heptachlor epoxide Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular 2,4-D Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular 2,4,5-TP Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular HEXACHLOROBENZENE Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Benzo(a)pyrene Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Pentachlorophenol Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Total Polychlorinated Biphenyls (PCB) Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular 1,2-DIBROMO-3-CHLOROPROPANE Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular ETHYLENE DIBROMIDE Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Chlordane Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Endrin Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular BHC-GAMMA Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Methoxychlor Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Toxaphene Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Dalapon Known
1997-10-01 - 1997-12-31 Synthetic Organic Chemicals Monitoring, Regular Diquat Known
1994-08-01 - 1994-08-31 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known

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.