Public Water System: Cornell University

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: NY5417686
Type: Community water system
EPA Region: 02
Primary Source: Surface water
Population Served: 31,581
Contact Information
CLARK, JUSTIN
CLARK, JUSTIN
Cornell University WS
101 Caldwell Road
ITHACA, NY 14850

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   (1) 2014   (0) 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
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Year Test Date MRL HRL Test Result
2013 2013-10-22 20 210 365
2013 2013-10-22 20 210 316
2013 2013-07-10 20 210 376
2013 2013-07-10 20 210 478
2013 2013-04-03 20 210 70.4
2013 2013-04-02 20 210 83.7
2013 2013-01-16 20 210 173
2013 2013-01-16 20 210 153

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
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.03 6.14 < 0.03
2013 2013-07-10 0.03 6.14 < 0.03
2013 2013-04-03 0.03 6.14 < 0.03
2013 2013-01-16 0.03 6.14 < 0.03
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.2 140 < 0.2
2013 2013-07-10 0.2 140 < 0.2
2013 2013-04-03 0.2 140 < 0.2
2013 2013-01-16 0.2 140 < 0.2
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.08 0 < 0.08
2013 2013-07-10 0.08 0 < 0.08
2013 2013-04-03 0.08 0 < 0.08
2013 2013-01-16 0.08 0 < 0.08
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.06 90 < 0.06
2013 2013-07-10 0.06 90 < 0.06
2013 2013-04-03 0.06 90 < 0.06
2013 2013-01-16 0.06 90 < 0.06
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.1 0.0103 < 0.1
2013 2013-07-10 0.1 0.0103 < 0.1
2013 2013-04-03 0.1 0.0103 < 0.1
2013 2013-01-16 0.1 0.0103 < 0.1
chromium 0.2 100 0.12 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.2 100 0.27
2013 2013-10-22 0.2 100 0.26
2013 2013-07-10 0.2 100 < 0.2
2013 2013-07-10 0.2 100 0.22
2013 2013-04-03 0.2 100 0.21
2013 2013-04-02 0.2 100 < 0.2
2013 2013-01-16 0.2 100 < 0.2
2013 2013-01-16 0.2 100 < 0.2
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.2 2.69 < 0.2
2013 2013-07-10 0.2 2.69 < 0.2
2013 2013-04-03 0.2 2.69 < 0.2
2013 2013-01-16 0.2 2.69 < 0.2
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 1 70 < 1
2013 2013-10-22 1 70 < 1
2013 2013-07-10 1 70 < 1
2013 2013-07-10 1 70 < 1
2013 2013-04-03 1 70 < 1
2013 2013-04-02 1 70 < 1
2013 2013-01-16 1 70 < 1
2013 2013-01-16 1 70 < 1
chromium-6 0.03 0 0.0135 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.03 0 < 0.03
2013 2013-10-22 0.03 0 0.03
2013 2013-07-10 0.03 0 < 0.03
2013 2013-07-10 0.03 0 < 0.03
2013 2013-04-03 0.03 0 < 0.03
2013 2013-04-02 0.03 0 < 0.03
2013 2013-01-16 0.03 0 0.041
2013 2013-01-16 0.03 0 0.037
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.03 0.0004 < 0.03
2013 2013-07-10 0.03 0.0004 < 0.03
2013 2013-04-03 0.03 0.0004 < 0.03
2013 2013-01-16 0.03 0.0004 < 0.03
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.07 0.35 < 0.07
2013 2013-07-10 0.07 0.35 < 0.07
2013 2013-04-24 0.07 0.35 < 0.07
2013 2013-01-16 0.07 0.35 < 0.07
vanadium 0.2 21 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.2 21 < 0.2
2013 2013-10-22 0.2 21 < 0.2
2013 2013-07-10 0.2 21 < 0.2
2013 2013-07-10 0.2 21 < 0.2
2013 2013-04-03 0.2 21 < 0.2
2013 2013-04-02 0.2 21 < 0.2
2013 2013-01-16 0.2 21 < 0.2
2013 2013-01-16 0.2 21 < 0.2
molybdenum 1 40 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 1 40 < 1
2013 2013-10-22 1 40 < 1
2013 2013-07-10 1 40 < 1
2013 2013-07-10 1 40 < 1
2013 2013-04-03 1 40 < 1
2013 2013-04-02 1 40 < 1
2013 2013-01-16 1 40 < 1
2013 2013-01-16 1 40 < 1
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.01 0 < 0.01
2013 2013-07-10 0.01 0 < 0.01
2013 2013-04-03 0.01 0 < 0.01
2013 2013-01-16 0.01 0 < 0.01
strontium 0.3 1500 80.9375 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.3 1500 97.2
2013 2013-10-22 0.3 1500 89.9
2013 2013-07-10 0.3 1500 109
2013 2013-07-10 0.3 1500 85.3
2013 2013-04-03 0.3 1500 60.5
2013 2013-04-02 0.3 1500 77.8
2013 2013-01-16 0.3 1500 73.5
2013 2013-01-16 0.3 1500 54.3
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.04 0.07 < 0.04
2013 2013-07-10 0.04 0.07 < 0.04
2013 2013-04-03 0.04 0.07 < 0.04
2013 2013-01-16 0.04 0.07 < 0.04
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.02 0 < 0.02
2013 2013-07-10 0.02 0 < 0.02
2013 2013-04-03 0.02 0 < 0.02
2013 2013-01-16 0.02 0 < 0.02
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.02 0.07 < 0.02
2013 2013-07-10 0.02 0.07 < 0.02
2013 2013-04-03 0.02 0.07 < 0.02
2013 2013-01-16 0.02 0.07 < 0.02
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.03 0 < 0.03
2013 2013-07-10 0.03 0 < 0.03
2013 2013-04-03 0.03 0 < 0.03
2013 2013-01-16 0.03 0 < 0.03
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-22 0.09 0 < 0.09
2013 2013-07-10 0.09 0 < 0.09
2013 2013-04-03 0.09 0 < 0.09
2013 2013-01-16 0.09 0 < 0.09

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
NY127078 lead 2015-01-01 2017-12-31 0.0028mg/L
NY101962 lead 2012-01-01 2014-12-31 0mg/L
NY85662 lead 2012-01-01 2012-12-31 0.0052mg/L
NY86574 lead 2009-01-01 2011-12-31 0.0028mg/L
NY49435 lead 2006-01-01 2008-12-31 0.003mg/L

Violations


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

Compliance Dates Rule Violation Type Contaminant Name Status
2007-10-01 - 2007-10-31 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
2003-01-01 - 2003-03-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Maximum Contaminant Level Violation, Average Total Haloacetic Acids (HAA5) Returned to Compliance
2002-10-01 - 2002-12-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Maximum Contaminant Level Violation, Average Total Haloacetic Acids (HAA5) Returned to Compliance
2012-10-01 - N/A Lead and Copper Rule Follow-up Or Routine LCR Tap M/R Lead and Copper Rule Returned to Compliance
2009-10-01 - 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.