The Power of Information

National Drinking Water Database


WA of Western Nassau Utilities - Great Neck, NY


Serves 120,000 people

Phosphorus

Phosphorus is a component of fertilizer and manure, and a common pollutant in municipal wastewater discharges.
 
This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is
121 days
Test Days Exceeding Legal LimitsNumber of days in which the samples taken in that day exceed the Maximum Contaminant Level (Depending on the contaminant and its MCL, that may or may not trigger an MCL violation. Some MCLs are based on averages spanning several months to a year)
0 days
Test DaysNumber of days in which this chemical has reported results in the data we received from the State
126 days
Tests ConductedNumber of individual tests done for this contaminant
438 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
PhosphorusPhosphorus is a component of fertilizer and manure, and a common pollutant in municipal wastewater discharges.217.19 ppb
1540 ppb
Yes
0.1 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
NOTE: Each dot in the above graph represents one month.
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.

Health Based and Legal Limits for Phosphorus

Health Based Limits for Phosphorus

StandardDescriptionLevel
Lifetime health-based limit, non-cancer riskConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for a lifetime of exposure. The Lifetime health-based limit (or Health Advisory, HA) is based on exposure for a a 70-kg adult consuming 2 liters of water per day. Source: U.S. Environmental Protection Agency.0.1 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.0.5 ppb

Testing Results

Testing DateAverage
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2008-12-01250 ppb10250 ppb
2008-12-01150 ppb30130 to 180 ppb
2008-12-01174 ppb520 to 340 ppb
2008-12-01205 ppb60130 to 290 ppb
2008-11-01200 ppb210 to 400 ppb
2008-11-01170 ppb50120 to 220 ppb
2008-11-01155 ppb210 to 310 ppb
2008-11-01130 ppb10130 ppb
2008-11-01188 ppb510 to 300 ppb
2008-10-01170 ppb210 to 340 ppb
2008-10-01156 ppb50110 to 210 ppb
2008-10-01236 ppb520 to 410 ppb
2008-10-01171.67 ppb610 to 360 ppb
2008-10-010 ppb110 ppb
2008-10-01311.67 ppb60180 to 480 ppb
2008-09-01247.14 ppb70100 to 600 ppb
2008-09-01270 ppb20150 to 390 ppb
2008-09-01253.33 ppb310 to 390 ppb
2008-09-01205 ppb210 to 410 ppb
2008-09-01299 ppb1020 to 520 ppb
2008-09-0193.33 ppb310 to 160 ppb
2008-09-01120 ppb10120 ppb
2008-08-0193.33 ppb310 to 140 ppb
2008-08-01167.5 ppb420 to 490 ppb
2008-08-010 ppb110 ppb
2008-08-01135 ppb610 to 230 ppb
2008-08-01262.5 ppb40130 to 420 ppb
2008-08-01230 ppb310 to 370 ppb
2008-07-01248.33 ppb60130 to 460 ppb
2008-07-01180 ppb20160 to 200 ppb
2008-07-01176.67 ppb30140 to 230 ppb
2008-07-0190 ppb210 to 180 ppb
2008-07-01130 ppb210 to 260 ppb
2008-07-01235 ppb210 to 470 ppb
2008-07-01172.5 ppb40130 to 230 ppb
2008-07-0196.67 ppb310 to 160 ppb
2008-07-01273.33 ppb610 to 490 ppb
2008-06-010 ppb110 ppb
2008-06-010 ppb110 ppb
2008-06-01100 ppb210 to 200 ppb
2008-05-01220 ppb20140 to 300 ppb
2008-05-01134.55 ppb1130 to 230 ppb
2008-05-01235 ppb210 to 470 ppb
2008-05-01133.33 ppb310 to 200 ppb
2008-04-01242 ppb510 to 420 ppb
2008-04-01187.5 ppb40150 to 250 ppb
2008-04-01213.33 ppb30120 to 370 ppb
2008-04-01154.1 ppb510 to 500 ppb
2008-03-01130 ppb20120 to 140 ppb
2008-03-01205 ppb20110 to 300 ppb
2008-03-01185 ppb40140 to 240 ppb
2008-03-01198 ppb510 to 320 ppb
2008-03-01173.33 ppb30140 to 190 ppb
2008-02-01170 ppb210 to 340 ppb
2008-02-01160 ppb60110 to 240 ppb
2008-02-01177.14 ppb1420 to 310 ppb
2008-02-01110 ppb10110 ppb
2008-01-01155 ppb20140 to 170 ppb
2008-01-01310 ppb10310 ppb
2008-01-01110 ppb620 to 230 ppb
2008-01-01182.5 ppb410 to 300 ppb
2008-01-01220 ppb20170 to 270 ppb
2008-01-01125 ppb20120 to 130 ppb
2008-01-01140 ppb10140 ppb
2007-12-01183.33 ppb30150 to 220 ppb
2007-12-01166.67 ppb30140 to 180 ppb
2007-12-01180 ppb310 to 270 ppb
2007-12-01150 ppb10150 ppb
2007-12-01185 ppb40160 to 220 ppb
2007-12-01145 ppb20140 to 150 ppb
2007-12-01280 ppb10280 ppb
2007-11-01202.5 ppb40120 to 280 ppb
2007-11-01182.5 ppb40160 to 230 ppb
2007-11-01190 ppb410 to 310 ppb
2007-11-01184 ppb50130 to 240 ppb
2007-10-01225 ppb210 to 450 ppb
2007-10-01180 ppb50130 to 250 ppb
2007-10-01254.44 ppb90130 to 480 ppb
2007-10-01191.67 ppb620 to 420 ppb
2007-10-01155 ppb210 to 310 ppb
2007-09-01102 ppb510 to 220 ppb
2007-09-01213.33 ppb30110 to 390 ppb
2007-09-01216.67 ppb310 to 340 ppb
2007-09-01215 ppb210 to 430 ppb
2007-09-01123.33 ppb30100 to 150 ppb
2007-09-01100 ppb310 to 180 ppb
2007-09-01303.33 ppb610 to 480 ppb
2007-08-01238.33 ppb60150 to 380 ppb
2007-08-01106.67 ppb310 to 160 ppb
2007-08-01165 ppb210 to 330 ppb
2007-08-01127.14 ppb710 to 230 ppb
2007-08-01271.43 ppb710 to 510 ppb
2007-08-0160 ppb210 to 120 ppb
2007-08-01165.56 ppb910 to 280 ppb
2007-08-01206.67 ppb30130 to 360 ppb
2007-07-01150 ppb30120 to 190 ppb
2007-07-01190.77 ppb1330 to 370 ppb
2007-07-01135 ppb20120 to 150 ppb
2007-07-01217.14 ppb710 to 410 ppb
2007-07-01180 ppb40140 to 230 ppb
2007-07-01305 ppb20170 to 440 ppb
2007-06-01160 ppb20140 to 180 ppb
2007-06-01120 ppb310 to 220 ppb
2007-06-01160 ppb210 to 320 ppb
2007-06-01123.33 ppb320 to 370 ppb
2007-06-01160 ppb20140 to 180 ppb
2007-06-01163.33 ppb620 to 410 ppb
2007-06-01160 ppb20150 to 170 ppb
2007-06-01160 ppb10160 ppb
2007-05-01150 ppb10150 ppb
2007-05-011082 ppb50110 to 4380 ppb
2007-05-01107.5 ppb430 to 430 ppb
2007-05-01192.5 ppb420 to 430 ppb
2007-04-011540 ppb210 to 3080 ppb
2007-04-01955 ppb210 to 1910 ppb
2007-04-01215 ppb210 to 430 ppb
2006-09-01390 ppb10390 ppb
2006-09-01720 ppb10720 ppb
2006-08-01223.33 ppb310 to 440 ppb
2006-08-01440 ppb10440 ppb
2006-07-01460 ppb10460 ppb
2006-07-01520 ppb30280 to 640 ppb
2006-07-010 ppb110 ppb
2006-05-01400 ppb10400 ppb
2006-04-01510 ppb10510 ppb
2006-04-01390 ppb10390 ppb