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Appendix H

Nassau County Department of Health
Water Quality Monitoring Program
 
APPENDIX H  
WATER QUALITY MONITORING PROGRAM TO DETECT PESTICIDE CONTAMINATION
IN GROUNDWATERS OF NASSAU AND SUFFOLK COUNTIES
NASSAU COUNTY PUBLIC SUPPLY WELLS - 2001 DATA SUMMARY
WATER SYSTEM Albertson W.D. Albertson W.D. Beaver Dam SC Bethpage W.D. Franklin Sq.WD Freeport V. Freeport V. Garden City V.
WELL NO. N-3733 N-8558 N-5672 N-9591 N-7177 N-68 N-69 N-7058
SAMPLE DATE 7/17/2001 10/15/2001 9/10/2001 9/26/2001 11/30/2001 7/23/2001 7/23/2001 9/25/2001
SEMI-VOLATILE                
PESTICIDES (ug/l) ND ND ND ND ND ND ND ND
CHLORINATED                
PESTICIDES (ug/l) ND   ND ND ND ND ND ND
EDB/DBCP (ug/l) ND ND ND ND ND ND ND ND
CARBAMATE                
PESTICIDES (ug/l) ND ND ND ND ND ND ND ND
TCPA (ug/l) ND ND ND ND ND ND ND ND
HERBICIDE                
METABOLITES (ug/l) ND ND ND ND ND ND ND ND
  1,1,1-TCA (0.6)       1,1,1-TCA (5)      
  TCE (1)       TCE (77)      
VOLATILE PCE (0.9)       Freon (7)     TCE (34)
ORGANICS (ug/l) 1,1-DCE (0.5) Chloroform (2) ND ND 1,1-DCE (4) ND ND PCE (110)
METALS (ug/l)              
ALUMINUM 35 <5 5.8 12.2 <5 57.6 51 <5
ANTIMONY <1 <1 <1 <1 <1 <1 <1 <1
ARSENIC <2 <2 <2 <2 <2 <2 <2 <2
BARIUM 2.7 2.4 7.9 <1 1.3 2 1.4 2.2
BERYLLIUM <1 <1 <1 <1 <1 <1 <1 <1
CADMIUM <1 <1 <1 <1 <1 <1 <1 <1
CHROMIUM 1.8 2.7 2.9 <1 1.2 1.7 1.5 2
COBALT <1 <1 <1 <1 1.5 <1 <1 <1
COPPER 7.2 11.1 15.1 29.4 8.8 40 73.9 11.9
IRON (mg/l) <0.1 <0.1 0.33 <0.1 <0.1 0.3 0.4 <0.1
LEAD 1.1 <1 2.3 2.2 <1 <1 <1 <1
MANGANESE 2.7 <1 16.7 2.2 2.3 3.5 3.8 <1
MERCURY <0.4 <0.4 <0.4 <0.4 <0.4 <0.4 <0.4 <0.4
MOLYBDENUM <1 <1 <1 <1 <1 <1 <1 <1
NICKEL 3 2.6 1.8 <1 1.2 1.3 1.6 2.5
SELENIUM 3 <2 <2 <2 <2 <2 <2 <2
SILVER <5 <5 <5 <5 <5 <5 <5 <5
SODIUM (mg/l) 6.6 10.1 5.5 3 6.7 3.7 3.7 8.2
THALLIUM <1 <1 <1 <1 <1 <1 <1 <1
THORIUM <1 <1 <1 <1 <1 <1 <1 <1
TITANIUM <1 3.1 <1 <1 <1 <1 <1 <1
VANADIUM <1 <1 <1 <1 <1 <1 <1 <1
ZINC <50 <50 <50 <50 <50 <50 <50 <50
INORGANICS (mg/l)  
AMMONIA <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02
BROMIDE <0.2 <0.2 <0.2 <0.2 0.8 <0.2 <0.2 <0.2
CHLORIDE 10 15 7 4 11 6 5 10
CONDUCTIVITY 103 - - - 429 37 37 -
FLUORIDE <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2
NITRATE 2.5 3 2.5 1.2 0.8 <0.2 <0.2 5.2
NITRITE <0.02 0.03 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02
O - PHOSPHATE <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1
PH 6 - - - 6.3 4.8 5 -
SULFATE 9 14 17 <4 19 <4 <4 7
PERCHLORATE (ug/l) <2 <2 <2 3 <2 <2 <2 3
24
WATER SYSTEM Garden City V. Garden City V. Garden City V. Garden City Pk Garden City Pk Glen Cove C Glen Cove C Glen Cove C
WELL NO. N-8339 N-1697 N-5163 N-10612 N-10612 N-9210 N-9211 N-9334
SAMPLE DATE 9/25/2001 9/25/2001 9/25/2001 7/17/2001 12/17/2001 8/6/2001 8/6/2001 8/6/2001
SEMI-VOLATILE                
PESTICIDES (ug/l) ND ND ND ND ND ND ND ND
CHLORINATED                
PESTICIDES (ug/l) ND ND ND ND ND ND ND ND
EDB/DBCP (ug/l) ND ND ND ND ND ND DBCP (0.11) ND
CARBAMATE                
PESTICIDES (ug/l) ND ND ND ND ND ND ND ND
TCPA (ug/l) ND ND ND 7 5 ND 17 ND
HERBICIDE             Desethyl-  
METABOLITES (ug/l) ND ND ND ND ND ND atrazine-.05 ND
              1,1-DCA(2)  
      1,1,1-TCA (2)       111-TCA(1)  
  1,2-DCP(0.8)   TCE (51)       TCE (1)  
  TCE (78)   PCE (18)       PCE (1)  
VOLATILE PCE (130) TCE (1) cis12-DCE(.6)       cis-DCE(3)  
ORGANICS (ug/l) cis12-DCE(.8) PCE (0.7) 1,1-DCE (3) PCE (0.6) PCE (0.7) ND 1,1-DCE(.5) 1,1,1-TCA(.8)
METALS (ug/l)              
ALUMINUM 9.7 22.6 6.3 <5 5.3 <5 <5 20
ANTIMONY <1 <1 <1 <1 <1 <1 <1 <1
ARSENIC <2 <2 <2 <2 <2 <2 <2 <2
BARIUM 2.8 4.1 3.8 18.5 21.1 18.3 18.5 29.5
BERYLLIUM <1 <1 <1 <1 <1 <1 <1 <1
CADMIUM <1 <1 <1 <1 <1 <1 <1 <1
CHROMIUM 4.1 3.1 3.2 2.7 3.7 <1 <1 1
COBALT <1 3.2 <1 <1 <1 <1 <1 <1
COPPER 18.1 50.2 27 3.4 2.8 2.8 4.7 4.5
IRON (mg/l) <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1
LEAD 3.9 2.9 <1 <1 <1 <1 <1 1.1
MANGANESE 2.8 6.7 1.6 <1 <1 <1 <1 14.6
MERCURY <0.4 <0.4 <0.4 <0.4 <0.4 <0.4 <0.4 <0.4
MOLYBDENUM <1 <1 <1 <1 <1 <1 <1 <1
NICKEL 4.8 4.5 2.4 4.2 2.9 <1 <1 2.1
SELENIUM <2 <2 <2 2.7 <2 <2 <2 <2
SILVER <5 <5 <5 <5 <5 <5 <5 <5
SODIUM (mg/l) 13.6 9.4 14.5 13.6 13.1 12.9 16.3 13.6
THALLIUM <1 <1 <1 <1 <1 <1 <1 <1
THORIUM <1 <1 <1 <1 <1 <1 <1 <1
TITANIUM <1 3.1 <1 <1 <1 <1 <1 1.5
VANADIUM <1 <1 <1 <1 <1 <1 <1 <1
ZINC 56.2 65.8 <50 <50 <50 <50 <50 80
INORGANICS (mg/l)  
AMMONIA <0.02 0.26 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02
BROMIDE <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2
CHLORIDE 28 18 32 30 29 26 34 21
CONDUCTIVITY - - - 314 305 - - -
FLUORIDE <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2
NITRATE 4 2.1 5.4 4.8 <0.2 3.3 5.9 5.9
NITRITE <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02
O - PHOSPHATE <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1
PH - - - 6.4 6.5 - - -
SULFATE 28 8 12 39 38 18 26 31
PERCHLORATE (ug/l) <2 <2 <2 <2 <2 <2 <2 3
25
WATER SYSTEM Hempstead V. Hempstead V. Hicksville WD Hicksville WD Hicksville WD Hicksville WD Jericho WD Locust Valley
WELL NO. N-81 N-82 N-3953 N-3878 N-8778 N-8779 N-6093 N-119
SAMPLE DATE 12/17/2001 12/17/2001 10/15/2001 10/15/2001 10/31/2001 10/31/2001 10/15/2001 8/21/2001
                 
SEMI-VOLATILE                
PESTICIDES (ug/l) ND ND ND ND ND ND ND ND
CHLORINATED                
PESTICIDES (ug/l) ND ND ND ND ND ND ND ND
EDB/DBCP (ug/l) ND ND ND ND ND ND ND ND
CARBAMATE                
PESTICIDES (ug/l) ND ND ND ND ND ND ND ND
TCPA (ug/l) ND ND ND ND ND ND ND ND
HERBICIDE                
METABOLITES (ug/l) ND ND ND ND ND ND ND ND
            Chlorodifluoro-    
    TCE (4)     1,1-DCA (0.9) methane(4)    
VOLATILE Chlorodifluoro- PCE (0.6)     TCE (20) 1,1-DCA (2)    
ORGANICS (ug/l) methane(4) 1,1-DCE (0.6) ND ND Freon 113 (1) 1,1-DCE(.5) ND 1,1-DCA (0.6)
METALS (ug/l)              
ALUMINUM 33.8 <5 <5 <5 44.8 <5 <5 15
ANTIMONY <1 <1 <1 <1 <1 <1 <1 <1
ARSENIC <2 <2 <2 <2 <2 <2 <2 <2
BARIUM 4.5 1.1 1.6 10.1 6.4 10.7 5.7 54.5
BERYLLIUM <1 <1 <1 <1 <1 <1 <1 <1
CADMIUM <1 <1 <1 <1 <1 <1 <1 <1
CHROMIUM 1.3 1.1 <1 <1 <1 1.7 1.1 3
COBALT 7.7 <1 <1 <1 <1 1.9 1.4 <1
COPPER 13.7 59.4 6.5 9.8 12.6 33.1 17.1 47.3
IRON (mg/l) 0.95 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1
LEAD <1 <1 <1 1.8 2.2 3.9 <1 1
MANGANESE 9.6 <1 <1 <1 5.1 2 1.4 9.4
MERCURY <0.4 <0.4 <0.4 <0.4 <0.4 <0.4 <0.4 <0.4
MOLYBDENUM <1 <1 <1 <1 <1 <1 <1 <1
NICKEL 7.6 1.2 <1 1 2.2 3.5 3.5 1.5
SELENIUM <2 <2 <2 <2 <2 <2 <2 <2
SILVER <5 <5 <5 <5 <5 <5 <5 <5
SODIUM (mg/l) 9.5 4.8 4 6.4 7.3 14.8 4.3 8.5
THALLIUM <1 <1 <1 <1 <1 <1 <1 <1
THORIUM <1 <1 <1 <1 <1 <1 <1 <1
TITANIUM <1 <1 <1 <1 <1 <1 <1 <1
VANADIUM <1 <1 <1 <1 <1 <1 <1 <1
ZINC <50 <50 <50 <50 109 <50 <50 <50
INORGANICS (mg/l)  
AMMONIA <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02
BROMIDE <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2
CHLORIDE 23 7 5 9 9 24 <4 12
CONDUCTIVITY 117 59 - - - 149 - -
FLUORIDE <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2
NITRATE <.2 <.2 0.9 5.3 4.3 5.1 2.1 4
NITRITE <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02
O - PHOSPHATE <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 - <0.1
PH 5.2 5.7 - - 5.7 5.5 - -
SULFATE 12 <4 <4 <4 <4 6 <4 8
PERCHLORATE (ug/l) <2 <2 <2 5 2 <2 2 <2
26
WATER SYSTEM Locust Valley WD LI Water Corp. LI Water Corp. LI Water Corp. LI Water Corp. Man-Lakeville Man-Lakeville Man-Lakeville
WELL NO. N-118 N-1346 N-4393 N-7548 N-5145 N-3523 N-7747 N-12801
SAMPLE DATE 8/21/2001 8/21/2001 10/31/2001 10/31/2001 10/31/2001 8/14/2001 8/14/2001 11/14/2001
SEMI-VOLATILE                
PESTICIDES (ug/l) ND ND ND ND ND ND ND ND
CHLORINATED                
PESTICIDES (ug/l) ND ND ND ND ND ND ND ND
EDB/DBCP (ug/l) ND ND ND ND ND ND ND ND
CARBAMATE                
PESTICIDES (ug/l) ND ND ND ND ND ND ND ND
TCPA (ug/l) ND ND ND ND ND ND ND ND
HERBICIDE                
METABOLITES (ug/l) ND ND ND ND ND ND ND ND
            1,1-DCA (3)    
            1,1,1-TCA (2)    
            TCE (0.7)    
VOLATILE   TCE (1)       PCE (2)    
ORGANICS (ug/l) ND PCE (10) ND ND ND cis-1,2-DCE (2) ND ND