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EF/ ICR Logo Summary Report for Washington Suburban Sanitary Comm.



[ Quarterly DBP ] [ Monthly DBP ] [ Monthly Microbials ]

Water Systems and Water Treatment Plants: A water system may consist of more than one treatment plant. Therefore, you may see data from more than one treatment plant in your water system report.


Sampled Quarterly - DISINFECTION BYPRODUCT (Treated Water)

Potomac Water Filtration Plant - 406

Quarter Total Trihalomethanes(ppb) Haloacetic Acids 5(ppb)
JUL 1997 - SEP 1997
 83.1
 NO DATA
OCT 1997 - DEC 1997
 64.2
 NO DATA
JAN 1998 - MAR 1998
 NO DATA
NO DATA
APR 1998 - JUN 1998
 29.9
 NO DATA
JUL 1998 - SEP 1998
 70.4
 NO DATA
OCT 1998 - DEC 1998
 62.2
 NO DATA

Patuxent Water Filtration Plant - 407

Quarter Total Trihalomethanes(ppb) Haloacetic Acids 5(ppb)
JUL 1997 - SEP 1997
 72.3
 NO DATA
OCT 1997 - DEC 1997
 53.7
 NO DATA
JAN 1998 - MAR 1998
 NO DATA
NO DATA
APR 1998 - JUN 1998
 30.6
 NO DATA
JUL 1998 - SEP 1998
 78.2
 NO DATA
OCT 1998 - DEC 1998
 77.7
 NO DATA

Detailed water system reports are available for: Total Trihalomethanes and Haloacetic Acids 5.


Sampled Monthly - DISINFECTION BYPRODUCT (Treated Water)

Detailed water system reports are available for: Total Trihalomethanes and Haloacetic Acids 5.


Sampled Monthly - DISINFECTION BYPRODUCT (Treated Water)

NO DATA - Click here to find out why.

Detailed water system reports are available for: Bromate and Chlorite


Sampled Monthly - MICROBIALS (Source Water)

Potomac Water Filtration Plant - 406

Month Cryptosporidium
(#oocysts/100L)		 Giardia
(#cysts/100L)		 Virus
(MPN/100L)		 Total Coliform
(Total Coliforms/100mL)		 Fecal Coliform
(Fecal Coliforms/100mL)		 E. coli
(E. coli/100mL)
JUL 1997
 0
 0
 0
 7820
 NO DATA
AUG 1997
 0
 0
 0
 4800
 NO DATA
SEP 1997
 NO DATA
 NO DATA
 0
 5600
 NO DATA
OCT 1997
 1.7
 3.3
 0
 2010
 NO DATA
NOV 1997
 22
 0
 105.5
 16000
 NO DATA
DEC 1997
 NO DATA
 NO DATA
 0
 340
 NO DATA
JAN 1998
 0
 22.1
 4.5
 13000
 NO DATA
FEB 1998
 0
 120
 1
 2500
 NO DATA
MAR 1998
 51
 127.5
 148.3
 12000
 NO DATA
APR 1998
 0
 42.9
 0
 5000
 NO DATA
MAY 1998
 0
 227.9
 0
 5000
 NO DATA
JUN 1998
 0
 0
 0
 4100
 NO DATA
JUL 1998
 0
 2.5
 0
 2710
 NO DATA
AUG 1998
 0
 8.6
 0
 27000
 NO DATA
SEP 1998
 0
 0
 0
 1450
 NO DATA
OCT 1998
 0
 0
 0
 33
 NO DATA
NOV 1998
 0
 18.2
 1
 330
 NO DATA
DEC 1998
 0
 6.6
 0
 340
 NO DATA

Patuxent Water Filtration Plant - 407

Month Cryptosporidium
(#oocysts/100L)		 Giardia
(#cysts/100L)		 Virus
(MPN/100L)		 Total Coliform
(Total Coliforms/100mL)		 Fecal Coliform
(Fecal Coliforms/100mL)		 E. coli
(E. coli/100mL)
JUL 1997
 0
 0
 0
 310
 NO DATA
AUG 1997
 0
 0
 0
 190
 NO DATA
SEP 1997
 NO DATA
 NO DATA
 0
 660
 NO DATA
OCT 1997
 0
 0
 0
 890
 NO DATA
NOV 1997
 0
 15.1
 0
 2500
 NO DATA
DEC 1997
 NO DATA
 NO DATA
 0
 165
 NO DATA
JAN 1998
 0
 0
 0
 2
 NO DATA
FEB 1998
 0
 20
 0
 218
 NO DATA
MAR 1998
 18.1
 0
 0
 109
 NO DATA
APR 1998
 33.2
 0
 1
 109
 NO DATA
MAY 1998
 11
 0
 0
 450
 NO DATA
JUN 1998
 0
 0
 0
 950
 NO DATA
JUL 1998
 0
 0
 0
 310
 NO DATA
AUG 1998
 0
 0
 0
 145
 NO DATA
SEP 1998
 0
 0
 0
 1300
 NO DATA
OCT 1998
 0
 0
 0
 132
 NO DATA
NOV 1998
 50
 0
 0
 220
 NO DATA
DEC 1998
 0
 0
 0
 32
 NO DATA

Detailed water system reports are available for: Cryptosporidium, Giardia, Virus, Total Coliform, Fecal Coliform, and E. coli

You can click on column titles to obtain more information about the subject. You can click on the "NO DATA" to find out why data is missing. "0" value does not mean that the value was missing. Missing values are indicated by a "NO DATA" label. For microbial results, "0" indicates that a sample was analyzed, but that no microbes were found. For DBP results, "0" may indicate that a sample was analyzed, but that the result was less than the lowest value that the analytical method can reliably report.

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