1999 Water Quality Monitoring Program Summary

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Shoremont WTP Brockport WTP Purchased Water

Parameter
Lake Ontario Lake Ontario Hemlock Lake

EPA/NYS MCL
EPA/NYS MCGL
UNITS
Average
Range Samples in 1999 Average Range
Samples in 1999

Average
Range Samples in 1999

Inorganics, Metals, Physical Parameters

Aluminum
NS

NS
ug/L
63
60 -110 4
148
58-210
4

76
32-120
4

Antimony
6

6
ug/L
Not Detected
4
Not Detected

4

Not Detected

4

Arsenic
50

NS
ug/L
Not Detected
4
.06
ND-1.1
4

Not Detected

4

Barium
2

2
mg/L
0.021
.020 -.022 4
0.018
.003-.024
4

Not Detected

4

Beryllium
4

4
ug/L
Not Detected
4
Not Detected

4

Not Detected

4

Cadmium
5

5
ug/L
Not Detected
4
Not Detected

4

Not Detected

4

Calcium
NS

NS
mg/L
34
30-39 18
33
28-38
19

24
23-26
20

Chromium
100

100
ug/L
Not Detected
4
4
ND-6.4
4

3.1
ND-4.9
4

Copper
(Distribution System)
NS

NS
mg/L
Not Detected
4
0.0008
ND-.003
4

0.049
ND-.100
4

Copper (Customer Tap Samples)
AL*=1.3

0
mg/L
0.086
ND-1.3 128^(1997)
0.08
ND-.23
4

0.138
ND-.67
76*(1997)

Cyanide
200

0
ug/l
Not Detected
4
Not Detected

4

Not Detected

4

Fluoride
2.2

NA
mg/L
1.00
1.31 2049
0.99
.2-1.25
2183

0.86
.68-1.14
1075

Iron
300

NS
ug/L
Not Detected
4
Not Detected

4

Not Detected

4

Lead
(Distribution System)
NS

NS
ug/L
Not Detected
N-1.8 4
Not Detected

4

Not Detected

4

Lead (Customer Tap Samples)
AL*15

NS
ug/L
2
ND-13 128^(1997)
0.6
ND-4
8^(1997)

3
ND-18
76^(1997)

Magnesium
NS

NS
mg/L
8.6
8.4-8.7 4
9
8.5 -9.5
4

6.1
5.8-6.3
4

Manganese
300

NS
ug/L
Not Detected
4
Not Detected

4

2
ND-7.9
4

Mercury
2

2
ug/L
Not Detected
4
Not Detected

4

Not Detected

4

Nickel
100

NS
ug/L
Not Detected
4
Not Detected

4

Not Detected

4

Nitrate
10

10
mg/L
0.48
.29 -.48 4
0.36
.25 - .51
4

0.07
ND -.14
4

Nitrite
1

1
mg/L
Not Detected
4
Not Detected

4

Not Detected

4

Selenium
50

50
mg/L
Not Detected
4
Not Detected

4

Not Detected

4

Silver
100

NS
ug/L
Not Detected
4
Not Detected

4

Not Detected

4

Sodium
NS

NS
mg/L
11.6
1
11.1

1

15.2

1

Sulfate
250

NS
mg/L
29
28-30 4
26
25 - 27
4

18
16-20
4

Thallium
2

0.5
ug/L
Not Detected
4
Not Detected

3

Not Detected

4

Zinc
5

NS
mg/L
Not Detected
4
Not Detected

4

Not Detected

4

Alkalinity
NS

NS
mg/L
89
79 - 100 18
89
79 -98
17

64
61-69
20

Chlorides
250

NS
mg/L
23
23-25 4
25
22 -27
4

25
23-28
4

Color
15

NS
Color Units
Not Detected
ND -3 4
Not Detected

4

Not Detected
ND -3
4

Conductivity
NS

NS
umhos/cm 320 270 -370 18
320
260 -410
15

250
225 -273
800

pH
NS

NS
pH units 7.5 6.9-7.9 365
7.4
6.8 - 7.8
365

7.7
7.1- 8.3
365

Total Dissolved Solids
NS

NS
mg/L 170 150 -190 4
171
150 -190
4

145
130-160
4

Total Hardness
NS

NS
mg/L 124 119 -124 7
122
121 -123
2

88
85 -91
4

Total Organic Carbon
NS

NS
mg-L 1.7 1.4 -2.4 4
1.8
1.5 -2.4
4

1.7
1.7-1.8
3

Turbidity - Entry Point
TT**

NA
NTUs 0.11 .06-.35 2090
0.02
.001-.10
2181

0.10
.06-.30
8022

Turbidity - Distribution System
TT***

NA
NTUs 0.17 .07-7.2 1510
0.18
.07 -.7
96

0.2
.07-3
7976

Chlorine Residual - Entry Point
NS

NS
mg/L 1.12 .38 -2.0 8580
1.27
1.14-1.5
365

0.83
.32-1.7
8760

Chlorine Residual - Retail Dist.System
TT****

NA
mg/L 0.8 0-1.8 1538
0.61
.5-1.07
96

0.65
0-2.2
1433

Coliform - Retail Dist.System
TT*****

0
%Positive 0.8% ND-0.7% 1538
0%

96

0.9%
ND-0.8%
1352

Cryptosporidium & Giardia

NS

NS
#/100L Not Detected 6
Not Detected

12

Not Detected

4

Asbestos (Distribution System)
7

7
MFL Not Detected 1^(1998)
Not Required

1

Not Detected

1^(1998)

Radionuclides

Gross Alpha
15

0
pC/L Not Detected 4
Not Detected

4

Not Detected

1^(1997)

Gross Beta
50

0
pC/L Not Detected 4
Not Detected

4

Not Detected

1^(1997)

Tritium
NS

NS
pC/L Not Detected 4
Not Detected

4

NT

Volatile Organics

Benzene
5

0
ug/L
Not Detected

Not Detected

Not Detected

Not Detected

Not Detected

4
Not Detected

Not Detected

Not Detected

Not Detected

Not Detected

4
Not Detected

Not Detected

Not Detected

Not Detected

Not Detected

4

Bromobenzene
5

0
ug/L 4
4

4

Bromochloromethane
5

0
ug/L 4
4

4

Bromomethane
5

0
ug/L 4
4

4

2-Butanone (MEK)
50

NS
ug/L 3
3

3

n-Butylbenzene
5

NS
ug/L 4
4

4

sec-Butylbenzene
5

NS
ug/L 4
4

4

tert-Butylbenzene
5

NS
ug/L 4
4

4

Carbon Tetrachloride
5

0
ug/L 4
4

4

Chlorobenzene
100

100
ug/L 4
4

4

Chloroethane
5

NS
ug/L 4
4

4

Chloromethane
5

NS
ug/L 4
4

4

2-Chlorotoluene
5

NS
ug/L 4
4

4

4-Chlorotoluene
5

NS
ug/L 4
4

4

dibromomethane
5

NS
ug/L 4
4

4

1,2-Dichlorobenzene
600

600
ug/L 4
4

4

1,3-Dichlorobenzene
5

NS
ug/L 4
4

4

1,4-Dichlorobenzene
75

75
ug/L 4
4

4

Dichlorodifluoromethane
5

NS
ug/L 4
4

4

1,1 Dichloroethane
5

NS
ug/L 4
4

4

1,2-Dichloroethane
5

0
ug/L 4
4

4

1,1-Dichloroethene
7

7
ug/L 4
4

4

cis-1,2-Dichloroethene
70

70
ug/L 4
4

4

trans-1,2-Dichloroethene
100

100
ug/L 4
4

4

1,2-Dichloropropane
5

0
ug/L 4
4
</

				Shoremont WTP			Brockport WTP			Purchased Water
Parameter				Lake Ontario			Lake Ontario			Hemlock Lake
	EPA/NYS MCL	EPA/NYS MCGL	UNITS	Average	Range	Samples in 1999	Average	Range	Samples in 1999	Average	Range	Samples in 1999
Inorganics, Metals, Physical Parameters
Aluminum	NS	NS	ug/L	63	60 -110	4	148	58-210	4	76	32-120	4
Antimony	6	6	ug/L	Not Detected		4	Not Detected		4	Not Detected		4
Arsenic	50	NS	ug/L	Not Detected		4	.06	ND-1.1	4	Not Detected		4
Barium	2	2	mg/L	0.021	.020 -.022	4	0.018	.003-.024	4	Not Detected		4
Beryllium	4	4	ug/L	Not Detected		4	Not Detected		4	Not Detected		4
Cadmium	5	5	ug/L	Not Detected		4	Not Detected		4	Not Detected		4
Calcium	NS	NS	mg/L	34	30-39	18	33	28-38	19	24	23-26	20
Chromium	100	100	ug/L	Not Detected		4	4	ND-6.4	4	3.1	ND-4.9	4
Copper (Distribution System)	NS	NS	mg/L	Not Detected		4	0.0008	ND-.003	4	0.049	ND-.100	4
Copper (Customer Tap Samples)	AL*=1.3	0	mg/L	0.086	ND-1.3	128^(1997)	0.08	ND-.23	4	0.138	ND-.67	76*(1997)
Cyanide	200	0	ug/l	Not Detected		4	Not Detected		4	Not Detected		4
Fluoride	2.2	NA	mg/L	1.00	1.31	2049	0.99	.2-1.25	2183	0.86	.68-1.14	1075
Iron	300	NS	ug/L	Not Detected		4	Not Detected		4	Not Detected		4
Lead (Distribution System)	NS	NS	ug/L	Not Detected	N-1.8	4	Not Detected		4	Not Detected		4
Lead (Customer Tap Samples)	AL*15	NS	ug/L	2	ND-13	128^(1997)	0.6	ND-4	8^(1997)	3	ND-18	76^(1997)
Magnesium	NS	NS	mg/L	8.6	8.4-8.7	4	9	8.5 -9.5	4	6.1	5.8-6.3	4
Manganese	300	NS	ug/L	Not Detected		4	Not Detected		4	2	ND-7.9	4
Mercury	2	2	ug/L	Not Detected		4	Not Detected		4	Not Detected		4
Nickel	100	NS	ug/L	Not Detected		4	Not Detected		4	Not Detected		4
Nitrate	10	10	mg/L	0.48	.29 -.48	4	0.36	.25 - .51	4	0.07	ND -.14	4
Nitrite	1	1	mg/L	Not Detected		4	Not Detected		4	Not Detected		4
Selenium	50	50	mg/L	Not Detected		4	Not Detected		4	Not Detected		4
Silver	100	NS	ug/L	Not Detected		4	Not Detected		4	Not Detected		4
Sodium	NS	NS	mg/L	11.6		1	11.1		1	15.2		1
Sulfate	250	NS	mg/L	29	28-30	4	26	25 - 27	4	18	16-20	4
Thallium	2	0.5	ug/L	Not Detected		4	Not Detected		3	Not Detected		4
Zinc	5	NS	mg/L	Not Detected		4	Not Detected		4	Not Detected		4
Alkalinity	NS	NS	mg/L	89	79 - 100	18	89	79 -98	17	64	61-69	20
Chlorides	250	NS	mg/L	23	23-25	4	25	22 -27	4	25	23-28	4
Color	15	NS	Color Units	Not Detected	ND -3	4	Not Detected		4	Not Detected	ND -3	4
Conductivity	NS	NS	umhos/cm	320	270 -370	18	320	260 -410	15	250	225 -273	800
pH	NS	NS	pH units	7.5	6.9-7.9	365	7.4	6.8 - 7.8	365	7.7	7.1- 8.3	365
Total Dissolved Solids	NS	NS	mg/L	170	150 -190	4	171	150 -190	4	145	130-160	4
Total Hardness	NS	NS	mg/L	124	119 -124	7	122	121 -123	2	88	85 -91	4
Total Organic Carbon	NS	NS	mg-L	1.7	1.4 -2.4	4	1.8	1.5 -2.4	4	1.7	1.7-1.8	3
Turbidity - Entry Point	TT**	NA	NTUs	0.11	.06-.35	2090	0.02	.001-.10	2181	0.10	.06-.30	8022
Turbidity - Distribution System	TT***	NA	NTUs	0.17	.07-7.2	1510	0.18	.07 -.7	96	0.2	.07-3	7976
Chlorine Residual - Entry Point	NS	NS	mg/L	1.12	.38 -2.0	8580	1.27	1.14-1.5	365	0.83	.32-1.7	8760
Chlorine Residual - Retail Dist.System	TT****	NA	mg/L	0.8	0-1.8	1538	0.61	.5-1.07	96	0.65	0-2.2	1433
Coliform - Retail Dist.System	TT*****	0	%Positive	0.8%	ND-0.7%	1538	0%		96	0.9%	ND-0.8%	1352
Cryptosporidium & Giardia	NS	NS	#/100L	Not Detected		6	Not Detected		12	Not Detected		4
Asbestos (Distribution System)	7	7	MFL	Not Detected		1^(1998)	Not Required		1	Not Detected		1^(1998)

Radionuclides
Gross Alpha	15	0	pC/L	Not Detected		4	Not Detected		4	Not Detected		1^(1997)
Gross Beta	50	0	pC/L	Not Detected		4	Not Detected		4	Not Detected		1^(1997)
Tritium	NS	NS	pC/L	Not Detected		4	Not Detected		4	NT

Volatile Organics
Benzene	5	0	ug/L	Not Detected Not Detected Not Detected Not Detected Not Detected		4	Not Detected Not Detected Not Detected Not Detected Not Detected		4	Not Detected Not Detected Not Detected Not Detected Not Detected		4
Bromobenzene	5	0	ug/L			4			4			4
Bromochloromethane	5	0	ug/L			4			4			4
Bromomethane	5	0	ug/L			4			4			4
2-Butanone (MEK)	50	NS	ug/L			3			3			3
n-Butylbenzene	5	NS	ug/L			4			4			4
sec-Butylbenzene	5	NS	ug/L			4			4			4
tert-Butylbenzene	5	NS	ug/L			4			4			4
Carbon Tetrachloride	5	0	ug/L			4			4			4
Chlorobenzene	100	100	ug/L			4			4			4
Chloroethane	5	NS	ug/L			4			4			4
Chloromethane	5	NS	ug/L			4			4			4
2-Chlorotoluene	5	NS	ug/L			4			4			4
4-Chlorotoluene	5	NS	ug/L			4			4			4
dibromomethane	5	NS	ug/L			4			4			4
1,2-Dichlorobenzene	600	600	ug/L			4			4			4
1,3-Dichlorobenzene	5	NS	ug/L			4			4			4
1,4-Dichlorobenzene	75	75	ug/L			4			4			4
Dichlorodifluoromethane	5	NS	ug/L			4			4			4
1,1 Dichloroethane	5	NS	ug/L			4			4			4
1,2-Dichloroethane	5	0	ug/L			4			4			4
1,1-Dichloroethene	7	7	ug/L			4			4			4
cis-1,2-Dichloroethene	70	70	ug/L			4			4			4
trans-1,2-Dichloroethene	100	100	ug/L			4			4			4
1,2-Dichloropropane	5	0	ug/L			4			4 </