Shoremont WTP			Brockport WTP			Hemlock WTP (Purchased Water)			Town of Ontario WTP (Purchased Water)
Parameter				Lake Ontario			Lake Ontario			Hemlock Lake			Lake Ontario
	EPA/NYS MCL	EPA/NYS MCLG	UNITS	Average	Range	Samples in 2001	Average	Range	Samples in 2001	Average	Range	Samples in 2001	Average	Range	Samples in 2001
Inorganics, Metals, Physical Parameters
Aluminum	NS	NS	ug/L	116	33 - 310	4	123	44 - 300	4	45	ND - 60	4	NR
Antimony	6	6	ug/L	ND		4	ND		4	ND		4	ND		1
Arsenic	10	NA	ug/L	ND	ND - 1.6	4	ND	ND - 1	4	ND	ND -1.6	4	ND		1
Barium	2	2	mg/L	0.023	0.019 - 0.029	4	0.021	0.020 - 0.023	4	0.019	0.017 - 0.023	4	0.023		1
Beryllium	4	4	ug/L	ND		4	ND		4	ND		4	ND		1
Bromide	NS	NS	mg/L	ND		5	ND		5	ND		5	NR
Cadmium	5	5	ug/L	ND		4	ND		4	ND		4	ND		1
Calcium	NS	NS	mg/L	36	34 - 38	4	35	34 - 37	4	28	26 - 29	4	NR
Chromium	100	100	ug/L	ND		4	ND		4	ND		4	ND
Copper  (Distribution System)	NS	NS	mg/L	ND		4	ND		4	ND	ND-0.01	4	NR
Copper (Customer Tap Samples)	AL*=1.3	1.3	mg/L	0.05	ND-0.14	32^(2000)	0.038	ND - 0.101	30	0.15	ND-0.78	18^(2000)	0.06	0.01 - 0.08	11^(1999)
Cyanide	200	200	ug/l	ND		4	ND		4	ND		4	ND		1
Fluoride	2.2	NA	mg/L	1.01	0.25 - 1.18	2121	1	0.11 - 1.25	1898	0.89	0.65 - 1.22	1076	1	0.85 - 1.15	730
Iron	300	NA	ug/L	ND		4	ND		4	ND		4	NR
Lead (Distribution System)	NS	NS	ug/L	ND		4	ND		4	ND		4	ND		1
Lead (Customer Tap Samples)	AL* = 15	0	ug/L	2	ND - 26	32^(2000)	ND	ND - 9	30	5	ND - 33	18^(2000)	ND		11^(1999)
Magnesium	NS	NS	mg/L	8.9	8.7 - 9.2	4	8.9	8.6 - 9.1	4	6.2	5.9 - 6.5	4	NR
Manganese	300	NA	ug/L	ND		4	ND		4	ND	ND - 3	4	NR
Mercury	2	2	ug/L	ND		4	ND		4	ND		4	ND		1
Nickel	100	NA	ug/L	ND		4	ND		4	ND		4	ND		1
Nitrate	10	NA	mg/L	0.38	ND - 0.5	4	0.34	ND - 0.4	4	0.09	ND - 0.2	4	2.13		1
Nitrite	1	1	mg/L	ND		4	ND		4	ND		4	ND		1
Ammonia Nitrogen	NS	NS	mg/L	0.1	ND - 0.1	4	0.2	ND - 0.2	4	0.1	ND - 0.1	4	NR
Potassium	NS	NS	mg/L	1.5	1.5 - 1.6	3	1.4	1.4 - 1.5	3	1.3	1.3	3	NR
Selenium	50	50	ug/L	ND		4	ND		4	ND		4	ND		1
Silver	100	NA	ug/L	ND		4	ND		4	ND		4	NR
Sodium	NS	NS	mg/L	12	12	3	11	11 - 12	3	16	15 - 17	3	NR
Sulfate	250	NA	mg/L	27	25 - 31	4	25	22 - 27	4	17	16 - 18	4	NR
Thallium	2	0.5	ug/L	ND		4	ND		4	ND		4	ND		1
Vanadium	NS	NS	ug/L	ND		4	ND		4	ND		4	NR
Zinc	5	NA	mg/L	ND		4	ND		4	ND		4	NR
Alkalinity	NS	NA	mg/L	84	83 - 85	4	83	81 - 85	4	67	66 - 69	4	NR
Chlorides	250	NA	mg/L	22	21 - 25	4	23	22 - 25	4	26	25 - 28	4	NR
Color	15	NA	Color Units	3	ND - 3	4	ND	ND - 3	4	ND	ND - 3	4	NR
Conductivity	NS	NS	umhos/cm	280	270 - 300	4	280	270 - 300	4	250	220 - 260	4	NR
pH	NS	NS	pH units	7.5	6.7 - 7.9	357	7.4	7.1 - 7.7	365	7.67	7.04 - 8.58	359	7.6	7.5 - 7.8	730
Total Dissolved Solids	NS	NS	mg/L	170	160 - 180	4	170	160 - 180	4	140	140	4	NR
Total Hardness	NS	NS	mg/L	125	121 - 133	4	124	120 - 130	4	94	89 - 97	4	NR
Total Organic Carbon	NS	NS	mg/L	1.8	1.6 - 2.1	4	1.9	1.8 - 2	4	2.4	2.1 - 2.5	4	NR
Turbidity - Entry Point	TT **	NA	NTUs	0.07	0.02 - 0.14	2101	0.03	0.01 - 0.19	1904	0.09	0.05 - 0.16	8659	0.04	0.02 - 0.08	4380
Turbidity - Distribution System	TT ***	NA	NTUs	0.13	0.04 - 0.14	1749	0.19	0.06 - 1	84	0.14	0.1 - 4.9	1366	0.16	0.05 - 0.35	365
Chlorine Residual - Entry Point	NS	NS	mg/L	1.23	0.84 - 1.7	8638	1.28	0.95 - 2.06	365	0.9	0.6 - 1.4	8662	1.1	0.9 - 1.2	4380
Chlorine Residual - Retail Dist.System	TT ****	NA	mg/L	0.81	0 - 1.4	1832	0.6	0.1 - 1	84	0.68	0 - 2.6	1451	0.8	0.5 - 1.1	365
Coliform - Retail Dist.System	TT *****	0	%Positive	ND		1834	ND		84	ND		1451	ND		120
Cryptosporidium & Giardia	NS	NS	#/100L	ND		6	ND		5	ND		4	ND		2
Asbestos (Distribution System)	7	7	MFL	ND		1^(1998)	NR			ND		1^(1996)	NR
Radionuclides
Gross Alpha	15	0	pC/L	ND		4^(1999)	ND		4^(1999)	ND		4^(2001)	NT
Gross Beta	50	0	pC/L	ND		4^(1999)	ND		4^(1999)	ND		4^(2001)	NT
Tritium	NS	NS	pC/L	ND		4^(1999)	ND		4^(1999)	NT			NT
Volatile Organics
Benzene	5	0	ug/L	Not Detected Not Detected Not Detected Not Detected Not Detected Not Detected Not Detected 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	Not Detected Not Detected