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Levels of Treated Water Total Trihalomethanes for NEW YORK
JULY - SEPTEMBER 1998
| REMINDER: Data Purpose: The ICR data were collected as part of a national research project to support development of national drinking water standards.
They should NOT be used to determine local water systems compliance with drinking water standards, nor should they be used to make personal judgements about individual health risks.
Units: Sample measurements are taken in micrograms per Liter (ug/L) and are regulated in milligrams per Liter (mg/L). A microgram per Liter is equivalent to one contaminant part per billion (ppb). A ppb can be thought of as one grain of salt in a swimming pool. Data for Total Trihalomethanes, haloacetic acids 5, and bromate are presented in ppb. 1 mg/L = 1000 ug/L, or 0.080 mg/L = 80 ug/L = 80 ppb, which happens to be the TTHM standard in the Stage 1 DBP Rule. Calculation in Regulations is Different: Comparisons with compliance calculations based on the existing Total Trihalomethanes standard in CFR Part 141.30 may not be warranted since the standard i s based on an annual average of public water system quarterly averages and not on treatment plant results as shown here. Also the results here are based on different types of samples. Results of Zero: A result of zero may indicate that a sample was analyzed, but that the result was less than the lowest value that the analytical method can reliably report. |
CITY OF ALBANY N.Y. DEPT. OF WATER
City of Buffalo NY Division of Water
Water Type - SURFACE WATER
(Treated Water)
| Plant Name | Plant ID | Water Type | Quarter | Total Trihalomethanes Concentration (ppb) |
|---|---|---|---|---|
| Buffalo Water Filtration Plant | 488 | Surface Water | JUL 1998 - SEP 1998 | 38.5 |
City of New York DEP
Water Type - GROUND WATER
(Treated Water)
| Plant Name | Plant ID | Water Type | Quarter | Total Trihalomethanes Concentration (ppb) |
|---|---|---|---|---|
| NYC Groundwater | 519 | Ground Water | JUL 1998 - SEP 1998 | 6.4 |
Water Type - SURFACE WATER
(Treated Water)
| Plant Name | Plant ID | Water Type | Quarter | Total Trihalomethanes Concentration (ppb) |
|---|---|---|---|---|
| Catskill System | 506 | Surface Water | JUL 1998 - SEP 1998 | 33.5 |
| Croton System | 507 | Surface Water | JUL 1998 - SEP 1998 | 82.7 |
| Delaware System | 721 | Surface Water | JUL 1998 - SEP 1998 | 41.5 |
City of Rochester Water Bureau
Water Type - SURFACE WATER
(Treated Water)
| Plant Name | Plant ID | Water Type | Quarter | Total Trihalomethanes Concentration (ppb) |
|---|---|---|---|---|
| Hemlock Water Filtration Plant | 514 | Surface Water | JUL 1998 - SEP 1998 | 44.1 |
City of Syracuse Department of Water
City of Yonkers Water Bureau
Erie County Water Authority
Water Type - SURFACE WATER
(Treated Water)
| Plant Name | Plant ID | Water Type | Quarter | Total Trihalomethanes Concentration (ppb) |
|---|---|---|---|---|
| Sturgeon Point | 489 | Surface Water | JUL 1998 - SEP 1998 | 54.6 |
| Van de Water | 490 | Surface Water | JUL 1998 - SEP 1998 | 35.7 |
Long Island Water Corporation
METROPOLITAN WATER BOARD
Monroe County Water Authority
Water Type - SURFACE WATER
(Treated Water)
| Plant Name | Plant ID | Water Type | Quarter | Total Trihalomethanes Concentration (ppb) |
|---|---|---|---|---|
| Shoremont Water Treatment Plant | 491 | Surface Water | JUL 1998 - SEP 1998 | 36.3 |
NEW YORK WATER SERVICE CORP.
ONONDAGA COUNTY WATER AUTHORITY
Water Type - SURFACE WATER
(Treated Water)
| Plant Name | Plant ID | Water Type | Quarter | Total Trihalomethanes Concentration (ppb) |
|---|---|---|---|---|
| OCWA TREATMENT PLANT | 513 | Surface Water | JUL 1998 - SEP 1998 | 49.9 |
Suffolk County Water Authority
Water Type - GROUND WATER
(Treated Water)
| Plant Name | Plant ID | Water Type | Quarter | Total Trihalomethanes Concentration (ppb) |
|---|---|---|---|---|
| Blue Spuce Lane | 517 | Ground Water | JUL 1998 - SEP 1998 | 0 |
| College Road | 516 | Ground Water | JUL 1998 - SEP 1998 | 1.3 |
| Green Belt Parkway | 515 | Ground Water | JUL 1998 - SEP 1998 | .9 |
| Woodchuck Hollow | 518 | Ground Water | JUL 1998 - SEP 1998 | 0 |
United Water New Rochelle
United Water New York
Water Type - SURFACE WATER
(Treated Water)
| Plant Name | Plant ID | Water Type | Quarter | Total Trihalomethanes Concentration (ppb) |
|---|---|---|---|---|
| Lake DeForest Water Treatment Plant | 508 | Surface Water | JUL 1998 - SEP 1998 | 95.4 |
| Ramapo Valley Well Field | 509 | Surface Water | JUL 1998 - SEP 1998 | 7 |
Upper Mohawk Valley Regional Water Board
Water Type - SURFACE WATER
(Treated Water)
| Plant Name | Plant ID | Water Type | Quarter | Total Trihalomethanes Concentration (ppb) |
|---|---|---|---|---|
| Hinckley Reservoir Water Treatment Plant | 492 | Surface Water | JUL 1998 - SEP 1998 | 120.8 |
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