What Bromate is, and why it's regulated
What the EPA limit means
10 µg/L
Maximum Contaminant Level — the enforceable ceiling a supplier must stay under.
0.0 µg/L
Health goal (MCLG) — the level with no known health effect. It is a goal, not a legal limit, and is often zero for carcinogens.
SYR4
Where these measurements come from. Hover the tag for the EPA programme and years.
Where Bromate was found
The water suppliers reporting the highest levels, worst first.
| Supplier | City | State | Level vs EPA limit |
|---|---|---|---|
| Central Wy Regional Water System Jpb | Casper | WY | 504 µg/L 5040% of the EPA limit, in the worst sample — 10 µg/L |
| Hilltop Wc | Rocky Ford | CO | 190 µg/L 1900% of the EPA limit, in the worst sample — 10 µg/L |
| West Grand Valley Wa | Rocky Ford | CO | 180 µg/L 1800% of the EPA limit, in the worst sample — 10 µg/L |
| Riverside Wc | Rocky Ford | CO | 170 µg/L 1700% of the EPA limit, in the worst sample — 10 µg/L |
| Vaughn Wc Inc | Bakersfield | CA | 110 µg/L 1100% of the EPA limit, in the worst sample — 10 µg/L |
| Fargo City of | Fargo | ND | 88 µg/L 880% of the EPA limit, in the worst sample — 10 µg/L |
| City of Cushing | Cushing | TX | 79 µg/L 790% of the EPA limit, in the worst sample — 10 µg/L |
| Bassi Ranch Mutual Water Co. | Grover Beach | CA | 77 µg/L 770% of the EPA limit, in the worst sample — 10 µg/L |
| Lawton | Lawton | OK | 76 µg/L 760% of the EPA limit, in the worst sample — 10 µg/L |
| Crwa Lake Dunlap Wtp | — | TX | 73.2 µg/L 732% of the EPA limit, in the worst sample — 10 µg/L |
| Chandler City of | Chandler | AZ | 68 µg/L 680% of the EPA limit, in the worst sample — 10 µg/L |
| Billerica Water Works | Billerica | MA | 50 µg/L 500% of the EPA limit, in the worst sample — 10 µg/L |
| Rayburn Country Mud | Jasper | TX | 46 µg/L 460% of the EPA limit, in the worst sample — 10 µg/L |
| Manhattan Beach-City, Water Dept. | Manhattan Beach | CA | 42 µg/L 420% of the EPA limit, in the worst sample — 10 µg/L |
| Oklahoma City | Oklahoma City | OK | 40.5 µg/L 405% of the EPA limit, in the worst sample — 10 µg/L |
| Konocti County Water District | Clearlake | CA | 37 µg/L 370% of the EPA limit, in the worst sample — 10 µg/L |
| Antelope Valley East Kern Water Agency | Palmdale | CA | 37 µg/L 370% of the EPA limit, in the worst sample — 10 µg/L |
| Antelope Valley E Kern Wtr Agy-Rosamond | — | CA | 36 µg/L 360% of the EPA limit, in the worst sample — 10 µg/L |
| City of Stockton | Stockton | CA | 36 µg/L 360% of the EPA limit, in the worst sample — 10 µg/L |
| Emporia, City of | Emporia | KS | 33 µg/L 330% of the EPA limit, in the worst sample — 10 µg/L |
| Mesa City of | Mesa | AZ | 30 µg/L 300% of the EPA limit, in the worst sample — 10 µg/L |
| Gilbert, Town of | Gilbert | AZ | 29 µg/L 290% of the EPA limit, in the worst sample — 10 µg/L |
| Iola, City of | Iola | KS | 26 µg/L 260% of the EPA limit, in the worst sample — 10 µg/L |
| Southwest Milam Wsc | Rockdale | TX | 23.5 µg/L 235% of the EPA limit, in the worst sample — 10 µg/L |
| Hastings Muni Auth | Hastings | PA | 23 µg/L 230% of the EPA limit, in the worst sample — 10 µg/L |
Frequently asked questions about Bromate
What is Bromate in drinking water?
Bromate forms when ozone used to disinfect water reacts with natural bromide; it is a probable carcinogen.
What is the EPA limit for Bromate?
The EPA's Maximum Contaminant Level for Bromate is 10 µg/L, and its health goal (MCLG) is 0.0 µg/L. A result above the limit means the supplier must act; the goal is the level at which no health effects are expected.
How common is Bromate in US tap water?
Of the 338 water suppliers with results on file, 167 detected Bromate — 49.4% of those tested.