77 FR 143 pgs. 43523-43524 - Revisions to the Unregulated Contaminant Monitoring Regulation (UCMR 3) for Public Water Systems
Type: RULEVolume: 77Number: 143Pages: 43523 - 43524
Docket number: [Docket No. EPA-HQ-OW-2009-0090; FRL-9660-4]
FR document: [FR Doc. C2-2012-9978 Filed 7-24-12; 8:45 am]
Agency: Environmental Protection Agency
Official PDF Version: PDF Version
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Parts 141 and 142
[Docket No. EPA-HQ-OW-2009-0090; FRL-9660-4]
RIN 2040-AF10
Revisions to the Unregulated Contaminant Monitoring Regulation (UCMR 3) for Public Water Systems
Correction
In rule document 2012-9978 appearing on pages 26072-26101 in the issue of Wednesday, May 2, 2012, make the following correction:
On pages 26072-26073, the table entitled
"EXHIBIT 1-APPLICABILITY OF UCMR 3 TO WATER UTILITIES BY SYSTEM TYPE AND SIZE" should read as set forth below:
| UCMR 3 Assessment Monitoring | ||
| System type | System size1 | |
| Serving >10,000 | Serving =10,000 | |
| CWS & NTNCWS | Requires all systems to monitor for List 1 chemicals | Requires 800 randomly selected systems to monitor for List 1 chemicals. EPA will pay for the analysis of samples. |
| TNCWS | No requirements | No requirements. |
| UCMR 3 Screening Survey | ||
| System Type | System size1 | |
| Serving >10,000 | Serving =10,000 | |
| CWS & NTNCWS | Requires all systems serving more than 100,000, and 320 randomly selected systems serving 10,001 to 100,000 to monitor for List 2 chemicals | Requires 480 randomly selected systems to monitor for List 2 chemicals. EPA will pay for the analysis of samples. |
| TNCWS | No requirements | No requirements. |
| UCMR 3 Pre-Screen Testing | ||
| System type | System size1 | |
| Serving >1,000 | Serving =1,000 | |
| CWS, TNCWS & NTNCWS | No requirements | Requires 800 randomly selected systems to permit EPA to sample and analyze List 3 microbes. The selected systems will be served by non-disinfecting ground water wells in vulnerable areas. EPA will pay for the analysis of samples. |
| 1 Based on the retail population, as indicated by SDWIS/Fed on December 31, 2010. | ||
[FR Doc. C2-2012-9978 Filed 7-24-12; 8:45 am]
BILLING CODE 1505-01-D