## 43521 Federal Register / Vol. 77, No. 143 / Wednesday, July 25, 2012 / Rules and Regulations
Authority: 15 U.S.C. 2604, 2607, and 2625(c). **§§ 721.10308, 721.10309, 721.10310, 721.10311, and 721.10312 [Removed]** 

■ 

### 4. Remove §§ 721.10308, 721.10309, 721.10310, 721.10311, and 721.10312. [FR Doc. 2012–17897 Filed 7–24–12; 8:45 am]
**BILLING CODE 6560–50–P** 

### ENVIRONMENTAL PROTECTION **AGENCY 40 CFR Part 81**  **[EPA–HQ–OAR–2007–0956; FRL–9668–4]**
**RIN 2060–AO96** 

### Final Rule To Implement the 1997 **8-Hour Ozone National Ambient Air Quality Standard: Classification of**  **Areas That Were Initially Classified Under Subpart 1; Revision of the Anti**  **Backsliding Provisions To Address 1-Hour Contingency Measure**  **Requirements; Deletion of Obsolete 1-Hour Ozone Standard Provision**  Correction

In rule document 2012–11232 appearing on pages 28424–28446 in the issue of Monday, May 14, 2012, make the following correction: **§ 81.305 [Corrected]**

■ 

### On page 28443, the table entitled ‘‘CALIFORNIA—OZONE [8-Hour Standard]’’ should read as set forth below:



### C ALIFORNIA

### —O ZONE 

### [8-H OUR 

### S TANDARD 

### ]

Designated area Designation aCategory/classification
Date 1 Type Date 1 Type Amador and Calaveras Cos., CA: (Central Mountain Cos.) Amador County ........................................................ .................... Nonattainment ................... 6/13/1 2 Subpart 2/Moderate. Calaveras County ..................................................... .................... Nonattainment ................... 6/13/1 2 Subpart 2/Moderate. Chico, CA: Butte County ............................................................ .................... Nonattainment .................... 6/ 13/12 Subpart 2/Marginal. Kern County (Eastern Kern), CA. Kern County (part) ................................................... .................... Nonattainment .................... 6/13/ 12 Subpart 2/Moderate.


## 43522 Federal Register / Vol. 77, No. 143 / Wednesday, July 25, 2012 / Rules and Regulations

C ALIFORNIA

### —O ZONE 

### [8-H OUR 

### S TANDARD 

### ]—Continued

Designated area Designation aCategory/classification
Date 1 Type Date 1 Type That portion of Kern County (with the exception of

that portion in Hydrologic Unit Number 18090205—the Indian Wells Valley) east and south of a line described as follows: Beginning atthe Kern-Los Angeles County boundary and running north and east along the northwest boundary of the Rancho La Liebre Land Grant to the point of intersection with the range line common to Range 16 West and Range 17 West, San Bernardino Base and Meridian; north along the range line to the point of intersection with the Rancho El Tejon Land Grant boundary; then southeast, northeast, and northwest along the boundary of the Rancho El Tejon Grant to the northwest corner of Section 3, Township 11 North, Range 17 West; then west 1.2 miles; thennorth to the Rancho El Tejon Land Grant boundary; then northwest along the Rancho El Tejonline to the southeast corner of Section 34, Township 32 South, Range 30 East, Mount Diablo Base and Meridian; then north to the northwest corner of Section 35, Township 31 South, Range 30 East; then northeast along the boundary ofthe Rancho El Tejon Land Grant to the southwest corner of Section 18, Township 31 South,Range 31 East; then east to the southeast corner of Section 13, Township 31 South, Range 31 East; then north along the range line common toRange 31 East and Range 32 East, Mount Diablo Base and Meridian, to the northwest corner of Section 6, Township 29 South, Range 32East; then east to the southwest corner of Section 31, Township 28 South, Range 32 East; then north along the range line common toRange 31 East and Range 32 East to the northwest corner of Section 6, Township 28 South,Range 32 East, then west to the southeast corner of Section 36, Township 27 South, Range 31 East, then north along the range line common toRange 31 East and Range 32 East to the KernTulare County boundary.

* * * * * * * Mariposa and Tuolumne Cos., CA: (Southern Mountain Counties) Mariposa County ...................................................... .................... Nonattainment .................... 6/13/ 12 Subpart 2/Moderate. Tuolumne County ..................................................... .................... Nonattainment ................... 6/13/12 Subpart 2/Moderate. San Diego, CA San Diego County (part) That portion of San Diego County that excludes

the areas listed below: La Posta Areas #1 and #2, b Cuyapaipe Area, b Manzanita Area, b Campo Areas #1 and #2 b

. .................... Nonattainment .................... 6/13/12 Subpart 2/Moderate.

* * * * * * * Sutter County (part), CA: Sutter County (part) (Sutter Buttes) That portion of the Sutter Buttes

mountain range at or above 2,000 feet in elevation. .................... Nonattainment .................... 6/13/12 Subpart 2/Marginal.

* * * * * * * Nevada County (Western part), CA Nevada County (part)


## 43523 Federal Register / Vol. 77, No. 143 / Wednesday, July 25, 2012 / Rules and Regulations

C ALIFORNIA

### —O ZONE 

### [8-H OUR 

### S TANDARD 

### ]—Continued

Designated area Designation aCategory/classification
Date 1 Type Date 1 Type That portion of Nevada County, which lies west of

a line, described as follows: beginning at the Nevada-Placer County boundary and running north along the western boundaries of Sections 24, 13, 12, 1, Township 17 North, Range 14 East, Mount Diablo Base and Meridian, and Sections 36, 25, 24, 13, 12, Township 18 North, Range 14 East to the Nevada-Sierra County boundary. .................... Nonattainment .................... 6/13/12 Subpart 2/Moderate.

* * * * * * *

a Includes Indian Country located in each county or area, except as otherwise noted. b The boundaries for these designated areas are based on coordinates of latitude and longitude derived from EPA Region 9’s GIS da tabaseand are illustrated in a map entitled ‘‘Eastern San Diego County Attainment Areas for the 8-Hour Ozone NAAQS,’’ dated March 9, 2004, including an attached set of coordinates. The map and attached set of coordinates are available at EPA’s Region 9 Air Division office. The designatedareas roughly approximate the boundaries of the reservations for these tribes, but their inclusion in this table is intended for CAA planning purposes only and is not intended to be a federal determination of the exact boundaries of the reservations. Also, the specific listing of these tribes in this table does not confer, deny, or withdraw Federal recognition of any of the tribes so listed nor any of the tribes not l isted.

1 This date is June 15, 2004, unless otherwise noted.

[FR Doc. C1–2012–11232 Filed 7–24–12; 8:45 am]
**BILLING CODE 1505–01–D** 

### 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:



### E XHIBIT 

### 1—A PPLICABILITY OF 

### UCMR 3 TO 

### W ATER 

### U TILITIES BY 

### S YSTEM 

### T YPE AND 

### S IZE **UCMR 3 Assessment Monitoring** System type ............................... System size 1 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 size 1 Serving >10,000 Serving ≤ 10,000CWS & 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 size 1 Serving >1,000 Serving ≤ 1,000 CWS, TNCWS & NTNCWS ...... No requirements ............................................................................ Requires 80 0 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.