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Nitrogen Dioxide (1971) Maintenance Area (Redesignated from Nonattainment) Partial County Descriptions

Data is current as of February 29, 2024
Detailed Description of Certain Area Boundaries for Partial Counties


CALIFORNIA


Los Angeles-South Coast Air Basin, CA


Los Angeles County

That portion of Los Angeles County which lies south and west of a line described as follows:

1. Beginning at the Los Angeles - San Bernardino County boundary and running west along the township line common to Township 3 North and Township 2 North, San Bernardino Base and Meridian;

2. then north along the range line common to Range 8 West and Range 9 West;

3. then west along the township line common to Township 4 North and Township 3 North;

4. then north along the range line common to Range 12 West and Range 13 West to the southeast corner of Section 12, Township 5 North and Range 13 West;

5. then west along the south boundaries of Sections 12, 11, 10, 9, 8, and 7, Township 5 North and Range 13 West to the boundary of the Angeles National Forest which is collinear with the range line common to Range 13 West and Range 14 West;

6. then north and west along the Angeles National Forest boundary to the point of intersection with the township line common to Township 7 North and Township 6 North (point is at the northwest corner of Section 4 in Township 6 North and Range 14 West);

7. then west along the township line common to Township 7 North and Township 6 North;

8. then north along the range line common to Range 15 West and Range 16 West to the southeast corner of Section 13, Township 7 North and Range 16 West;

9. then along the south boundaries of Sections 13, 14, 15, 16, 17, and 18, Township 7 North and Range 16 West;

10. then north along the range line common to Range 16 West and Range 17 West to the north boundary of the Angeles National Forest (collinear with the township line common to Township 8 North and Township 7 North);

11. then west along the Angeles National Forest boundary to the point of intersection with the south boundary of the Rancho La Liebre Land Grant;

12. then west and north along this land grant boundary to the Los Angeles-Kern County boundary.


Riverside County

That portion of Riverside County which lies to the west of a line described as follows:

1. Beginning at the Riverside - San Diego County boundary and running north along the range line common to Range 4 East and Range 3 East, San Bernardino Base and Meridian;

2. then east along the township line common to Township 8 South and Township 7 South;

3. then north along the range line common to Range 5 East and Range 4 East;

4. then west along the township line common to Township 6 South and Township 7 South to the southwest corner of Section 34, Township 6 South, Range 4 East;

5. then north along the west boundaries of Sections 34, 27, 22, 15, 10, and 3, Township 6 South, Range 4 East;

6. then west along the township line common to Township 5 South and Township 6 South;

7. then north along the range line common to Range 4 East and Range 3 East;

8. then west along the south boundaries of Sections 13, 14, 15, 16, 17, and 18, Township 5 South, Range 3 East;

9. then north along the range line common to Range 2 East and Range 3 East to the Riverside-San Bernardino county line.


San Bernardino County

That portion of San Bernardino County which lies south and west of a line described as follows:

1. Beginning at the San Bernardino - Riverside County boundary and running north along the range line common to Range 3 East and Range 2 East, San Bernardino Base and Meridian;

2. then west along the township line common to Township 3 North and Township 2 North to the San Bernardino - Los Angeles County boundary.



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