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Virginia Administrative Code
Title 12. Health
Agency 5. Department of Health
Chapter 610. Sewage Handling and Disposal Regulations
11/8/2025

12VAC5-610-1170:7. APPENDIX L. Suggested Scale and Contour Interval for Subdivision Plats.

APPENDIX L.


Suggested Scale and Contour Interval for Subdivision Plats

Lot Size (Acre)

Scale

Slope(%)

Contour Interval

0.5

1" = 20'

0–2

2

6–10

5

11–25

5

26–50

10

0.5 – 3

1" = 50'

0–5

2

6–10

5

11–25

10

26–50

20

3

1" = 100'

0–5

2

6–10

5

11–25

10

26–50

20

 

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