Wet Weather Percolation/Groundwater Testing
|
Area
|
Total Required |
Total to Date |
Groundwater |
Perc |
| Petaluma |
12.5" |
|
Closed |
Closed |
| Sonoma |
15" |
5.98" |
Closed |
Closed |
| Santa Rosa |
15" |
6.65" |
Closed |
Closed |
| Sebastopol |
17.5" |
6.06" |
Closed |
Closed |
| Guerneville |
25" |
10.55" |
Closed |
Closed |
| Healdsburg |
20" |
10.97" |
Closed |
Closed |
| Cloverdale |
20" |
7.96" |
Closed |
Closed |
This information is updated when open dates change
- date is shown at bottom of this page. |
The Memorandum of Understanding with the State of California
Regional Water Quality Control Board allows for wet weather
percolation and groundwater testing between January
1 and March 1,
and after having received 50% of the average rainfall.
Depth to groundwater determinations can be conducted within ten (10)
calendar days following a rainfall of 0.8 inches in a 48 hour period.
Sonoma County is divided into 7 geographic areas for this purpose.
The amount of rainfall will be posted for each area.
|