PDFWAC 173-173-060
If I must report data regarding my water use, how shall I report it?
(1) The following requirements to measure and report water use, when the department so requires, shall apply to responsible parties who divert or withdraw water.
Recording and Reporting Requirements | |||
Average diversion rate in gallons per minute | <10 gpm | 10-49 gpm | ˃50 gpm |
Recording frequency | Monthly | Biweekly | Weekly |
Volume or rate to report | Maximum rate of diversion | Maximum rate of diversion | Maximum rate of diversion |
Annual total volume | Annual total volume | Annual total volume | |
Date data must be reported to department | By Jan. 31 of the following calendar year | By Jan. 31 of the following calendar year | By Jan. 31 of the following calendar year |
Monthly means calendar month | |||
Weekly means Monday 12:01 a.m. to Sunday 12:00 p.m. | |||
Biweekly means once every two weeks | |||
Daily means 12:01 a.m. to 12:00 p.m. | |||
1 gallon per minute is equivalent to .002 cubic feet per second |
(2) Where a device capable of indicating flow rate is not installed, a responsible party may determine the maximum flow rate by measuring the volume of water that is diverted over a brief time period when the system is operating under maximum demand.