35 Ill. Adm. Code 372.510
System Flow and Stored Volume Measurement
Section 372
Section 372.510 System Flow
and Stored Volume Measurement
a) System Flows
Plant influent and effluent irrigation flow measurement shall
be provided. Flow measurement shall not be less than elapsed time meters used
in conjunction with pumping rate tests or calibrated weirs. All flow
measurement equipment shall be sized to function effectively in the full range
of flows expected and shall be protected against freezing.
b) Stored Volume Measurement
A staff gauge shall be provided in the storage lagoon located
near the draw-off structure and must be easily read from the lagoon dike.
c) Monitoring Systems
Monitoring equipment for wastewater application sites shall
include equipment for measuring air temperature, soil temperature,
precipitation, wind speed and direction, and depth to groundwater.