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Programming Features
Appendix C
Storm Water
A special Storm Water monitoring program designed specifically to meet the
NPDES storm water requirements is built in to the 980 Flow Meter. Rainfall is
monitored with an optional Rain Gauge. A connection is then made from the
980 Flow Meter Sampler Interface to an automatic liquid sampler.
A typical storm water program might be configured to activate when a storm
causes a level of at least 3 in. (7.6 cm) in the outfall channel and 0.10 in.
(2.5 mm) of rainfall within 30 minutes. Or, it might be desirable to activate the
program if either the rainfall occurs or the channel level exceeds the limit. Any
combination of rainfall and level conditions can be used to activate a storm
water program. Specific requirements can vary, however, from state to state.
Consult state regulatory groups for recommendations on storm water permit
requirements for specific applications.
To configure the Storm Water program in the flow meter, proceed as follows:
1. From the Main Menu, select
OPTIONS > ADVANCED OPTIONS > STORM
WATER.
2. Highlight STORM WATER on the Advanced Options Menu, then press the
SELECT soft key to continue.
3. Press the
CHANGE CHOICE soft key to enable Storm Water, then press
the
ACCEPT soft key.
4. Select a Start Condition:
• Rain
• Level
• Rain and Level (both conditions must be met for the program to
begin)
• Rain or Level (either condition must be met for the program to begin)
5. Enter the Start Condition limits:
• For Rain, enter the amount of rainfall and the time period within which
it must fall.
• For Level, enter the level limit.
• For Rain and Level and Rain or Level enter the amount of rainfall and
the time period within which it must fall, and the desired level limit.