The secondary effluent is combined into a single channel containing a Trojan UV3000

   Plus disinfection system. The UV system consists of two banks of horizontal lamps,

   each having 8 lamps. The TrojanUV3000Plus™ uses energy-efficient amalgam lamps.

   These high output lamps are automatically dimmed when flow demand drops or when

   the water quality changes. The system uses ActiClean™ during cleaning cycles, which    eliminates sleeve fouling.

   Permit limits and actual average results for the Moundsville facility after 23 years of

   operation are shown below.

Flow

Parameter

Permit

Actual

2.34 mgd

1.61 mgd

CBOD

25 mg/l

5 mg/l

TSS

30 mg/l

4 mg/l

Ammonia

2.6 mg/l

Fecal Coliform

200

28

15 mg/l

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