Provide Aerobic Treatment Unit ( ATU ) Operations and Maintenance Services

2026-11-03

1 . AEROBIC SYSTEMS . Services for the three ( 3 ) each , Cyclic Biological Treatment ( CBT ) systems are as follows : a . MAINTENANCE SERVICES : The Contractor shall provide the following services on an as needed basis : 1 ) Clean air filter and change when necessary ( Air filter cost shall be inclusive in bid price ). 2 ) Check diffuser for proper operation . 3 ) Collect samples and perform analysis for Dissolved Oxygen ( DO ), pH , solids settle - ability , and chlorine residual in accordance to applicable State of Hawaii Department of Health regulations on a monthly basis . 4 ) Check effluent chlorinating system for proper operation and adjust application rates as necessary . 5 ) Maintain a log of plant operations and test results . Submit copy of log and test results to the Department of Parks and Recreation with your service invoice for payment . 6 ) Provide chlorine hypochlorite tablets for effluent disinfection . b . COLLECTION AND TESTING SERVICES : The Contractor shall provide the following services on an as needed basis : 1 ) Collect and transport Biochemical Oxygen Demand ( BOD ), suspended solids , and conform bacteria analysis . 2 ) Monthly testing ( included - one ( 1 ) each Biochemical Oxygen Demand ( BOD )/ TSS test combined - requires sampling port ). 3 ) Plant pumping liquid sludge hauling and disposal ( includes one ( 1 ) each pump per month ) for CBT System and / or lift stations . c . LABORATORY TESTING : The Contractor shall also provide the following on an as needed basis : 1 ) Lab test for Biochemical Oxygen Demand ( BOD ) and Total Suspended Solids ( TSS ). 2 ) Labor for lab test - BOD , TSS . 3 ) Add chlorine hypochlorite tablets to system .

Hawaii

2026-04-08