Maintenance costs for stormwater and rainwater harvest and use/reuse practices Maintenance costs for stormwater and rainwater harvest and use/reuse practices

Maintenance costs for stormwater and rainwater harvest and use/reuse practices
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Example Maintenance Costs
Activity	Frequency	Annual Cost	Reference
Inspection, Reporting & Information Management	Semi-Annually	$260	2009 WERF
Roof Washing, Cleaning Inflow Filters	Semi-Annually	$480	2009 WERF
Intermittent System Maintenance (System flush, debris/sediment removal from tank)	Every 3 years	$130	2009 WERF
Pump Replacement	Every 3 years	$198	2009 WERF
Cartridge Filter	Annually	$20-60	MPCA Cost-Benefit Considerations
Reverse Osmosis Filter	Annually	$400-1,500	MPCA Cost-Benefit Considerations
UV Light Disinfection	Every 10,000 hours or 14 months	$350-1,000; $80 to replace UV bulb	MPCA Cost-Benefit Considerations
Ozone Disinfection	As needed	$700-2,600; $1,200+ for in-line monitor to test effectiveness	MPCA Cost-Benefit Considerations
Chlorine Disinfection	Monthly	$1/month manual dose or a $600-3,000 automatic self-dosing system	MPCA Cost-Benefit Considerations