Storm Water Quality

Property Maintenance

Property maintenance activities are essential for the upkeep of residences, commercial buildings and landscaping; Property managers and contractors should use Best Management Practices (BMPs) to prevent the residue from these activities from reaching our storm drains and flowing untreated to our streams and the ocean.

The City and County of Honolulu developed a Property Maintenance Toolkit for Storm Water Compliance as a guide for property managers to implement practices to protect our water quality.

You can download the entire toolkit below — or scroll down to select just the pages you need.

Download/Print Full Toolkit.

To request hard copies and/or request a presentation, email

Pressure Washing Training Videos

Pressure washing Best Management Practices depend on the surface being cleaned. 

Watch the videos below to learn how to appropriately dispose of pressure washing water for each surface type.

Full Training

(All Segments)

Individual Printable Toolkit Pages

Download individual page(s) using the links below. Additional resources on each topic are also provided.

Landscape Maintenance download

Learn about handling green waste; fertilizer and pesticide use, storage, and disposal; tips for watering.

Learn about organic gardening practices.

Dumpster & Trash Maintenance download

Learn about maintaining trash enclosures; controlling litter; handling fluids and hazardous waste.

Bulky Item Pick Up

Pools, Spas & Water Features download

Learn about how to properly dispose of water from pools and water features; cleaning tips.

Dechlorinated Swimming Pool Water Discharges: See application materials on the Forms webpage.

Pressure Washing download all

Learn about preparing an area to be pressure washed; how to properly dispose of wash water based on surface type.
Pedestrian Areas download
Trash Enclosures & Vehicle Use Areas download
Building Exteriors download

Pressure Washing Videos are available at the top of this page.

Temporary Industrial Wastewater Discharge Permit 

Wash Water Disposal Supplies List

Painting (Interior & Exterior Surfaces) download

Learn about surface preparation and paint removal; preparing for painting and spills; clean-up and disposal; handling excess oil-based paints, stains, and solvents.

Household Hazardous Waste Disposal

Inlet Protection Device Removal download

Covers types of inlet protection devices; how to remove an inlet protection device; how to dispose of a filter sock after use.

Selecting a Contractor download

Tips to help you hire a contractor.

Private Storm Drain Connections download

Covers types of private storm drain connections; options for unlicensed connections; how to apply for a license.

Drain Connection License Application.

Site Map download

Use this form to illustrate how water flows onto and off your property.

Self-Inspection Checklist download

Use this checklist to visually inspect areas that are common sources of storm water pollution.

Information for Tenants

Trash Disposal Information for Multi-Family Residences Flyer and Sign.

Home Car Care for Storm Water Protection Brochure.

You Are the Solution webpage, Make a pledge to protect storm water from household pollution.

Business Inspections

In accordance with the City’s National Pollutant Discharge Elimination System (NPDES) permit, the City regularly inspects commercial and industrial facilities. In addition, if a complaint is filed or there is a community concern, the City must inspect the site and take corrective action. Any business found discharging pollution or wastewater into the storm drain system may be issued a citation and may be subject to fines of up to $25,000.

Your compilance is important to avoid potential fines

Use the BMPs and other tips provided by the City and County of Honolulu to avoid causing unauthorized discharges to the City’s storm water system and incurring a penalty fine.*

* Violation of Environmental Quality Control – Revised Ordinances of Honolulu Section 43-11.23:

It is unlawful for any person to discharge or cause to be discharged any pollutant into any drainage facility which causes a pollution problem in State water or causes a violation of any provision of the City NPDES permit or the water quality standards of the State of Hawai‘i per ROH Section 43-11.23 Environmental Quality Control.

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