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HRS §46-11.7

Retention and detention pond safety rules (Sharkey's Law)

Starting in 2027, each county must pass local laws regulating retention and detention ponds. Those laws must require permits for new ponds and safety measures like fencing, signs, life buoys, and maintenance plans. Ponds on golf courses, hotels, resorts, or other secured recreational areas are exempt if owners prove they have enough security.

countieslandlords

The statute, as written — Retention ponds and detention ponds; safety requirements

(a) This section shall be known and may be cited as "Sharkey's Law". (b) Beginning January 1, 2027, each county shall adopt ordinances for the regulation of all retention ponds and detention ponds located within the county's jurisdiction. The ordinances adopted pursuant to this subsection shall include but not be limited to: (1) Establishing a permitting process for the construction of new retention ponds or detention ponds; and (2) Establishing safety requirements, which shall include but not be limited to: (A) Fencing that is at least four feet high that fully encloses the retention pond or detention pond and allows access through one or more secured, locked gates; (B) Safety signage indicating "No Swimming" and warning of sudden water level changes; (C) Installation of life buoys at entry points for emergency rescue; (D) Proper maintenance of ground cover surrounding the retention pond or detention pond, including mowing, weed control, and debris removal; and (E) Submission of maintenance plans by property owners or managers to ensure ongoing safety and compliance. (c) This section shall not apply to retention ponds and detention ponds built on golf courses, hotels, resort properties, or other secured recreational areas; provided that the entities who own, control, or manage such properties shall provide the counties with proof of sufficient security measures for its retention ponds and detention ponds. (d) For the purposes of this section: "Detention pond" means an area that is designed to: (1) Hold stormwater until the effects of percolation, evapotranspiration, or controlled release return the area to its normally dry state; and (2) Dissipate inflowing stormwater within seventy-two hours to accommodate a new volume of water. "Retention pond" means a permanent or semi-permanent aquatic system that acts as a trap where pollutants picked up by the initial surge of stormwater settle out before leaving the system.
Read the official text at capitol.hawaii.gov ↗as published Jan 6, 2026our copy taken Aug 20, 2026

LawTrove is not legal advice. The summary above is a computer-generated restatement — the authoritative text is the official version linked above.