New development and land-disturbing work in Benton County must control stormwater on site. Sites disturbing one acre or more need Ecology's Construction Stormwater General Permit, and projects follow the Stormwater Management Manual for Eastern Washington to protect the Columbia and Yakima rivers.
Benton County sits in the arid Columbia Basin, where infrequent but intense storms push sediment-laden runoff toward the Columbia and Yakima rivers. The state Department of Ecology issues the Construction Stormwater General Permit for sites clearing one acre or more, and the Stormwater Management Manual for Eastern Washington sets treatment and infiltration standards suited to this dry, low-rainfall terrain. Low-impact techniques such as infiltration swales and permeable surfaces work well in the region's coarse soils. Post-construction facilities become the property owner's responsibility to maintain, and discharging sediment, paint, or chemicals into ditches or the storm system is prohibited.
Clearing an acre or more without the state permit, or discharging sediment and pollutants into ditches or the storm system, draws Ecology enforcement, stop-work orders, and daily penalties.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Benton County, WA
Benton County may require hosts to carry liability insurance for short-term rental properties. Minimum coverage amounts vary by jurisdiction.
Benton County, WA
Benton County limits the number of guests allowed in short-term rental properties. Occupancy caps are typically based on bedroom count or square footage to p...
Benton County, WA
Unincorporated Benton County does not regulate holiday lights, inflatables, or yard displays on private property, and Washington has no statewide holiday-dis...
Benton County, WA
Garage-sale signs are fine on your own property in Benton County, but directional signs staked in a road right-of-way, median, or on utility poles are prohib...
Benton County, WA
Political signs are allowed on private property throughout Benton County with no permit, protected as free speech. Signs staked in a county road or state hig...
Benton County, WA
Rental registration in Benton County depends on your city. Prosser requires a rental business license — $10 to register, $5 to renew yearly — with a safety i...
See how Benton County's stormwater management rules stack up against other locations.
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