§ 24.30.190. Wetlands—Golf courses, parks, playgrounds, athletic fields, and expansive landscaped areas—Maintenance.

Maintenance of approved golf courses, parks, playgrounds, athletic fields, and expansive landscaped areas within the buffers of Category I wetlands, Category II bogs, Category II wetlands containing sensitive plants identified by the DNR Natural Heritage Program, and areas within one hundred feet of associated Type S or F streams or within one hundred feet of other wetlands or streams shall conform to the following:

A.

Application of Fertilizers and Other Chemicals. Fertilizer, herbicide and pesticide management practices for golf courses, parks, playgrounds, athletic fields and other landscaped areas of one acre or larger in size that encroach into the wetland buffer shall comply with the following:

1.

Integrated pest management practices shall be used for pest control.

2.

The applicant shall submit a maintenance plan for review and approval by the approval authority identifying the timing and amount of fertilizer, herbicide, or other chemicals proposed to be used on the site. The application rate for such substances shall not exceed the application guidelines on the product packaging. The approval authority may require a reduced application rate if necessary to prevent harmful effects on wetlands or dependent fish or wildlife. Applicable WSU Extension Office BMPs or other BMPs accepted by the approval authority shall be used for maintaining grassed areas and other landscaping. See critical aquifer recharge areas, TCC 24.10.140, regarding the storage of hazardous materials.

3.

If necessary to maintain water quality in bogs, wetlands of high conservation value, or wetlands containing sensitive plants identified by the DNR Natural Heritage Program, the approval authority may require use of stormwater treatment methods that provide a high level of stormwater cleansing, consistent with the Drainage Design and Erosion Control Manual for Thurston County, as amended (Chapter 15.05 TCC). The approval authority may require an evaluation of the water quality at the outflow of stormwater facilities draining to wetlands identified in this section and require remedial action as necessary to sustain the wetland/sensitive plant species.

4.

The approval authority may require additional protective measures as necessary to maintain water quality.

B.

No Expansion of Disturbed Area. Maintenance shall not involve expansion of the lawn, landscaping, ditch, or other disturbed area into the wetland or buffer.

(Ord. No. 14773, § 3(Att. B), 7-24-2012; Ord. No. 15291, § 1(Att. A), 5-10-2016)