Municipal Programs

County-level involvement plays an important role in implementing comprehensive storm water management plans. The principal authority for storm water management is the government with jurisdiction, usually a municipality. Municipalities usually have legal control of:

• Erosion and sedimentation ordinances

• Floodplain ordinances

• Storm water drainage ordinances

• Zoning ordinances

• Building codes

• Grading ordinances

Storm water management is closely tied to future land use development and management. Existing and future

Precipitation

Precipitation

FIG. 9.19.2 The urban storm drainage subsystem.
FIG. 9.19.1 Development of Stormwater Runoff and Flow in Combined Sewer Systems. (Reprinted, with permission, from W.F. Geiger, 1984, Combined sewage quantity and quality—a contribution to urban drainage planning, [Muenchen Technical Universität, Muenchen].)
FIG. 9.19.3 Developing a comprehensive storm management program.

land use development are incorporated into an integrated storm water management program as presented in Figure 9.19.3.

Many municipalities now require developers to consider future development of watersheds when designing storm water drainage systems for new development. Detention facilities are frequently required in subdivision laws, zoning ordinances, building codes, and water pollution regulations.

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