Hydromodification definition

Hydromodification means changes to the stormwater runoff characteristics of a watershed caused by changes in land use.

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Hydromodification means the change in the natural hydrologic processes and runoff characteristics (i.e. interception, infiltration, overland flow, interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and changes in sediment transport. In addition, alternation of stream and river channels, installation of dams and water impoundments, and excessive streambank and shoreline erosion are also considered hydromodification, due to their disruption of natural watershed hydrologic processes.…

Hydromodification means modification of hydrologic pathways (precipitation, surface runoff, infiltration, groundwater flow, return flow, surface-water storage, groundwater storage, evaporation and transpiration) that results in negative impacts to watershed health and functions.

Examples of Hydromodification in a sentence

Hydromodification projects such as dams, dredging, channelization, sedimentation, and bank clearing are prohibited on the Protected Property.
Two management methods may by employed for controlling bullfrogs under this plan and include: • Manual direct removal • Reservoir de-watering (Hydro-modification) Implementing both reservoir de-watering and manual direct removal is currently believed to be the most effective method of managing bullfrog infestations.
Because the project would obtain a Section 401 Water Quality Certification, the project would follow the Alameda County hydromodification criteria as recommended in the San Francisco Bay Regional Water Quality Control Board’s (RWQCB’s) Memorandum of California Department of Transportation Post-Construction Stormwater and Hydromodification Standards (2008).
The Consultant will conduct a Preliminary Hydromodification Assessment which will include a qualitative assessment of the need for future hydromodification studies.
Coordinate with City Environmental Coordinator regarding projects’ conformance with most recently adopted Lompoc Storm Water Management Plan including Low Impact Development (LID) site design and Hydromodification drainage control requirements and review Storm Water Pollution Prevention Plans.

More Definitions of Hydromodification

Hydromodification means the alteration of the hydrologic characteristics of coastal and non-coastal waters, which in turn could cause degradation of water resources.

Hydromodification means the alteration of a natural drainage system through a change in the system' s flow characteristics.

Hydromodification means the alteration to the patterns and processes of runoff and sediment transport from a watershed into its receiving waters as a result of land use changes, in a manner that generally produces changes to the physical, chemical, and/or biological condition(s) of those receiving waters.

Hydromodification means changes to the storm water runoff characteristics of a watershed caused by changes in land use.

Hydromodification means the alteration of a natural drainage system through

Hydromodification means the alteration away from a natural state of stream flows or the beds or banks of rivers, streams, or creeks, including ephemeral washes, which results in hydrogeomorphic changes.

Hydromodification means alteration of the hydrologic characteristics of coastal and non-coastal waters, which in turn could cause degradation of water resources. Any alteration to a stream or coastal waters, whether a diversion, channel, dam, or levee is considered a hydromodification.