Effects of NRCS Conservation Practices - National

Sediment Basin Code: 350

Units: no.

C F R P Pr FS D O AL

Soil Erosion Effect Rationale

Soil Erosion - Sheet and Rill Erosion 0

Soil Erosion - Wind Erosion 0

Soil Erosion - Ephemeral Gully Erosion 2

Soil Erosion - Classic Gully Erosion 2

Soil Erosion - Streambank, Shoreline, Water Conveyance C 0

Soil Quality Degradation

 Organic Matter Depletion 0

 Compaction 0

 Subsidence 0

 Concentration of Salts or Other Chemicals 0

Excess Water

 Excess Water - Seeps -2

 Excess Water - Runoff, Flooding, or Ponding 2

 Excess Water - Seasonal High Water Table -2

 Excess Water - Drifted Snow 0

Insufficient Water

 Insufficient Water - Inefficient Use of Irrigation Water 0

 Insufficient Water - Inefficient Moisture Management 0

Water Quality Degradation

 Pesticides in Surface Water 2

 Pesticides in Groundwater -1

 Nutrients in Surface water 5

 Nutrients in Groundwater -1

 Salts in Surface Water 2

 Salts in Groundwater -1

 Excess Pathogens and Chemicals from Manure, Bio-solid 2 

 Excess Pathogens and Chemicals from Manure, Bio-solid -1 

A basin constructed with an engineered outlet, formed by an embankment or excavation or a combination of the two.

Not Applicable

Not Applicable

Not Applicable

Controlled flow will reduce gulley erosion down slope of basin

Controlled flow will reduce gulley erosion down slope of basin. 

Stream bank erosion due to flows are reduced because of controlled flows, but 'clean' water from basin could create stream bank 

erosion.

AL-Aso Land 

W-Water 

O-Other 

D-Developed 

FS-Farmstead 

Pr-Protected 

P-Pasture 

F-Forest 

R-Range 

C-Crop

Typical Landuse:

Retarded water in basin will infiltrate adding to subsurface water.

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Stored water in basin will infiltrate adding to seepage problem.

Basin will retard flows reducing the runoff and controlling water releases.

The action collects and stores adsorbed pesticides.

Water containing pesticides may seep from the basin.

The action will tend to accumulate contaminants attached to sediments, and infiltrating waters will remove soluble contaminants.

Nutrients impounded could contaminate groundwater.

Basins will tend to accumulate contaminants attached to sediments, and infiltrating waters will remove soluble contaminants.

Infiltrating water in the basin may move soluble salts to ground water.

Basins will tend to accumulate contaminants attached to sediments, and infiltrating waters will remove soluble contaminants

Infiltrating water in the basin may move pathogens to the ground water.
 Excessive Sediment in Surface Water 4

 Elevated Water Temperature 0

 Petroleum, Heavy Metals and Other Pollutants Transporte 2

 Petroleum, Heavy Metals and Other Pollutants Transporte -1

Air Quality Impacts

 Emissions of Particulate Matter (PM) and PM Precursors 0

 Emissions of Ozone Precursors 0

 Emissions of Greenhouse Gases (GHGs) 0

 Objectionable Odors 0

Degraded Plant Condition

 Undesirable Plant Productivity and Health 0

 Inadequate Structure and Composition 0

 Excessive Plant Pest Pressure 0

 Wildfire Hazard, Excessive Biomass Accumulation 0

Fish and Wildlife - Inadequate Habitat

 Inadequate Habitat - Food -1

 Inadequate Habitat - Cover/Shelter -1

 Inadequate Habitat - Water 0

 Inadequate Habitat - Habitat Continuity (Space) 0

Livestock Production Limitation

 Inadequate Feed and Forage 0

 Inadequate Shelter 0

 Inadequate Water 0

Inefficient Energy Use

 Equipment and Facilities 0

 Farming/Ranching Practices and Field Operations 0

CPPE Practice Effects: 0 No Effect

5 Substantial Improvement -1 Slight Worsening

4 Moderate to Substantial Improvement -2 Slight to Moderate Worsening

3 Moderate Improvement -3 Moderate Worsening

2 Slight to Moderate Improvement -4 Moderate to Substantial Worsening

1 Slight Improvement -5 Substantial Worsening

Infiltrating water in the basin may move soluble contaminants to the ground water.

Basin retains sediment, decreasing runoff turbidity.

Although water retained in basin is warmer than flowing surface water, discharge to surface waters is unlikely. 

Basins will tend to accumulate contaminants attached to sediments.

Any food species are eliminated in the area used for the basin.

Not Applicable

Not Applicable

Not Applicable

Proper siting and management are required If used as part of an agricultural waste management system 

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Captured water in basins can supplement stock water.

Not Applicable

Not Applicable

Any cover is eliminated in the area used for the basin.

Water is temporarily stored, and sediment and debris are removed from runoff.

Not Applicable

Not Applicable

Not Applicable