Effects of NRCS Conservation Practices - National

Waterspreading Code: 640

Units: ac.

C F R P Pr O 

Soil Erosion Effect Rationale

Soil Erosion - Sheet and Rill Erosion 0

Soil Erosion - Wind Erosion 0

Soil Erosion - Ephemeral Gully Erosion 0

Soil Erosion - Classic Gully Erosion -1

Soil Erosion - Streambank, Shoreline, Water Conveyance C 0

Soil Quality Degradation

 Organic Matter Depletion 1

 Compaction 0

 Subsidence 0

 Concentration of Salts or Other Chemicals 1

Excess Water

 Excess Water - Seeps 0

 Excess Water - Runoff, Flooding, or Ponding 1

 Excess Water - Seasonal High Water Table -1

 Excess Water - Drifted Snow 0

Insufficient Water

 Insufficient Water - Inefficient Use of Irrigation Water 1

 Insufficient Water - Inefficient Moisture Management 2

Water Quality Degradation

 Pesticides in Surface Water 1

 Pesticides in Groundwater -1

 Nutrients in Surface water 2

 Nutrients in Groundwater -1

 Salts in Surface Water 1

 Salts in Groundwater -1

 Excess Pathogens and Chemicals from Manure, Bio-solid 0 

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

The action reduces runoff.

The action increases infiltration 

The action impounds surface water which reduces the potential to transport nutrients and organics downstream.

The action impounds water which has the potential to transport nutrients to groundwater.

The action increases infiltration, increasing leaching potential and reducing the potential for moving salts to surface water.

The action results in increased infiltration and potential for moving soluble salts to ground water.

Not Applicable

The action results in increased infiltration and potential for leaching soil contaminates.

Reduces runoff, ponding, and increase infiltration.

Not Applicable

Water is collected for more efficient use.

Water is distributed for more efficient use.

Not Applicable

Not Applicable

Increased infiltration may permit leaching of some salts below the root zone.

Not Applicable

Reduces runoff, ponding, and increase infiltration.

A system of dams, dikes, ditches, or other means of diverting or collecting runoff from natural channels, gullies, or streams and 

spreading it over relatively flat areas.

The action increases water infiltration and plant uptake, increasing biomass production. 

Not Applicable

Not Applicable

Not Applicable

Because of higher concentration and velocities from water collection.

Not Applicable

AL-Aso Land 

W-Water 

O-Other 

D-Developed 

FS-Farmstead 

Pr-Protected 

P-Pasture 

F-Forest 

R-Range 

C-Crop

Typical Landuse:
 Excessive Sediment in Surface Water 0

 Elevated Water Temperature 0

 Petroleum, Heavy Metals and Other Pollutants Transporte 1

 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 2

 Inadequate Structure and Composition 0

 Excessive Plant Pest Pressure 1

 Wildfire Hazard, Excessive Biomass Accumulation 0

Fish and Wildlife - Inadequate Habitat

 Inadequate Habitat - Food 2

 Inadequate Habitat - Cover/Shelter 2

 Inadequate Habitat - Water 0

 Inadequate Habitat - Habitat Continuity (Space) 0

Livestock Production Limitation

 Inadequate Feed and Forage 4

 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

Not Applicable

Not Applicable

Not Applicable

Improved soil moisture may increase plant diversity and production used as cover for wildlife.

Spreading temporarily concentrates natural precipitation.

Not Applicable

Production will be improved with uniform and consistent application of water.

Not Applicable

Improved soil moisture may increase plant diversity and production as food for wildlife.

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Site modification to improve irrigation application enhances the health and vigor of desired species.

Not Applicable

Improved soil moisture facilitates improved health and vigor of desirable vegetation therefore reducing invasion of noxious weed. 

Not Applicable

The action results in increased infiltration and potential for leaching soil contaminates.

Not Applicable

Diverted water does not generally return to surface water source. 

The action increases infiltration and reduces surface runoff.