Water News Archive

Estimating Manure P App Rates

Manure phosphorus application rates should be estimated. These estimates should be based upon the most recently available information for manure nutrient concentration (manure sample) and the estimate of crop nutrient needs. Since this information is not typically available at the time of a permit application, estimating manure phosphorus application rates as part of a permit is, at best, an educated guess made without essential information.

Past Events Archive

View resources from past stormwater management conferences and workshops.

Understanding Water Quality Issues

Manure contains four primary contaminants that impact water quality: nitrogen, phosphorus, bacteria and other pathogens, and organic matter.

Other Systems

Some areas in Nebraska are not appropriate for a conventional septic tank/drainfield system or a residential lagoon. We consider these environmentally vulnerable areas.

Center Pivots

Application Uniformity of In-Canopy Sprinklers, G1712PDF version Use of in-canopy sprinklers can reduce application uniformity and increase runoff. Learn how to evaluate the efficiency of in-canopy sprinklers.

Manure Nutrient Management

Water quality protection is primary to good stewardship of our environment; and fundamental to good stewardship is application of manure and fertilizer nutrients at field-specific agronomic rates with careful consideration of timing and location. Following nutrient management principles is a requirement for compliance with Nebraska and U.S. environmental regulations for all permitted animal feeding operations.

Stormwater Regulations

The National Pollution Discharge Elimination System (NPDES), established through the Federal Water Pollution Control Act (FWPCA) Amendments of 1972 (later amended and known collectively as the Clean Water Act), regulates water quality by requiring a permit for point source pollution discharges to waters of the United States.

Crop Planning

An annual crop nutrient management plan is needed to ensure an adequate supply of nutrients to sustain profitable crop production, and to balance nutrient inputs (including manure) with crop nutrient needs. Title 130 of the NDEQ requires that a permit application include a nutrient management plan with manure sampling and analysis procedures, soil sampling and analysis procedures, and planned land application rates, methods, and frequencies.

Design & Size Requirements

Lagoon size is determined by the number of bedrooms, as well as the annual evaporation and precipitation rates for the geographic region. The lagoon size is NOT based on the square footage of the house, or the number of people living in the house because occupancy can change.

Precipitation Patterns

Another major factor in irrigation scheduling is making use of precipitation, both during the growing season and in the off season. Shown below is a map detailing the average net irrigation requirement for corn for the State of Nebraska. The net irrigation requirement is based on precipitation patterns and soils. In wet years less water is needed and in dry years more water will be needed.

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Conservation Subdivision Design

Conservation subdivision design (CSD) entails a broad range of design principles and parameters that collectively enhance environmental quality, the aesthetics and quality-of-life of residents in the subdivision, and the profitability of the development for the developer.

Manure Regulations

Livestock Waste Regulations in Nebraska are enforced by the Nebraska Department of Environmental Quality NDEQ). NDEQ administers both state and federal (EPA) environmental regulations. The governing regulations are called Title 130, Livestock Waste Control Regulations.

Groundwater Quality and Protection

In many parts of Nebraska, the natural quality of groundwater is suitable for both humans and ecosystems. However, in some areas the groundwater quality has been impacted by high levels of nitrate from human activities, or naturally high levels of uranium or arsenic. These groundwater quality issues can cause significant challenges for communities, in part because of the cost of treating groundwater to reduce contaminants to meet drinking water standards.

Troubleshooting Septic Systems

Problems sometimes occur. Some of the problems that occur include: sluggish drainage, contaminated drinking water, wastewater surfacing in the yard, odors, and pipes freezing.

Furrow Irrigation

Advantages to furrow irrigation include lower initial investment of equipment and lower pumping costs per acre-inch of water pumped. Disadvantages include greater labor costs and lower application efficiency compared to sprinkler and subsurface drip irrigation. The number of furrow irrigated acres in Nebraska has decreased from 2.4 million to approximately 1.5 million acres in the past 10 years.

Software

Nebraska P-Index, Beef Feed Nutrient Management Planning Economics (BFNMP$), Odor Footprint Tool, and more.

Bioretention Gardens

View examples of bioretention gardens in Nebraska.

Mortality Management

In Nebraska, routine livestock mortalities can be legally disposed of in five different ways: burial, incineration, composting, rendering, and disposal in a landfill. Regardless of which method is used, it is important to dispose of the animal or animals within 24 hours of death, or sooner if possible. When choosing a mortality disposal method, cost, labor input, and personal preferences usually dictate an individual’s decision.

Stormwater runoff and your well

Protecting the quality and safety of your water supply means protecting your well and the area surrounding it by not storing hazardous materials including fuel, metals and chemicals near the well, keeping livestock including horses away, and limiting applications of lawn chemicals immediately around the well. However, to protect your water supply you need to look beyond the area immediately around your well.