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  1. Environment
  2. Water Resources and Water Quality
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WQ 40
Rainwater Harvesting for Homes and Community Gardens
Rainwater harvesting (RWH) is a practice that collects rainfall from a rooftop or other structure to be stored and used later for irrigation or other beneficial uses. Capturing and reusing rainwater is a free source of relatively clean water that can help reduce stormwater runoff on your property, while positively contributing to environmental goals of your community or region.
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WQ 39
Drainage Water Recycling for Crop Production and Water Quality in Iowa
Drainage water recycling has shown strong potential as a practice that both boosts crop production and improves water quality. Storage and recycling of drainage water can help create cropping systems that are more resilient to climate risks and provide long-term sustainability. Increased water storage can potentially provide other benefits, depending on design and management, such as wildlife habitat and flood peak reduction.

Available from the Iowa Soybean Association.
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CLG 117
A Closer Look: Stream Delivery of Nitrogen and Phosphorus
The Iowa Nutrient Reduction Strategy addresses the delivery of nutrients to Iowa’s water bodies by point sources and nonpoint sources. This publication visually illustrates the relative stream delivery of nitrogen and phosphorus from different sources across the landscape, both point sources and nonpoint sources, with arrows sized proportionally.
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CLG 118
A Closer Look: Beavers as Superheroes of Water Quality
Beavers offer a host of ecosystem benefits, including improved water quality, increased water storage, and added habitat for other wildlife. This publication explores best management practices for the rural landscape—identifying ways to work with beavers, not against them.
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CLG 116
A Closer Look: Iowa Farmland Ownership and Water Quality
Land management and conservation practices utilized by farmers and landowners play a key role in improving water quality by reducing loss of nutrients to waterways. This publication explores who owns Iowa’s farmland and who influences land management decisions.
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CLG 115
A Closer Look: What Drives Conservation Decisions in Iowa?
Iowa’s fertile soil has helped the state become a global agricultural leader. Primary decision-drivers of what conservation practices to implement and where include finances, regulation, and a commitment to conservation.
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CLG 114
A Closer Look: Harmful Algal Blooms
While algae are naturally occurring, excessive growth leads to challenges with water quality. Algae reproduce rapidly, or “bloom,” in conditions with warm, slow-moving water rich in nutrients, especially phosphorus. Some algal blooms release harmful toxins that can have significant public health impacts.
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CLG 112
Iowa Nutrient Reduction Strategy: Aiming to Improve Water Quality
This publication highlights the Iowa Nutrient Reduction Strategy’s efforts to improve water quality in Iowa. To reach the Strategy’s goal of reducing nutrient loading to the Gulf of Mexico by 45%, large scale implementation of conservation practices and significant financial investment are needed.
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CLG 109
Treat Your Water Well
If you rely on a private well for your household water and haven’t tested it in the last two years, you may be at risk for harmful nitrate exposure. This publication explores risk factors, why nitrate is a concern, and ways to protect your household.
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WQ 36
Rusty Soils and Filmy Water: Helpful or Harmful?
Today, iron is visible to us where it forms rusty-colored minerals in springs or small streams, stains soils, and forms metallic-looking rocks that are often mistaken for meteorites. These minerals often form when iron dissolved in water precipitates, like how seawater leaves salt behind when it evaporates. Have you found iron where you live? Why is it there? How do you know if it is naturally occurring or some type of contamination?
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FOR 411
Floodplain Connectivity
Floodplains enhance water quality and reduce downstream flooding.
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FOR 412
Streambank Alluvial Units
This publication reviews how streambank composition affects water quality.
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SOC 3101
Iowa Farmers and the Iowa Nutrient Reduction Strategy: Survey Results from the Upper Mississippi-Skunk-Wapsipinicon Watershed
This document reports a subset of results of a survey project that is focused on measuring changes in the human domain, mainly Iowa farmers’ knowledge, attitudes, and behaviors related to reduction of nutrient losses from farmland. The results presented in this document are specific to the Des Moines hydrologic unit code-6 (HUC6) watershed. The survey project, which is funded by IDALS and conducted by the ISU College of Agriculture and Life Sciences, is a five-year effort to collect data that will help stakeholders measure progress toward NRS objectives and to inform outreach and engagement strategies. The survey has three main objectives: measure farmer knowledge, attitudes, and behavior related to nutrient management and nutrient loss into waterways; identify barriers to and facilitators of behavior change that reduces nutrient loss; and measure change in these over time. The survey data will help to gauge progress toward NRS goals and help stakeholders to adjust and refine strategies for outreach and engagement activities that promote nutrient loss reduction on Iowa farms.
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SOC 3099
Iowa Farmers and the Iowa Nutrient Reduction Strategy: Survey Results from the Missouri-Nishnabotna Watershed
This document reports a subset of results of a survey project that is focused on measuring changes in the human domain, mainly Iowa farmers’ knowledge, attitudes, and behaviors related to reduction of nutrient losses from farmland. The results presented in this document are specific to the Des Moines hydrologic unit code-6 (HUC6) watershed. The survey project, which is funded by IDALS and conducted by the ISU College of Agriculture and Life Sciences, is a five-year effort to collect data that will help stakeholders measure progress toward NRS objectives and to inform outreach and engagement strategies. The survey has three main objectives: measure farmer knowledge, attitudes, and behavior related to nutrient management and nutrient loss into waterways; identify barriers to and facilitators of behavior change that reduces nutrient loss; and measure change in these over time. The survey data will help to gauge progress toward NRS goals and help stakeholders to adjust and refine strategies for outreach and engagement activities that promote nutrient loss reduction on Iowa farms.
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SOC 3097
Iowa Farmers and the Iowa Nutrient Reduction Strategy: Survey Results from the Des Moines Watershed
This document reports a subset of results of a survey project that is focused on measuring changes in the human domain, mainly Iowa farmers’ knowledge, attitudes, and behaviors related to reduction of nutrient losses from farmland. The results presented in this document are specific to the Des Moines hydrologic unit code-6 (HUC6) watershed. The survey project, which is funded by IDALS and conducted by the ISU College of Agriculture and Life Sciences, is a five-year effort to collect data that will help stakeholders measure progress toward NRS objectives and to inform outreach and engagement strategies. The survey has three main objectives: measure farmer knowledge, attitudes, and behavior related to nutrient management and nutrient loss into waterways; identify barriers to and facilitators of behavior change that reduces nutrient loss; and measure change in these over time. The survey data will help to gauge progress toward NRS goals and help stakeholders to adjust and refine strategies for outreach and engagement activities that promote nutrient loss reduction on Iowa farms.
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WL 17E
Aquatic Environments - Iowa's Nature Series
From the ephemeral pool of a prairie pothole to the giant pools of the mighty Mississippi, Iowa's lands are defined by their diverse, and critically important aquatic ecosystems. This article takes a deep dive into the ecology and intrigue of these systems found across the state and discusses the challenges they face and the promises of conservation actions taken there.

The Iowa’s Nature series was a collaborative project between Iowa State University Extension and Outreach, the Iowa Association of Naturalists, and the Iowa Department of Natural Resources with support from the Resource Enhancement and Protection Program. To learn more about the project, visit https://naturalresources.extension.iastate.edu/Iowas-Nature
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INRC 17
Iowa Nutrient Reduction Strategy 2018-19 Annual Progress Report
This Annual Progress Report details the progress that has been made in the complex work of reducing the loads of nitrogen and phosphorus that Iowa exports into the Mississippi River. The report discusses the work that has been done in the six years of the Iowa Nutrient Reduction Strategy and is a joint effort of the Iowa State University College of Agriculture and Life Sciences, the Iowa Department of Agriculture and Land Stewardship, and the Iowa Department of Natural Resources.
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AE 3609
A Landowner's Guide to Prairie Strips
Prairie strips are an agricultural conservation practice that uses strips of native prairie vegetation in or at the edges of field to protect soil and water and provide habitat for wildlife. This publication provides an introduction for landowners.
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AE 3610
Prairie Strips: Small Changes, Big Impacts
Prairie strips are an agricultural conservation practice that uses strips of native prairie vegetation in or at the edges of field to protect soil and water and provide habitat for wildlife. This publication summarizes the scientific research underpinning prairie strips.
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AE 3611
The Cost of Prairie Strips
Prairie strips are an agricultural conservation practice that uses strips of native prairie vegetation in or at the edges of field to protect soil and water and provide habitat for wildlife. This publication breaks down the establishment and maintenance costs of prairie strips.
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AE 3612
Farming with Prairie Strips
Prairie strips are an agricultural conservation practice that uses strips of native prairie vegetation in or at the edges of field to protect soil and water and provide habitat for wildlife. This publication provides an introduction for farmers.
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AE 3613
Installing Prairie Strips: Frequently Asked Questions
Prairie strips are an agricultural conservation practice that uses strips of native prairie vegetation in or at the edges of field to protect soil and water and provide habitat for wildlife. This publication breaks down factors farmers and landowners should consider when implementing prairie strips on their land.
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SP 435A
Reducing Nutrient Loss: Science Shows What Works
Iowa has been working for decades to protect and improve water quality through best scientific management, land use, and edge-of-field practices to reduce nutrient loss from farmland.

The Iowa Nutrient Reduction Strategy is a science and technology-based framework to assess and reduce nutrients to Iowa waters and the Gulf of Mexico.
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ENT 55
Establishing and Managing Pollinator Habitat on Saturated Riparian Buffers
Conservation practices for water quality and pollinator habitat can be complementary - using some of the same land and resources can multiply ecological benefits for water and wildlife. This publication discusses the ways saturated riparian buffers can be used for planting pollinator habitat. It provides information on site selection, preparation and establishment, management and seed mixes.
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SOC 3091
Iowa Farmers and the Iowa Nutrient Reduction Strategy: Survey Results from the Upper Mississippi-Maquoketa-Plum Watershed
This report summarizes data on farmer awareness, attitudes, and soil and water conservation practice use related to the Iowa Nutrient Reduction Strategy (NRS) in the Upper Mississippi-Maquoketa-Plum HUC6 watershed in northeast Iowa. The report will help interested stakeholders to track progress toward NRS goals on agricultural nutrient loss reduction and better understand related barriers and challenges.
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INRC 16A
Iowa Nutrient Reduction Strategy 2017-18 Annual Progress Report
The Iowa Nutrient Reduction Strategy celebrated its five-year anniversary in spring 2018. In those five years, the initiative has evolved considerably, adapting as new knowledge, understanding, and challenges arose.

This 2018 Annual Progress Report serves as the fifth overview of the progress that's been made in the complex work of reducing the loads of nitrogen and phosphorus that Iowa exports to the Mississippi River.
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SOC 3087
Iowa Farmers and the Iowa Nutrient Reduction Strategy: Survey Results from the Missouri-Little Sioux Watershed
This report summarizes data on farmer awareness, attitudes, and soil and water conservation practice use related to the Iowa Nutrient Reduction Strategy (NRS) in the Missouri-Little Sioux HUC6 watershed in northwest Iowa. The report will help interested stakeholders to track progress toward NRS goals on agricultural nutrient loss reduction and better understand related barriers and challenges.
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WQ 33
Questions and Answers about Saturated Buffers for the Midwest
A saturated buffer is an edge-of-field conservation practice that removes nitrate from subsurface tile drainage water before it enters ditches, streams, and other surface waters. When properly sited and installed, a saturated buffer will remove nitrate whenever the tile is flowing and requires little annual maintenance to ensure effective operation.

This publication provides information from researchers across the Midwest who are addressing the benefits, costs and other issues related to saturated buffers through the "Transforming Drainage" project.
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WQ 32
Performance-based Environmental Management - The Hewitt Creek Model
Find out more about this environmentally sound and economically practical watershed management model -- as farm operators and citizens cooperate.
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WQ 22
The Iowa Watershed Approach - Wetlands
Wetlands are strategically placed to capture surface runoff and drainage water. This Iowa Watershed Approach publication walks readers through the impact wetlands have on water quality, financial incentives and other benefits.
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WQ 25
The Iowa Watershed Approach - Grade Stabilization Structures
Grade stabilization structures eliminate erosion in gullies and waterways and are made of metal, wood or concrete. This Iowa Watershed Approach publication highlights the importance of grade stabilization structures and the benefits they provide.
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WQ 26
The Iowa Watershed Approach - Oxbow Restoration
This Iowa Watershed Approach publication highlights the importance of oxbow restoration and the benefits it can provides. Restoring rivers and creeks to their original course provides habitat for wildlife and improved flood storage capacity.
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WQ 23
The Iowa Watershed Approach - Farm Ponds
Farm ponds are pools of water constructed using either a dam or pit. They collect and store surface runoff, helping reduce phosphorus loads and prevent soil erosion. This Iowa Watershed Approach publication highlights the importance of ponds and the benefits they provide.
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WQ 24
The Iowa Watershed Approach - Water and Sediment Control Basins
Water and sediment control basins are designed to capture runoff during storms and slowly discharge that water through a stable outlet. This eliminates erosion while also removing pollutants. This Iowa Watershed Approach publication highlights the importance of water and sediment control basins and the benefits they provide.
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WQ 5
Cleaning Iowa's Waters with Saturated Buffers in Iowa Watersheds
Working with private land-owners in Iowa Water Quality Initiative Watersheds, saturated buffers are being established and monitored as a nitrate management practice within tile-drained watersheds. This resource will give you more information about the practice.
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WQ 4A
Applying Woodchip Bioreactors for Improved Water Quality
In the quest to manage nitrate levels in Iowa’s waters, researchers are developing new ways to keep both soil and water healthy.

The use of woodchip bioreactors is just one tool Iowa State University Extension and Outreach specialist recommend to help manage nitrates levels.

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AE 3614
Drainage Water Quality Impacts of Various In-field Nutrient Management Practices: Agriculture Drainage Research and Demonstration Site - Gilmore City
This publication discusses the results of in-field nutrient management practice research conducted at the Iowa State University Agriculture Drainage Research and Demonstration Site in north-central Iowa near Gilmore City.
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AE 3615
Drainage Water Quality Impacts of Various In-field Nutrient Management Practices: Comparison of Biofuel Systems Site
This publication discusses the results of in-field nutrient management practice research conducted at the Iowa State University Biofuel Systems Site.
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AE 3616
Drainage Water Quality Impacts of Various In-field Nutrient Management Practices: Northeast Research and Demonstration Farm
This publication discusses the results of in-field nutrient management practice research conducted at the Iowa State University Northeast Research and Demonstration Farm.
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AE 3617
Drainage Water Quality Impacts of Various In-field Nutrient Management Practices: Northwest Research and Demonstration Farm
This publication discusses the results of in-field nutrient management practice research conducted at the Iowa State University Northwest Research and Demonstration Farm.
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AE 3618
Drainage Water Quality Impacts of Various In-field Nutrient Management Practices: Southeast Research and Demonstration Farm
This publication discusses the results of in-field nutrient management practice research conducted at the Iowa State University Southeast Research and Demonstration Farm.
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SOC 3081
2016 Summary Report - Iowa Farm and Rural Life Poll
Survey results for the 2016 Iowa Farm and Rural Life Poll discuss conservation practice use, changes in farming practices and strategies and monarch butterfly conservation. Information sources farmers trust is also examined.
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AE 3602
Iowa Drainage Guide
This publication provides guidelines for drainage improvements installed on Iowa's agricultural land. It provides legal, soil management, and engineering information to farmers, engineers, contractors, farm planners, and others associated with drainage system planning, construction, and management.
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CSCAP 194 2016
Midwest Farmer Adaptive Management Responses to Perceptions of Excess Water-related Risks
A helpful handout for discussing variables that may influence farmer decisions regarding on-farm management practices, such as the decision to plant or not plant cover crops. This handout is based on research by the social science team of the USDA Sustainable Corn Project, led by Iowa State University.

More details specific to this research and handout can be found online at: https://www.researchgate.net, in a paper authored by Lois Wright Morton, Jon Hobbs, J.G. Arbuckle Jr., and Adam Loy
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PM 3072
Farmer Perspectives on Iowa's Nutrient Reduction Strategy - Iowa Farm and Rural Life Poll
This report presents survey results from the 2014 Iowa Farm and Rural Life Poll focused on farmer perspectives on the Iowa Nutrient Reduction Strategy, a science and technology-based approach used to assess and reduce nutrients delivered to Iowa waterways, the Mississippi River and the Gulf of Mexico. The intended purpose is to help stakeholders in the agricultural community and beyond understand where farmers stand on the nutrient reduction strategy to inform outreach actions.
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AMPAT 9
Animal Housing - Wet Scrubbers Overview
Wet scrubbers are used on ventilation air as it exits livestock housing. They use liquid to collect dust or particulate matter (PM) and absorb gases from air by using a wet surface, spray system, or wet material bed.

This fact sheet is part of the Air Management Practices Assessment Tool (AMPAT) developed at Iowa State University and funded by the National Pork Board. Additional resources can be found on the AMPAT web site.
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DNR 118
MAC - What to Expect when DNR Inspects
Inspections are part of a work plan agreement with the U.S. Environmental Protection Agency. It’s designed to strengthen how Iowa implements the federal National Pollutant Discharge Elimination System (NPDES) program.

What can producers expect as the Iowa DNR reviews about 8,600 large and medium-sized livestock facilities in the next five years? Find out in this 2-page publication.

The PDF is available from the Iowa DNR.
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PM 3060
Small Feedlot Runoff Management Using Low-Pressure Flood Irrigation
Find out about better management of runoff from small open feedlots using low-pressure flood irrigation. Photos and text show system design, components, and operation. Also contains several other resources for more information.
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PM 3058
Clean Water Diversion for Open Feedlots
Find out about clean water diversion around small open feedlots through pen location, gutters and downspouts for roof areas, and drainage channels for surface water. Photos, text, and tables present details of various systems.
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PM 3019
Small Open Lot Dairies in Iowa -- a producer guide
Find ways to better manage dairy feedlot manure and runoff and assess environmental impact. Includes practices that help you manage manure nutrients while protecting water quality. Explains how state and federal regulations apply to open feedlots and gives sources for technical assistance.
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PM 3018
Small Open Beef Feedlots in Iowa -- a producer guide
Find ways to better manage feedlot manure and runoff and assess environmental impact. Includes practices that manage manure nutrients while protecting water quality.

Explains how state and federal regulations apply to open feedlots and gives sources for technical assistance.
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PM 3017
Rainwater Catchment from a High Tunnel for Irrigation Use
Make high tunnels more profitable for crop production by installing a system to catch, store, and reuse the rainwater from periodic rain events. The authors describe system components, give approximate costs, and detail year-round maintenance procedures. Also described is a drip irrigation system.
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PMR 1008
Woodchip Bioreactors for Nitrate in Agricultural Drainage
Reduce nitrate in subsurface drainage systems with woodchip bioreactors. Explains how bioreactors work, how to install and use them, their positive and negative impacts, and their costs.
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PMR 1006
Rented Land in Iowa: Social and Environmental Dimensions
More than half of Iowa farmland is rented.

Decisions regarding who has access to that land and how it is farmed can influence the social and environmental outcomes of family farming.

See what the Iowa Farm and Rural Life Poll discovered about rented land in Iowa. Recommendations are suggested to ensure that non-operator landownership is either neutral or beneficial to farm operators, farmland owners, rural communities, and the land itself.
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PM 2093
2009 Summary Report - Iowa Farm and Rural Life Poll
Highlights from the 2009 farm and rural life poll include: the next generation of farmers, farm policy and commodity production, mixed livestock and grain farming, farming and food systems in rural communities, value-added agriculture, targeted conservation, nutrient removal wetlands, and personal and financial well-being.
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PM 1428A
Protecting Our Water Quality with Sprayer Calibration
Proper calibration of pesticide sprayers is critical to achieve economical crop management and responsible stewardship of natural resources. Precise application minimizes potential problems while maximizing the effectiveness of the pesticide.
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MWPS 14
Private Water Systems Handbook
Private Water Systems Handbook will help you develop and maintain a safe, adequate, and dependable water system to meet your needs. It considers both domestic and farm use. The recommendations in this handbook is considered good management practices in most areas.

Discussions include water reducing modern appliances and energy-saving equipment. Maintenance of a quality water system is essential and is discussed in detail. Wells are the most common source of water, cisterns, springs, and ponds are good choices for providing water for livestock, fire protection, and lawn watering.

Contents
  • Planning for Water Use
  • Wells
  • Catchments, Cisterns, Ponds, and Springs
  • Pumps
  • Maintaining Pressure in a Private Water System
  • Water Distribution
  • Water Quality and Testing
  • Water Treatment and Protection
  • Water Systems Maintenance Calendar
  • Appendix and Glossary
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PMR 1002
A Targeted Conservation Approach for Improving Environmental Quality
Find out how targeted conservation practices can have the most impact on environmental quality while causing only a small change in overall agricultural production. Environmental benefits are discussed related to clean air and water, productive soils, diverse wildlife and plant habitat, and biological controls for crop protection.
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IBC 8 2
Stabilized Stream and Pond Access Sites -- A Guide to Managing Pasture Water
Find out what might work for you regarding stabilized stream and pond access sites. Consider characteristics of the site, purposes of the structure, desired length of use, level of investment and availability of labor, and governmental regulations.
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IBC 8 3
Off-Stream Water, Shade and Nutritional Supplementation to Modify Animal Behavior -- A Guide to Managing Pasture Water
Another way to manage pasture water for positive water quality is to modify animal behavior. Find out about providing off-stream water, shade, and nutritional supplementation.
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IBC 8 4
Streamside Buffers -- A Guide to Managing Pasture Water
A change in management or buffer establishment will alter dramatically the look and functioning of a riparian zone in just a few years. Find out how.
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PM 2021
Data Collection Worksheet for RUSLE2 and Iowa Phosphorous Index
This worksheet provides guidelines for using the computer program RUSLE2 (Revised Universal Soil Loss Equation 2) and for calculating the Iowa Phosphorous Index. These are needed in nutrient management and conservation planning.
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PM 1335
Sampling Your Drinking Water
If your drinking water comes from a private water supply, here are some guidelines to make sure your system is safe. Information includes what to test for, when to test, collecting the sample, and selecting a lab.
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PM 1626D
Assessing the Need for a Riparian Management System -- Stewards of Our Streams
This publication provides a list of tools and considerations to help you determine what kind of riparian management system is best for you and your land.
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PM 1626C
Maintenance of Riparian Buffers -- Stewards of Our Streams
Riparian buffers that are managed and maintained are effective at reducing non-point source pollution in streams. The four major maintenance procedures, weed control, replanting and reseeding, pruning and thinning, and prescribed burning, are outlined in this brochure.
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PM 1740
Iowa: Many Rivers Run Through It -- Poster

Large wall map (24" x 36") of the many rivers in Iowa.
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PM 1626A
Riparian Buffer Systems -- Stewards of Our Streams
Restoration and management of the land’s natural riparian buffer system can improve water quality, prevent soil erosion, and build diversity that has been lost with modern land uses. Publication offers detailed information on riparian buffers.
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PM 1626B
Buffer Strip Design, Establishment and Maintenance -- Stewards of Our Streams
This publication discusses how to design, plant, and maintain a multi-species buffer strip, which is an important part of river ecosystems.
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PM 899
Shock Chlorinating Small Water Systems
Learn how to shock chlorinate a small water system to combat disease-causing bacteria and viruses that remain in a system following construction, repair, or maintenance.
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PM 1328
Successfully Plugging Your Abandoned Well - Safeguarding Your Water
Tens of thousands of old wells have been abandoned throughout Iowa, which can lead to personal injury, equipment damage, and unsafe drinking water. Read about plugging schedules, who can safely plug wells, recommended plugging materials, plugging procedures, and other information.
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PM 1329
Coping with Contaminated Wells
The most common cause of well water test failures is bacterial problems caused by well deterioration. This publication addresses how to handle contaminated well issues by looking at coliform and nitrate problems.
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PM 840
Good Wells for Safe Water
The best defenses against well contamination are good construction, periodic inspection and maintenance, and regular water testing. Detailed construction features are described here to help you plan new wells or inspect and repair existing ones.
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