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Master Well Owners Network: Training Volunteers to Safeguard Drinking Water
Master Well Owners Network: Training Volunteers to Safeguard Drinking Water - Articles Articles
Learn about the Master Well Owner Network (MWON) online course that trains volunteers to teach about safe drinking water and the proper management of private water wells, springs, and cisterns. More
A screenshot of the DWIT tool
Drinking Water Interpretation Tool (DWIT) - Articles Articles
Use this online tool to create a customized interpretation of complex data found on any water test report. More
Spring Development and Protection
Spring Development and Protection - Articles Articles

Spring Development and Protection

Bryan Swistock, William Sharpe, Ph.D.

Springs occur wherever groundwater flows out from the earth’s surface. Springs typically occur along hillsides, low-lying areas, or at the base of slopes. More
Roadside Dumps and Water Quality
Roadside Dumps and Water Quality - Articles Articles

Roadside Dumps and Water Quality

Bryan Swistock, James Warren Garthe

This publication addresses the complex issue of water quality as it is affected by solid wastes that have been mismanaged, including roadside dumps. More
Windbreaks and Shade Trees
Windbreaks and Shade Trees - Articles Articles

Windbreaks and Shade Trees

Bryan Swistock

This publication provides information for homeowners interested in using shade trees and windbreaks for energy savings. More
Fish ponds provide can aesthetic beauty, wildlife habitat, fishing, swimming, as well as water for livestock, irrigation, or fire protection.
Management of Fish Ponds in Pennsylvania - Articles Articles

Management of Fish Ponds in Pennsylvania

Bryan Swistock, William Sharpe, Ph.D.

Are you building a new pond on your property? Do you already have a pond that you use for swimming, irrigation, fishing, or other activities? More
Streams provide us with water, and also give us great places to go fishing, swimming, and boating.
Watersheds - Articles Articles


Bryan Swistock, Sanford S. Smith, Ph.D.

This article explores the water cycle and the role Pennsylvania's forests play in protecting the quality of our surface water and groundwater supplies. It is part of an educational series for youth. More
Water Quality Concerns for Ponds
Water Quality Concerns for Ponds - Articles Articles
This is a summary of some common water quality parameters that may cause problems in ponds and how to detect and treat them. More
Triploid grass carp are one potential management strategy for aquatic plants in your pond
Using Grass Carp to Control Aquatic Plants - Articles Articles

Using Grass Carp to Control Aquatic Plants

Bryan Swistock, Jennifer R Fetter, Amy Galford, James Andrew Clark

This information explains how to use grass carp for biological aquatic vegetation control. More
Pond Measurements: Area, Volume and Residence Time
Pond Measurements: Area, Volume and Residence Time - Articles Articles
An explanation of basic pond measurements that are vital to basic pond management practices. More
Pond Ecology
Pond Ecology - Articles Articles

Pond Ecology

Bryan Swistock

A brief overview of the natural processes of an earthen pond and how to maintain a healthy pond. More
Pond Assessment and Inspection
Pond Assessment and Inspection - Articles Articles
This article discusses some of the critical components of a typical pond that should be identified and inspected before tackling pond management issues. More
Planktonic Algae
Planktonic Algae - Articles Articles

Planktonic Algae

Bryan Swistock

Planktonic algae floats in the water column and can sometimes be confused with muddy water. It causes the water to look green, brown or reddish in color. More
Naiad - Articles Articles


Bryan Swistock

One of the most common native, submerged pond plants in Pennsylvania. More
Interpreting Water Tests for Ponds and Lakes
Interpreting Water Tests for Ponds and Lakes - Articles Articles
This document describes parameters included in the Penn State pond/lake water test kit to help pond owners detect common water quality problems. More
A leaking pond located in central Pennsylvania.
Fixing a Leaking Pond - Articles Articles

Fixing a Leaking Pond

Bryan Swistock

Pond leaks are a very common pond management problem in PA. This article introduces the steps for determining if a pond is leaking and tips for repairing leaks. More
Figure 1. Filamentous algae as it typically appears in July or August after forming floating mats.
Filamentous Algae - Articles Articles

Filamentous Algae

Bryan Swistock

Different species of filamentous algae exist, but all have a similar growth habit. These algae begin growth in the winter and early spring on the pond bottom. More
Eurasian Water Milfoil
Eurasian Water Milfoil - Articles Articles

Eurasian Water Milfoil

Bryan Swistock

Eurasian Milfoil is an invasive, nonnative, plant with long stems, often reaching to the surface, with feather like leaves in whorls of 4 or 5 around the stem. More
Elodea (Common Waterweed)
Elodea (Common Waterweed) - Articles Articles

Elodea (Common Waterweed)

Bryan Swistock

Elodea is one of the few pond plants that can remain green all winter long. More
Duckweed and watermeal covering a pond.
Duckweed and Watermeal - Articles Articles

Duckweed and Watermeal

Bryan Swistock

Duckweed and watermeal are free-floating aquatic plants that are commonly encountered in Pennsylvania. They are commonly found in nutrient-rich ponds with stagnant or little flow. More
Curly-Leaf Pondweed
Curly-Leaf Pondweed - Articles Articles

Curly-Leaf Pondweed

Bryan Swistock

One of more than 20 pondweed species (Potamogetons) that occur in Pennsylvania, this invasive plant from Europe frequently grows to nuisance levels in ponds. More
Coontail - Articles Articles


Bryan Swistock

Coontail is a common aquatic plant in Pennsylvania ponds and lakes. It has whorls of stiff leaves that get more compact toward the end of the stem. More
Common Causes of Fish Kills in Ponds
Common Causes of Fish Kills in Ponds - Articles Articles
Fish kills are common in many ponds. This article describes common reasons for fish kills in different seasons. More
Chara and Nitella - Articles Articles

Chara and Nitella

Bryan Swistock

Nitella and Chara look like rooted, aquatic plants, but both are actually a form of algae. More
A weighted onion bag with loose barley straw.
Barley Straw for Algae Control - Articles Articles
In recent years, the use of barley straw has become more common as an alternative method for controlling excessive algae growth. More
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