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Souris River Watershed Management Plan
Souris River Watershed Management Committee TABLE OF CONTENTS EXECUTIVE SUMMARY ACKNOWLEDGEMENTS 1.0 INTRODUCTION 2.0 BACKGROUND INFORMATION 3.0 THE WATERSHED PLANNING PROCESS 4.0 VISION STATEMENT, GOALS, OBJECTIVES, AND STRATEGIES 5.0 IMPLEMENTATION 6.0 GLOSSARY 7.0 BIBLIOGRAPHY EXECUTIVE SUMMARY The Souris River Watershed Management Plan was prepared to serve as a guide to managing natural resources while ensuring environmental, economic, and social sustainability. While it is not intended to be a technical report, this plan accurately reflects the wishes of the community revealed during of a series of workshops held during the fall and winter of 2005-06. Implementation will be ongoing and the plan will be updated as conditions change and the needs of the community evolve. The document itself consists of five key sections. Firstly, the INTRODUCTION provides a brief history of the Souris area's reliance on the Souris River Watershed, and the importance of this relationship. Secondly, BACKGROUND INFORMATION outlines the specific characteristics of the Souris River Watershed, the current status of the watershed from a management perspective, as well as the particular problems that it faces. Included among these are the following: 1 – Anoxic Events/Eutrophication Thirdly, WATERSHED PLANNING PROCESS details the procedure followed to compile this document and present it as an accurate reflection of the needs of the community. Next, VISION STATEMENT, GOALS, OBJECTIVES, AND STRATEGIES identifies the specific course of action that will be implemented to address the concerns of the watershed stakeholders. As the core of this document, this section details in a prioritized manner the specific methods needed to enhance the watershed. The following Vision Statement and Goals were identified by the watershed community: Vision Statement "A healthy sustainable community, based on environmental, economic, and social values, with special consideration for resource-based industries including agriculture, tourism, fisheries, forestry, and aquaculture" Goals 1 - Improve and Protect Water Quality (Ground and Surface) 2 - Restore and Protect Fish and Wildlife Habitat 3 - Preserve Sites of Environmental and Historical Significance 4 - Improve Active Living and Recreational Opportunities 5 – Advocate and Reward Stewardship 6 - Manage Watershed Resources Through Compromise and Respect 7 – Enhance Communication and Educational Opportunities Finally, IMPLEMENTATION emphasizes the fact that the watershed planning process must be ongoing and will require continued attention. In addition, this section illustrates the need for collaboration between the community, the Watershed Management Committee, and the Municipal, Provincial, and Federal governments if watershed management is to be successful. As an additional resource, a glossary is provided to highlight important terms contained within the document. ACKNOWLEDGEMENTS Souris River Watershed Management Committee The Souris River Watershed Management Committee provided guidance throughout the watershed planning process. Committee members include Paul Campbell (President, Souris Wildlife Federation), Paul Deveau (Chairperson, Souris River Watershed Management Committee), Johnny Flynn (Vice-Chairperson, Souris River Watershed Management Committee), Fred Cheverie (Coordinator, Souris River Watershed Management Committee), Colin MacAulay, Ryan Keenan, Cameron Ross, Walter Townshend, Billy Trenholme, Paul Gallant, Tommy MacDonald, Brian Deveau, Trent MacPhee, Allan Arsenault, David MacAulay, Brian Murray (Soil and Water Technologist, Agriculture and Agri-Food Canada), Dale Thompson (Eastern PEI Watershed Coordinator, Dept. of Environment, Energy, and Forestry) and Bruce Raymond (Manager, Watershed Management Section, Dept. of Environment, Energy, and Forestry). The Souris River Watershed Management Committee acknowledges Dale Thompson, Eastern PEI Watershed Coordinator, and Bruce Raymond, Manager, Watershed Management Section (PEI Department of Environment, Energy, and Forestry) for their work during the initiation process with Paul Gallant, Past President of the Souris and Area Wildlife Branch. This led to a contract funded by the Canada-Prince Edward Island National Water Program in collaboration with the Souris and Area Branch of the PEI Wildlife Federation. After an intensive application and interview process, the Souris River Watershed Management Committee hired Fred Cheverie as Watershed Coordinator to steer the process over the ensuing months. Community Involvement Special thanks to the many community members who regularly attended the watershed workshops and added their valuable input to the planning process. On average, approximately thirty-forty people representing a variety of community sectors were in attendance at these information sessions. Without this tremendous involvement, the Souris River Watershed Management Plan would not be representative of the community members needs, and thus would not serve the community properly. Additional Contributors MacPhee's IGA – Financial contributor Canada-Prince Edward Island National Water Program The Canada-Prince Edward Island National Water Program (CPEINWP), delivered by Agriculture and Agri-Food Canada (AAFC), provides initiatives that assist the agricultural community to address water concerns related to quantity and quality. The program is funded by the National Water Supply Expansion Program (NWSEP). The CPEINWP is carried out under the authority of the NWSEP and is structured specifically for P.E.I. producers. The CPEINWP has provided core funding for the watershed planning process in Souris River watershed. PEI Watershed Management Fund The Watershed Management Fund (WMF) of the PEI Department of Environment, Energy, and Forestry provides support to community-based organizations that are involved in the watershed planning process, with an emphasis on a holistic watershed approach. The WMF has provided direct financial assistance and technical support to the Souris River Watershed Management plan. Watershed Plan Co-writers This document was composed primarily by Fred Cheverie and Dale Thompson, with assistance from Garry Gregory (U.P.E.I. student). For purposes of this document acronyms are used sparingly. Key Partners
1.0 INTRODUCTION The people of the Souris area have had a longstanding and intimate relationship with the Souris River. Waterways of the Souris River watershed have been the building blocks of area communities, and have subsequently been incorporated into the lifestyle of the people. The river is a prominent and defining characteristic of the Souris area, and the people have developed a complex dependency on its resources. The watershed helps to support the area in a number of ways. Environmentally, the Souris River Watershed has an immeasurable impact. Its' streams support a tremendous number of species of flora and fauna, all of which form relationships that constitute a vital ecosystem. The Souris River is an important element in this fragile balance, and all other components are dependent on its success. Economically, the river has had an impact from both contemporary and historical perspectives. Souris has a proud heritage as a shipbuilding center, a tradition that was based on the river's banks. The aquaculture industry has more recently arisen as a main dependent on the Souris River's resources, and the current problems faced by its' beneficiaries attest to the importance of the river's health. Socially, the Souris River watershed continues to be fundamental to the success of the area as a whole. Social events have long been centred on the river and its tributaries, and the recreational fishery of the area persists as a rewarding way to actively engage the outdoors. Historically, the community has had a positive relationship regarding land usage between landowners, fishermen, and hunters. Perhaps the most pertinent, although often overlooked, manner in which the Souris River Watershed impacts the people is through groundwater. The underground reservoirs of water are the stores into which wells are tapped, and thus constitute our drinking water. The quality of this groundwater directly influences the health of those who draw on it. The majority of people in the watershed community have enjoyed predominantly clean drinking water up to date, but current trends in other regions expose the potential for dangerous contamination. With so many facets of life directly related to the health and success of the area's water resources, it is essential that every effort be made to maintain and enhance the quality of the Souris River Watershed. The water resources within the Souris River Watershed are interconnected. Activities that take place at any point in the watershed can impact upon the entire watershed's water quality. Given this interconnection, the only way to effectively deal with water quality issues is to plan and manage on a watershed basis. The Souris River, like many PEI watersheds, has a history of water quality problems. These have included eutrophication and anoxic events, fish kills, bacterial contamination and shellfish closures, soil erosion, and other land use issues. The Souris and Area Branch of the PEI Wildlife Federation (SAB) recognized that the Souris River had great potential, but was negatively impacted by past and present human activities. In late 2004, the SAB received funding from the CPEINWP to undertake watershed planning. The Stanley-Hope River watershed (Trout River Environmental Committee) and the West River watershed (Central Queens Branch of the PEI Wildlife Federation) also received NWP funding; these three watersheds are considered to be "pilot" projects for watershed planning on Prince Edward Island. It is the hope of the Souris River Watershed Management Committee (SRWMC) that the diligence put into the development of this plan will not only guide the management and enhancement of our area's natural resources, but will also serve as a template for other regions wishing to take the same initiative. 2.0 BACKGROUND INFORMATION 2.1 Souris & Area Branch, PEI Wildlife Federation
2.2 Souris River Watershed The Souris River Watershed, located in Eastern Kings County, Prince Edward Island, consists of 5971 hectares of land and 50 kilometers of stream draining into Colville Bay. The majority of the watershed is forested, while a significant portion is considered agricultural land. Wetlands constitute only a small area of the watershed (Figure 1). For management purposes, Norris Pond, a small watershed taking in a portion of the Town of Souris and including the Town's wellfield, has been included.
The watershed includes all or a portion of the communities of Bear River, Chepstow, Gowan Brae, Harmony Junction, New Zealand, Rollo Bay, Rollo Bay West, St. Catherines, Sheep Pond, Souris East, Souris Line Road, Souris River, and Souris West, as well as the Town of Souris (Figure 2). The watershed is a mosaic of woodlots, agricultural areas, and private residences interspersed with paved and clay roads. Resource-based industries are prominent, particularly agriculture but also including fishing, forestry, aquaculture, and tourism, and the economy is largely seasonal. The agricultural producers in the watershed are recognized as some of the most progressive on PEI as is demonstrated by their willingness to participate in nutrient management and soil conservation projects. The Souris River is one of seven Eastern Kings watersheds included as part of a provincial stewardship strategy for fish and fish habitat on PEI. These watersheds were selected based on their relatively pristine conditions, as well as their potential for trout and salmon habitat, the presence of remnant populations of late-run salmon, and the recreational opportunities that they provide. Souris River has a healthy population of brook trout and rainbow trout that provide opportunities for fly and bait fishing. Also present is a remnant population of Atlantic salmon, as is evident from occasional catches of salmon parr and smolt. The largest community within the watershed is the Town of Souris itself. Souris is a picturesque fishing town with a population of approximately 1300 people. Overlooking Colville Bay, it has a deep-water port and serves as a ferry terminal between P.E.I. and les Iles-des-Madeleines Islands. The town has a central water system supplied by five wells with a pumping capacity of 53,000 L/min. It has a secondary sewage treatment plant with ultraviolet disinfection capability.
![]() Map courtesy of Dept. of Environment, Enery & Forestry The Souris lift station on Beach Ave. was upgraded in 2004/2005. This work included upgrading of the building, capping/removal of overflow piping, and the installation of backup generation power. Prior to completion of this work, an electrical outage resulted in the potential for this lift station to overflow onto the estuary. The town's two major employers are based on the agriculture and fishing industries. Agrawest Investments Ltd. employs approximately 100 people and operates a high volume dehydrated potato granules flour processing facility. Ocean Choice PEI, a subsidiary of Ocean Choice International Inc., employs approximately 500 people in peak season and is a major processor of lobster and other species of fish. 2.3 Anoxic Events / Eutrophication The Souris River has a history of water quality problems related to over-enrichment. Like many watersheds on PEI, nitrate levels in groundwater are increasing. Nitrate, a compound that is water-soluble and enters the watercourse primarily through percolation, is the principal nutrient in estuarine waters. Excessive growth of sea lettuce has affected the tourism and aquaculture industries. Aesthetic problems have been created and quality of life of residents has been negatively influenced (see picture). Several anoxic events have been confirmed or suspected.
In an effort to mitigate a long-standing odor problem caused by decaying sea lettuce, an experimental infilling project was undertaken in 2003. A portion of the cove near Danny Grant's stream was infilled in hopes that sea lettuce would be lifted up on this new "salt marsh" by the rising tide. The sea lettuce would then be left behind by the falling tide and dry out, thus reducing the odor problem. This experimental project is still under evaluation. 2.4 Fish Kills Fish kills are localized events characterized by the death of a significant number of individuals within a population. Resulting from either agricultural (and other) contamination or anoxic conditions, these events are extremely detrimental to both fish stocks and the ecology of the river system as a whole. Although records exist in other areas of Prince Edward Island, an anoxic fish kill is not known to have occurred within the Souris River Watershed. Two pesticide related fish kills are known to have occurred in the Souris River in recent years. In July 1999, approximately one km of a tributary crossing the Manning Road on the West Branch was affected. In July 2000, a fish kill was investigated on the East Branch, which impacted upon approximately five km of stream from Harmony Junction to Gowan Brae. In both cases, run-off from nearby potato fields is believed to have been the cause of the fish kills. Contributing factors in both incidents included: localized, intense rainfall events; a recent application of pesticides; and excessive row length in relation to the slope of the fields. In the 1999 incident, run-off from the adjacent potato field entered the stream directly with no opportunity for filtering; in 2000, run-off from the adjacent potato field was allowed to concentrate and enter the stream in a small area. While it is possible that there have been other pesticide related fish kills over the years that went unnoticed or were not reported, fish kills have not been reported in the watershed since 2000. This is due to newly introduced legislation regulating buffer zones near watercourses, and the banning of the toxic insecticide Azinphos Methyl. In addition, a main reason for the lack of fish kills is due to the increased efforts and diligence on the part of agricultural producers. Producers continually upgrade themselves on pesticide use. 2.5 Bacterial Contamination / Shellfish Closures Testing is currently underway in an effort to determine sources of contamination. Potential sources of fecal coliform include animal waste originating from livestock operations or large concentrations of migratory birds or other wildlife and human waste originating from improperly functioning septic systems. As mentioned, the Beach Ave. lift station operated by the Town of Souris has been modified to prevent overflow of raw sewage into the estuary, eliminating this as a possible contributing factor. 2.6 Soil Erosion 2.7 Wetlands The wetlands of the Souris River watershed are a critical component in the efficient functioning of our water system. Previously viewed as useless land and assigned very little practical value, it is now known that wetlands perform a number of essential functions that enable the watershed system as a whole to prosper. Wetland vegetation is capable of purifying surface water by filtering out a portion of pollutants, including nitrates, bacteria, and pesticides that enter the watercourse via runoff. In recognition of the essential role that they play, it is of utmost importance that our wetlands remain intact to combat this form of contamination. In addition to their filtering properties, wetlands also play a significant role in regulating the flow of water throughout the watershed. The comparison of wetlands to a sponge can prove to be an apt analogy, as the wetlands act to absorb excess water released by spring thaws or heavy rains. Natural mechanisms to prevent flooding, wetlands are able to buffer otherwise excessive flows of water to more manageable levels. The wetlands of the Souris River watershed also contribute greatly to the diversity of flora and fauna. The features characteristic of these areas offers a unique and delicate habitat that constitutes an important ecological niche (see Figure 5, page 16). Many species of plants and animals have evolved to effectively exploit this niche, and subsequently depend on the maintenance of these areas for their survival. Fish, frogs, ducks, and songbirds are all known to at least partially rely on wetlands to breed, feed, or seek refuge. A living ecosystem, wetlands help to contribute to a substantial diversity in terms of plant and animal life. 2.8 Water Budget A groundwater flow model was developed by the Department of Environment, Energy, and Forestry in support of watershed planning for Souris River. This model can be used to predict potential impacts of future groundwater withdrawals and can be upgraded to simulate the migration of contaminants (such as nitrate) in groundwater. It will be a valuable aid in managing water resources. Overall groundwater use in the Souris watershed is 2474 m3/day (Table 1). This represents an annual consumption of 3.4 % of the total volume of renewable groundwater resources (Table 2). Much of the groundwater extraction (utilizing 23.5% of the renewable groundwater resources in Norris Creek) occurs in the Norris Creek watershed, which supplies the Town's central water system. Groundwater extractions usually result in stream flow reduction. Stream levels are directly correlated to the amount of water pumped out of the watershed. The model can demonstrate the stream flow reduction but cannot determine what impacts due to groundwater extractions are sustainable. What reduction level is acceptable is being studied and this is an on-going project. The Department of Environment, Energy and Forestry currently has limitations on deep water extraction. 2.9 Wellfield Protection Strategy Recent legislation implemented by the provincial government requires all municipalities to develop a management plan to protect their water supply. As a result, the Town of Souris has secured the professional services of Conestoga Rovers Ltd. to design a feasible management strategy for their wellfield. While this plan is in the development process, a draft copy has been completed. To function properly in a protective capacity, a wellfield strategy must incorporate several key components. Firstly, it is essential to create a knowledgeable advisory committee to supervise the implementation of the plan. To be most effective, this group should include community representatives from relevant sectors, and should maintain frequent contact with government officials. A cooperative relationship between this group and the Souris River Watershed Management Committee would be particularly beneficial, as both share a common concern for the health of water resources. Thirdly, all potential contaminants within these protection zones must be identified. Included among these substances are fuels, fertilizers, and pesticides common to traditional land use. It is crucial that these possible sources of contamination be recognized to ensure the prompt and proper containment of potentially harmful pollution. Finally, specific protection strategies to protect the Town's water resources must be formulated. Preventative measures must be taken regulate the use of toxic substances and, in the event of contamination, strict emergency procedures must be in place to resolve environmental issues. These basic guidelines, while certainly subject to revision, provide the Town of Souris with an explicit plan of action to protect it's water supply. 2.10 Current Management Status Although there are many problems currently facing the Souris River Watershed, it's important to maintain a balanced perspective. In comparison to many PEI watersheds, we are in an enviable position. Conditions throughout the watershed, although exhibiting some variation, are generally at a state where the application of proper management techniques can still have a significant effect. Nitrate levels in the groundwater (Figures 7 and 8), for example, are not so high as to approach dangerous levels for drinking water but could have an effect on wildlife. Implementing better soil and nutrient management techniques may effectively halt their recent increases. Air quality in the Souris River watershed and Eastern PEI is generally good. The long-range transport of air pollution is the single largest component that contributes to poor air quality events in the watershed. Although local emissions are minimal, transport of pollutants from nearby heavily populated and industrialized regions (eastern US, Ontario and Quebec) can result in poor air quality in PEI. We recognize the importance of clean air. However, considering that the majority of pollution originates elsewhere and is to a great extent beyond the scope of what can be accomplished through watershed management in Souris River, air quality was not raised as an issue that can be addressed through this management plan. The Souris River Watershed is not in a state of complete disrepair, but is in need of diligent enhancement, maintenance, and protection. With involvement and a willingness to change, past mistakes can be translated into future progress. 3.0 THE WATERSHED PLANNING PROCESS Cooperation between all groups of people is essential in the formulation and implementation of an effective management plan. This plan is the result of a series of a series of community meetings and workshops held in 2005 and 2006. It reflects the vision, goals, and objectives of the watershed community (residents and all other interested parties). 4.0 VISION STATEMENT, GOALS, OBJECTIVES, AND STRATEGIES The following vision statement, goals, objectives, and management strategies are those of the watershed community. They form the backbone of this plan. 4.1 Vision Statement 4.2 Goals, Objectives, and Strategies For the purpose of formulating an effective and realistic management plan for the Souris River Watershed, it is necessary to prioritize the proposed strategies. Many issues are of pressing importance, and the strategies that address these problems must be implemented as soon as possible. These strategies are defined as immediate (1-3 years) in this document. Other issues, while still significant, can be addressed properly in the near future. These strategies are defined as short term (3-5 years) in this document. Finally, there are some proposed strategies that will take a period of time to apply, and these require ongoing attention. These often involve discussions with government, or are intended to be continuing projects. In this document, these strategies will be defined as long term (5-15 years). This method of classification is intended to serve as a guideline for the management of the Souris River Watershed. All problems facing the watershed are important, and as such will be addressed as promptly and effectively as possible. (2) – Identify and address sources of bacterial contamination (3) – Identify and address sources of nutrient enrichment Short Term Strategies (3-5 years): (4) – Educate the public about improperly functioning septic systems (5) – Identify and address dump sites Long Term Strategies (5-15 years): (6) – Develop a plan (in consultation with TPW) to protect water quality (7) – Develop a plan within the aquaculture industry to reduce litter, improve aesthetics, and prevent contamination on Souris River Short Term Strategies (3-5 years): (9) – Advocate and encourage regular sampling of well water and lobby government for reduced cost for sample analysis (10) - Disseminate information to watershed stakeholders (monitoring trends, test results, progress) on a regular basis Short Term Strategies (3-5 years): (13) – Educate the public on the effective operation of septic systems Long Term Strategies (5-15 years): (15) – Promote discussions between agricultural producers, processors, government, and the public to seek change in industry requirements that will have a positive impact on the environment (17) – Support and assist the Souris and Area Branch, PEI Wildlife Federation, in securing funding for improving wildlife habitat (18) – Implement beaver and invasive species management plans for Souris River watershed (19) – Determine priority areas for enhancement work in consultation with government and the watershed community (20) – Initiate discussion with anglers, hunters, and trappers on future management needs (21) – Work with landowners to improve fish and wildlife habitat (22) - Implement a plan to inventory salmonid species and movements in consultation with government (24) – Conduct research to consolidate existing information (library, local knowledge, etc) (26) - Provide incentives for landowners to preserve these sites (28) – Place signage to indicate public access sites and promote courteous use (30) – Coordinate efforts between government, non-government organizations and individuals in securing funding and promoting recreational activities (33) – Develop a plan to address potential liabilities Long Term Strategies (5-15 years): (35) – Lobby government to develop new programs that promote and reward stewardship (39) – Support organizations that promote outdoor educational activities (40) – Educate the public on the impact of individual activities (41) – Enhance communication between government and watershed stakeholders (42) – Enhance environmental awareness through a series of public presentations Long Term Strategies (5-15 years): (43) – Promote farm, aquaculture, and wildlife habitat tours Watershed Planning is an ongoing process that requires a stable source of funding in order to be successful. Implementation will be ongoing indefinitely, and this plan will need to be revisited regularly as conditions change and the needs of the community evolve. The planning process in the Souris River watershed has been very successful to this point and holds great potential for the future. The Souris River watershed community has demonstrated their willingness to adopt watershed planning and the SAB has the capacity to proceed with management plan implementation. However, without additional funding over the long term, the planning process will not be successful. It is hoped that the various potential sources of funding (Provincial Government, Federal Government, and NGO's) will recognize the importance of watershed planning and collaborate to help ensure that sufficient funds are available for Souris River and all other interested watersheds. Although the involvement of all three levels of government is essential to the success of this management plan, it is fundamentally important that community members within the watershed actively participate in its implementation. The watershed is a natural resource that is critically important to the success of the community, and as such it is the responsibility of the people to support and protect it. The Souris River Watershed Management Committee encourages everyone to become involved and contribute to the enhancement of the community's watershed. 6.0 GLOSSARY Anoxic - Refers to conditions in a body of water where oxygen levels are low or absent. Such conditions are detrimental to most forms of aquatic life. Bacterial Contamination - The presence of unacceptable levels of bacteria in an estuary, resulting in the closure of the area to shellfish harvesting. Best Management Practices (BMPs) - Management practices which serve to integrate on-farm goals for crop and/or livestock production, sustainability, and environmental quality. Berm - A raised bank of earth used by farmers to reduce soil erosion. Coast seepage - Groundwater discharge directly into salt water on the outer coastline. Cropline - The boundary between row crops and cereal/forage crops in a strip cropped field. Eutrophication - Having waters rich in mineral and organic nutrients that promote a proliferation of plant life, especially algae, which reduces the dissolved oxygen content and is detrimental to most forms of aquatic life. Evapotranspiration - The combined process by which water is discharged to the atmosphere through evaporation from soil and surface water and transpiration by plants. Grassed Waterway - A shallow, grassed channel used to control soil erosion where water flows through the lowest elevations in a farm field. Groundwater - Water below the surface of the earth that serves as the only source of drinking water on P.E.I. Nitrate - The water-soluble form of nitrogen and one of two primary limiting nutrients to aquatic productivity (the other being phosphorous). Nitrate enters groundwater primarily through percolation. It eventually returns to the surface as base flow (from springs and seeps) in our streams, and finally ends up in the estuary. Excessive nitrate levels in estuaries can, in combination with other factors, contribute to excessive growths of vegetation and anoxic conditions. Nutrient Management - An agricultural management technique that involves applying manure and/or fertilizer at a rate that will meet crop requirements without leaving unused nutrients behind. The goal of nutrient management is to maintain crop yields, maximize cost effectiveness, and protect soil and water resources. Nutrient Overload - Refers to excessive nutrient inputs and the conditions that develop as a result. Nutrient overload can lead to excessive growths of vegetation and anoxic conditions in ponds and estuaries. Percolation - Drainage or seepage through a porous material. Phosphorous - One of two primary limiting nutrients to aquatic productivity (the other being nitrogen). Unlike nitrate, phosphorous is not water-soluble. It binds to soil particles and enters surface waters with soil particles carried by run-off. Riparian Zone - Refers to the area adjacent to a river, stream, pond, or other body of water. Recharge - The total amount of groundwater recharge within a watershed on an annual basis. River leakage (estuary) - Groundwater discharge directly into the estuary. Stream leakage - Groundwater discharge directly into freshwater streams; also stream recharge directly into groundwater. Soil Conservation - The process of implementing measures that reduce on-farm soil erosion caused by wind, water, and tillage. Terrace - A raised bank of earth having vertical or sloping sides and a flat top. Water Budget - The total quantity of groundwater available, usually calculated on a watershed basis. A water budget can be used to determine the potential impact of future development on water resources. Watershed - All of the land that drains surface water and groundwater to a particular river system. Watershed boundaries are high points of land where water flows into distinct watersheds at lower elevations. Watershed Planning - A community driven process of managing natural resources, particularly water, to ensure environmental, economic, and social sustainability. Wellfield - An area containing more than 1 pumping well that supplies water to a public water system. 250 day travel boundary - The boundary of a specific area within which the groundwater takes 250 days to travel a specified horizontal distance, i.e. to a wellfield. 5 year travel boundary - The boundary of a specific area within which the groundwater takes 5 years to travel a specified horizontal distance, i.e. to a wellfield. 25 year travel boundary - The boundary of a specific area within which the groundwater takes 25 years to travel a specified horizontal distance, i.e. to a wellfield. 7.0 BIBLIOGRAPHY Avery, Larry. Souris River Watershed Management and Work Plan. December 1994. Crane, C.S., B.G. Raymond, D. A. Campbell, and P. K. Ward. Water Quality in the Souris River Estuary. May 2004. Department of Fisheries, Aquaculture, and Environment. The 2000 Souris River Fish Kill Report July 20, 2000. No Date. Department of Technology and Environment. The 1999 Fish Kill in a Tributary of the Souris River. No Date. Foster, Lindsay. A Fish and Fish Habitat Stewardship Strategy for Prince Edward Island Pilot Project: Eastern Kings, P.E.I. March 2005. Jiang, Yefang. Groundwater Flow Modelling of the Souris River Watershed. June 2006. All pictures appearing on this site or its associated flickr account are the property of the photographers and the Souris & Area Branch of the P.E.I. Wildlife Federation.
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