Helena Joyce
Water is a universal solvent, meaning it can dissolve more substances than any other liquid on Earth. This makes water particularly vulnerable to pollution. Creeks are often polluted by stormwater runoff, which carries pollutants from roofs, streets, sidewalks, driveways, parking lots, business properties, lawns, and gardens into the water. Other sources of creek pollution include industrial waste, motor oil, plastic bags, pesticides, fertilizers, detergents, and sediments. In agricultural areas, chemical fertilizers and pesticides can run into creeks and streams during rain, causing algae blooms that harm other life in the river and deplete oxygen levels as they decay. To determine if a creek is polluted, it is important to consider the surrounding environment, including human development, farming practices, and wildlife, as these factors can all contribute to water contamination.
| Characteristics | Values |
|---|---|
| Water Quality | Check for good current, sand and rocks, no muddy bottom, and no industry or cattle nearby. |
| Stormwater Runoff | Roofs, streets, sidewalks, driveways, parking lots, business properties, lawns, and gardens can all contribute to stormwater runoff, which can carry pollutants directly into creeks and streams. |
| Agricultural Pollution | Chemicals, fertilizers, and pesticides used in agriculture can contaminate water sources and cause algae blooms, reducing oxygen levels and harming aquatic life. |
| Point Source Pollution | Direct contamination from industrial waste, motor oil leaks, plastic bags, pesticides, fertilizers, detergents, and sediments. |
| Nonpoint Source Pollution | Pollutants such as motor oil, plastic bags, pesticides, fertilizers, detergents, and sediments can enter waterways through stormwater runoff. |
| Flooding | In urban areas with concrete, pavement, and roofs, water sheds quickly, increasing the risk of flooding. Floods can carry pollutants and soil into creeks and streams. |
| Chemical Disposal | Properly dispose of chemical cleaners, oils, and non-biodegradable items to prevent them from entering water sources. |
| Landscaping | Reduce the use of pesticides and herbicides, and consider landscaping that minimizes runoff. |
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What You'll Learn
Check for nearby farms, towns, or factories
When checking for pollution in a creek, it is important to consider the surrounding areas and human activities that may be contributing to water contamination. Farms, towns, and factories are potential sources of water pollution, and their proximity to a creek can provide insights into the water quality.
Farms
Agricultural activities can significantly impact water quality, and farms are often a source of water pollution. Contaminants from farms can enter nearby creeks through runoff, infiltration, and irrigation return flows. Pesticides, fertilizers, and animal manure can contaminate groundwater, leading to increased levels of nitrogen and phosphorus in the water. This can stimulate algal blooms, resulting in hypoxic conditions that are harmful to aquatic life. Soil erosion, nutrient loss, and the runoff of pesticides are also common issues associated with farms, contributing to water quality impairment.
To assess the potential impact of farms on creek pollution, look for signs of erosion, such as excessive sedimentation in the creek bed. Observe the farming practices used, such as contour strip cropping or the implementation of fenced stream crossings to minimize livestock access and damage to the stream. Check if the farm has adopted soil and water conservation practices to reduce the runoff of pollutants.
Towns
Urban areas can also contribute to creek pollution through various human activities. Wastewater from homes, stormwater runoff, and the improper disposal of chemicals, oils, and non-biodegradable items can all find their way into nearby creeks. Additionally, the use of pesticides and herbicides in residential areas can contaminate water sources.
When checking for pollution sources from nearby towns, consider the wastewater treatment practices in place. Are there measures to treat stormwater and prevent runoff? Are there regulations in place to ensure the proper disposal of hazardous substances? Assess the level of public awareness and education on water conservation and pollution prevention within the community.
Factories
Industrial activities and factories can be major contributors to water pollution. Toxic waste, chemicals, and pollutants from industrial processes can contaminate creeks and groundwater. This includes dumping toxic paint sludge, as seen in incidents like the Ford Motor Co.'s pollution of groundwater in New Jersey. Mining and smelting operations have also contaminated water with heavy metals in multiple states.
When checking for nearby factories, research the types of industries present and their waste management practices. Are there regulations and accountability measures in place to prevent industrial pollution? Have there been any reported incidents of water contamination associated with these factories? Are the factories located in low-income or minority communities, as this can indicate a pattern of environmental inequality?
In summary, when checking for nearby farms, towns, or factories that may impact creek pollution, it is crucial to consider the specific activities, practices, and contaminants associated with each. By understanding the potential sources of pollution, you can better assess the water quality and take steps towards prevention or remediation.
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Observe the creek's flow and colour
The colour and flow of a creek can indicate the presence of pollutants. A creek's flow can be affected by debris, fences, or even plants. While some debris can be beneficial, acting as habitats for local species, other debris can slow down water flow and cause flooding. Fences and plants can also block the creek, affecting its flow. Native plants are a great way to clean the water, prevent erosion, and manage floods and droughts.
The colour of a creek can be affected by algal blooms, which are caused by sunlight, slow water, or excess nutrients. Pollution can increase nutrients in the water, causing algal blooms that can vary in colour from dark green to reddish. As the algae decay, they release methane gas, causing foul odours and reducing oxygen levels in the water, which is harmful to aquatic life. White cloudy or milky water may indicate runoff from paint, cement materials, or washing equipment. Grey discoloured water with a strong sewage odour could mean a sewage overflow.
Creeks with an orange tint may be due to iron in the groundwater. In groundwater with abundant dissolved oxygen, iron forms solid mineral phases and cannot dissolve. However, in groundwater with limited or no oxygen, iron dissolves. When this iron-rich groundwater encounters atmospheric oxygen, it precipitates as small particles of iron hydroxide, which are orange.
The concentration of natural dissolved organic acids, such as tannins and lignins, can also affect the colour, giving the water a tea-like appearance. These acids are formed when plant material is broken down by organisms and dissolved in the water. While not all colour changes are harmful, it is important to be aware of the potential sources of pollution and their effects on the ecosystem.
Additionally, the quantity of streamflow or "discharge" is a critical factor in determining water quality. More flow often indicates a higher volume of contaminants and sediment due to overland runoff. As water with increased contaminants reaches bays and gulfs, aquatic plants and animals can be significantly impacted, especially during their critical life cycles. Therefore, observing the flow and colour of a creek can provide valuable information about the presence of pollutants and their potential effects on the surrounding ecosystem.
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Look out for algae blooms
Algae are always present in natural bodies of water, including creeks, and a few types produce toxins. Harmful algal blooms (HABs) occur when toxin-producing algae grow excessively in a body of water. HABs can be green, blue-green, red, or brown, depending on the type of algae. Some HABs are easy to spot, but others are hard to see because they grow near the bottom of the water body. HABs can damage the environment by depleting oxygen in the water, which can kill fish and other living creatures.
HABs can cause serious health issues and even death. For example, eating seafood contaminated by toxins from algae called Alexandrium can lead to paralytic shellfish poisoning, which may cause paralysis and even death. The algae Pseudo-nitzschia produces a toxin called domoic acid that can cause vomiting, diarrhea, confusion, seizures, permanent short-term memory loss, or death when consumed at high levels.
HABs can change how water looks and smells. The water may become discoloured, scummy, or foamy. You may see globs or mats of algae, or algae on the shore. Dead animals can also be a sign of a harmful algal bloom. HABs that bloom near the water surface can block sunlight from reaching organisms deeper in the water.
HABs are often triggered by warmer water temperatures in the summer and excessive nutrients from fertilizers or sewage waste brought by stormwater runoff. Stormwater runoff is one of the most significant threats to aquatic ecosystems in the United States. As water runs over and through the watershed, it picks up and carries contaminants and soil, which can infiltrate groundwater and concentrate in streams and rivers.
To avoid getting sick, stay out of the water if there are signs of a harmful algal bloom. Do not touch algae that has washed up on the shore and keep children and pets away from it. Algae that have washed up from a harmful algal bloom can still contain toxins that are harmful to humans and animals.
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![Water quality, bed-sediment quality, and simulation of potential contaminant transport in Foster Creek, Berkeley County, South Carolina, 1991-93 / by Ted R. Campbell and David E. Bower [Leather Bound]](https://m.media-amazon.com/images/I/61IX47b4r9L._AC_UY218_.jpg)
Be aware of stormwater runoff
Stormwater runoff is a significant contributor to creek pollution. When rain falls on impervious or resistant surfaces such as streets, parking lots, rooftops, and other developed areas, it diverts the natural flow of rainwater. The water then rushes into nearby gutters and storm drains, carrying with it any contaminants it has picked up along the way. These contaminants can include oil, fertilizers, pesticides, pet waste, heavy metals, soaps, and other pollutants. This polluted runoff then enters nearby creeks, rivers, and lakes, causing harm to the ecosystem and potentially affecting human health.
The impact of stormwater runoff on water quality is particularly significant in areas with high urbanization rates. As urban infrastructure continues to develop, the natural filtration process provided by soil and trees is disrupted, preventing rainwater from soaking into the ground. Instead, the water flows over impervious surfaces, picking up pollutants and carrying them into nearby waterways. This has led to the closure of shellfish growing areas, swimming beaches, and contamination of drinking water supplies.
To reduce the impact of stormwater runoff, individuals can take several measures. Properly disposing of waste, recycling used oil and other fluids, and maintaining vehicles to prevent leaks are essential. Additionally, washing cars at commercial car washes or on lawns instead of driveways can help reduce the amount of polluted runoff entering storm drains. Driving less and opting for alternative transportation methods can also help reduce vehicle-related pollutants.
Homeowners can also implement green infrastructure solutions, such as permeable pavement, rain gardens, and green roofs. These practices help capture rainwater, filter out pollutants, and reduce the volume of runoff entering sewer systems. By adopting these practices and supporting community stormwater planning efforts, individuals can play a crucial role in preserving the health and beauty of nearby creeks and waterways.
Furthermore, public education and awareness play a vital role in mitigating the effects of stormwater runoff. By understanding the impact of human activities on the environment, individuals can make informed choices to reduce their stormwater footprint. This includes reducing the use of fertilizers and pesticides, properly disposing of yard waste, and supporting the integration of low-impact designs in new developments. By working together and making small changes, communities can significantly improve water quality and protect the ecosystems that depend on clean, healthy creeks.
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Understand the unique qualities of water in your area
Understanding the unique qualities of the water in your area is an important first step in determining if a creek is polluted. This involves learning about the water sources in your region and how they are used and managed. Ask questions like: Where does your water come from? Is it groundwater, surface water, or a mixture of both? What is the primary source of drinking water for your community, and are there any known issues with water quality?
Another aspect to consider is wastewater management. Find out if the wastewater from your home and community is treated before being released back into the environment. This is crucial because untreated wastewater can contain harmful pollutants that contaminate creeks and other water bodies. Also, look into the stormwater management system in your area. Stormwater can pick up various pollutants as it flows over surfaces, including motor oil, pesticides, fertilizers, and sediments. Understanding where this stormwater goes and if it receives treatment is essential for assessing the potential pollution sources in your creek.
The geographical characteristics of your area also play a role in water quality. Consider the landscape and land use practices. Are there agricultural activities, industrial facilities, or dense urban development nearby? These can be sources of pollution that impact the water quality. Additionally, the presence of concrete, pavement, and roofs in urban areas can contribute to faster water runoff during storms, increasing the risk of flooding and pollutant transportation into creeks.
Research the environmental regulations and policies in your region. Learn about the standards and measures in place to protect water quality. Are there any known issues with water contamination, and what actions are being taken to address them? Are there any industries or practices that may be contributing to water pollution? By understanding the regulatory landscape, you can gain insights into the potential risks and ongoing efforts to protect the water in your area.
Finally, engage with your community and local organizations working on water conservation and protection. They can provide valuable insights into the specific challenges and initiatives unique to your region. Participate in discussions, attend meetings, and join local groups dedicated to water stewardship. This will help you stay informed about the latest developments and give you opportunities to contribute to the protection of your local water sources, including creeks.
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Frequently asked questions
There are several ways to determine if a creek is polluted. Firstly, if the creek is in a residential or commercial area, it is likely that stormwater runoff from roofs, streets, and parking lots has washed pollutants into the creek. You can also look out for signs of algae blooms, which are often caused by excess fertilizers and pesticides flowing into streams and can produce toxins that harm aquatic life.
Creek pollution can come from various sources, including industrial waste, motor oil, plastic bags, pesticides, fertilizers, detergents, and sediments. In agricultural areas, chemicals from farming and livestock production can contaminate nearby creeks.
Creek pollution can have harmful effects on the environment. It can lead to a decrease in oxygen levels in the water, causing invertebrates and fish to suffocate. Pollutants can also infiltrate groundwater and concentrate in streams and rivers, ultimately flowing into the ocean and affecting marine ecosystems.
There are several ways to help prevent creek pollution. You can minimize your use of polluting substances, properly dispose of chemicals and waste, and clean up any spills on paved surfaces using absorbent materials like cat litter or sand. Additionally, you can support policies and regulations that protect water sources and hold polluters accountable.
