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63-620: The Fountain Formation was named by geologist C. W. Cross in 1894 for exposures along Fountain Creek in El Paso County, Colorado . The Fountain Formation is found along the Front Range of Colorado. To the north, the Formation unconformably overlies Precambrian granite and gneiss. To the south, it overlies Mississippian, Ordovician and Devonian Limestones, as well as Cambrian sandstones. Outcrops of

126-566: A flush toilet to make things "disappear" is soon recognized by young children who may experiment with virtually anything they can carry to the toilet. Adults may be tempted to dispose of toilet paper , wet wipes , diapers , sanitary napkins , tampons , tampon applicators, condoms , and expired medications , even at the risk of causing blockages. The privacy of a toilet offers a clandestine means of removing embarrassing evidence by flushing such things as drug paraphernalia , pregnancy test kits, combined oral contraceptive pill dispensers, and

189-420: A $ 10,000 fine for the utility and a required evaluation for how the utility managed sewage blockages within its system. Changes required of the utility to improve the sewage system could cost up to $ 40 million by 2012. In total, the utility expects to spend $ 250 million by 2025 to improve its sewer system and prevent sewage spills into Fountain Creek. According to The Gazette in 2007, untreated sewage spills into

252-493: A broader term, because it refers to any water after it has been used in a variety of applications. Thus it may also refer to " industrial wastewater ", agricultural wastewater and other flows that are not related to household activities. Blackwater in a sanitation context denotes wastewater from toilets which likely contains pathogens that may spread by the fecal–oral route . Blackwater can contain feces , urine , water and toilet paper from flush toilets . Blackwater

315-478: A building's plumbing either into a sewer , which will carry it elsewhere, or into an onsite sewage facility . Collection of sewage from several households together usually takes places in either sanitary sewers or combined sewers . The former is designed to exclude stormwater flows whereas the latter is designed to also take stormwater. The production of sewage generally corresponds to the water consumption. A range of factors influence water consumption and hence

378-670: A concentration), 50 g/person/d for BOD (300 mg/L), 100 g/person/d for COD (600 mg/L), 8 g/person/d for total nitrogen (45 mg/L), 4.5 g/person/d for ammonia-N (25 mg/L) and 1.0 g/person/d for total phosphorus (7 mg/L). The typical ranges for these values are: 120–220 g/person/d for total solids (or 700–1350 mg/L when expressed as a concentration), 40–60 g/person/d for BOD (250–400 mg/L), 80–120 g/person/d for COD (450–800 mg/L), 6–10 g/person/d for total nitrogen (35–60 mg/L), 3.5–6 g/person/d for ammonia-N (20–35 mg/L) and 0.7–2.5 g/person/d for total phosphorus (4–15 mg/L). For high income countries,

441-411: A country, there may be large variations from one region to another due to the various factors that determine the water consumption as listed above. A flowrate value of 200 liters of sewage per person per day is often used as an estimate in high income countries , and is used for example in the design of sewage treatment plants. For comparison, typical sewage flowrates from urban residential sources in

504-748: A flowrate of 190 L per person per day. A United States source published in 1972 estimated that the daily dry weight of solid wastes per capita in sewage is estimated as 20.5 g (0.72 oz) in feces, 43.3 g (1.53 oz) of dissolved solids in urine, 20 g (0.71 oz) of toilet paper, 86.5 g (3.05 oz) of greywater solids, 30 g (1.1 oz) of food solids (if garbage disposal units are used), and varying amounts of dissolved minerals depending upon salinity of local water supplies, volume of water use per capita, and extent of water softener use. Sewage contains urine and feces. The mass of feces varies with dietary fiber intake. An average person produces 128 grams of wet feces per day, or

567-568: A form of final disposal or of treatment, or both. Land disposal alternatives require consideration of land availability, groundwater quality, and possible soil deterioration. Sewage may be discharged to an evaporation or infiltration basin . Groundwater recharge is used to reduce saltwater intrusion , or replenish aquifers used for agricultural irrigation . Treatment is usually required to sustain percolation capacity of infiltration basins, and more extensive treatment may be required for aquifers used as drinking water supplies. Before

630-592: A median dry mass of 29 g/person/day. The median urine generation rate is about 1.42 L/person/day, as was determined by a global literature review. The volume of domestic sewage produced per person (or " per capita ", abbreviated as "cap") varies with the water consumption in the respective locality. A range of factors influence water consumption and hence the sewage flowrates per person. These include: Water availability (the opposite of water scarcity ), water supply options, climate (warmer climates may lead to greater water consumption), community size, economic level of

693-453: A primary recreational activity on Fountain Creek. Note: catch and release fishing due to poor water quality. In 1999, 70 million gallons of raw sewage spilled into the creek at Colorado Springs during a flood. Due to a blockage, sewage backed up into houses and wastewater pipes in the sewer system were cracked. "That wiped out our whole wastewater system... We lost about 68 million gallons of wastewater – untreated sewage," said Steve Berry,

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756-461: A result of past disinfection . Sewage may contain microplastics such as polyethylene and polypropylene beads, or polyester and polyamide fragments from synthetic clothing and bedding fabrics abraded by wear and laundering, or from plastic packaging and plastic-coated paper products disintegrated by lift station pumps. Pharmaceuticals , endocrine disrupting compounds, and hormones may be excreted in urine or feces if not catabolized within

819-672: A spokesman for Colorado Springs Utilities. Between 1988 and 2003, there was a total of 74 million gallons of raw sewage that spilled into Fountain Creek. There were continued sewage spills in 2004. In 2005, there were more than 300,000 gallons of nonpotable water and sewage spills, which resulted in a fine of $ 130,000 to Colorado Springs Utilities by the Colorado Department of Health. Another 44,000 gallon raw sewage spill into Shooks Run and Fountain Creek on January 5, 2006, producing elevated levels of E. coli in Fountain Creek, resulted in

882-689: A treatment plant per day: One peak is at the beginning of the morning and another peak is at the beginning of the evening. With regards to water consumption, a design figure that can be regarded as "world average" is 35–90 L per person per day (data from 1992). The same publication listed the water consumption in China as 80 L per person per day, Africa as 15–35 L per person per day, Eastern Mediterranean in Europe as 40–85 L per person per day and Latin America and Caribbean as 70–190 L per person per day. Even inside

945-623: A variety of techniques. Traditional techniques involve filtering, staining, and examining samples under a microscope. Much more sensitive and specific testing can be accomplished with DNA sequencing , such as when looking for rare organisms, attempting eradication , testing specifically for drug-resistant strains, or discovering new species. Sequencing DNA from an environmental sample is known as metagenomics . Sewage has also been analyzed to determine relative rates of use of prescription and illegal drugs among municipal populations. General socioeconomic demographics may be inferred as well. Sewage

1008-439: Is a type of wastewater that is produced by a community of people. It is typically transported through a sewer system . Sewage consists of wastewater discharged from residences and from commercial, institutional and public facilities that exist in the locality. Sub-types of sewage are greywater (from sinks, bathtubs, showers, dishwashers, and clothes washers) and blackwater (the water used to flush toilets , combined with

1071-693: Is an order of magnitude estimate rather than an exact percentage because, aside from variation caused by dilution, solids may be defined differently depending upon the mechanism used to separate those solids from the liquid fraction. Sludges of settleable solids removed by settling or suspended solids removed by filtration may contain significant amounts of entrained water, while dried solid material remaining after evaporation eliminates most of that water but includes dissolved minerals not captured by filtration or gravitational separation. The suspended and dissolved solids include organic and inorganic matter plus microorganisms. About one-third of this solid matter

1134-418: Is commonly collected and transported in gravity sewers , either in a sanitary sewer or in a combined sewer . The latter also conveys urban runoff ( stormwater ) which means the sewage gets diluted during rain events. Infiltration is groundwater entering sewer pipes through defective pipes, connections, joints or manholes . Contaminated or saline groundwater may introduce additional pollutants to

1197-454: Is discharged into a water body (river, lakes, sea) or land, its relative impact will depend on the assimilative capacity of the water body or ecosystem . Water bodies have a self-purification capacity, so that the concentration of a pollutant may decrease along the distance from the discharge point. Furthermore, water bodies provide a dilution to the pollutants concentrations discharged, although it does not decrease their mass. In principle,

1260-403: Is discharged untreated, its nitrogen and phosphorus content can lead to pollution of lakes and reservoirs via a process called eutrophication . In raw sewage, nitrogen exists in the two forms of organic nitrogen or ammonia . The ammonia stems from the urea in urine . Urea is rapidly hydrolyzed and therefore not usually found in raw sewage. Total phosphorus is mostly present in sewage in

1323-519: Is distinguished from greywater , which comes from sinks, baths, washing machines, and other household appliances apart from toilets. Greywater results from washing food, clothing, dishes, as well as from showering or bathing. Greywater (or grey water, sullage, also spelled gray water in the United States) refers to domestic wastewater generated in households or office buildings from streams without fecal contamination, i.e., all streams except for

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1386-664: Is low, the strength of the sewage (or pollutant concentrations) is much higher than that in the United States where water use per person is high. Household income and diet also plays a role: For example, for the case of Brazil, it has been found that the higher the household income, the higher is the BOD load per person and the lower is the BOD concentration. Typical values for physical–chemical characteristics of raw sewage in developing countries have been published as follows: 180 g/person/d for total solids (or 1100 mg/L when expressed as

1449-698: Is suspended by turbulence , while the remainder is dissolved or colloidal . For the situation in the United States in the 1950s it was estimated that the waste contained in domestic sewage is about half organic and half inorganic . The organic matter in sewage can be classified in terms of form and size: Suspended (particulate) or dissolved (soluble). Secondly, it can be classified in terms of biodegradability : either inert or biodegradable. The organic matter in sewage consists of protein compounds (about 40%), carbohydrates (about 25–50%), oils and grease (about 10%) and urea , surfactants , phenols , pesticides and others (lower quantity). In order to quantify

1512-828: Is the Fountain Creek Eco-Fit Education Park, which is to be located in Colorado Springs, south of the El Pomar Youth Sports Park on 40 acres donated by the City of Colorado Springs in 2011. Connected to areas along the creek using webcam and other Internet technology, the Fountain Creek Eco-Fit Education Park, will provide a means for visitors to learn about the creek through hands-on and interactive play. Fly fisherman have begun to work together in 2019 to bring awareness to Fountain Creek. Through their continuous efforts, fishing has been brought forward as

1575-671: Is to be added at Clear Spring Ranch. The district's goals also include protecting open space. The district established relationships and partnerships with governmental agencies, organizations, universities, and the Fountain Creek Foundation—whose goals are to encourage and promote environmental and generational stewardship of the Fountain Creek—to meet the District's goals. Sewage Sewage (or domestic sewage , domestic wastewater , municipal wastewater )

1638-408: Is typically found in sewage. Pollutants may be toxic or non- biodegradable waste including pharmaceuticals , biocides , heavy metals , radionuclides , or thermal pollution . An industry may treat its wastewater and discharge it into the environment (or even use the treated wastewater for specific applications), or, in case it is located in the urban area, it may discharge the wastewater into

1701-402: Is usually near neutral, and can be in the range of 6.7–8.0. Sewage consists primarily of water and usually contains less than one part of solid matter per thousand parts of water. In other words, one can say that sewage is composed of around 99.9% pure water, and the remaining 0.1% are solids, which can be in the form of either dissolved solids or suspended solids . The thousand-to-one ratio

1764-1050: The Fontaine qui Bouille , is a tributary of the Arkansas River . The Fountain Creek Watershed—located in Teller , El Paso, and Pueblo counties—is 930 square miles (2,400 km ) in area. Its borders are Pikes Peak , the Palmer Divide and a minor divide east of Colorado Springs. Monument Creek , which originates on Rampart Range, is the main tributary. Other key tributaries are Sand Creek and Jimmy Camp Creek. Fountain Creek and its tributaries flow through Woodland Park , Green Mountain Falls , Palmer Lake , Monument , Manitou Springs , Colorado Springs , and Pueblo . Fountain Creek's elevation ranges from 14,115 to 4,640 feet (4,302 to 1,414 m) from Pikes Peak to where it meets

1827-473: The United States are estimated as follows: 365 L/person/day (for one person households), 288 L/person/day (two person households), 200 L/person/day (four person households), 189 L/person/day (six person households). This means the overall range for this example would be 189–365 L (42–80 imp gal; 50–96 US gal). Sewage can be monitored for both disease-causing and benign organisms with

1890-589: The anal area in the shower or bath. The overall appearance of sewage is as follows: The temperature tends to be slightly higher than in drinking water but is more stable than the ambient temperature. The color of fresh sewage is slightly grey, whereas older sewage (also called "septic sewage") is dark grey or black. The odor of fresh sewage is "oily" and relatively unpleasant, whereas older sewage has an unpleasant foul odor due to hydrogen sulfide gas and other decomposition by-products. Sewage can have high turbidity from suspended solids. The pH value of sewage

1953-493: The human waste that it flushes away). Sewage also contains soaps and detergents. Food waste may be present from dishwashing , and food quantities may be increased where garbage disposal units are used. In regions where toilet paper is used rather than bidets , that paper is also added to the sewage. Sewage contains macro-pollutants and micro-pollutants, and may also incorporate some municipal solid waste and pollutants from industrial wastewater . Sewage usually travels from

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2016-408: The "per person organic matter load" has been found to be approximately 60 gram of BOD per person per day. This is called the population equivalent (PE) and is also used as a comparison parameter to express the strength of industrial wastewater compared to sewage. Values for households in the United States have been published as follows, whereby the estimates are based on the assumption that 25% of

2079-734: The Arkansas River in Pueblo. With the significant elevation changes, there are diverse ecosystems and extreme temperature and precipitation variations. Within the watershed are regional and local parks, including the Fountain Creek Regional Park and Nature Center in Fountain and the Whitewater Kayak Park in Pueblo, and creekside trails that are used for jogging, hiking, bicycle riding, and viewing wildlife. A future project

2142-702: The Fountain Formation are considered to be of Late Pennsylvanian age, and are between 290 and 340 million years old. Fountain Creek Fountain Creek is a creek that originates in Woodland Park in Teller County and flows through El Paso County to its confluence with the Arkansas River near Pueblo in Pueblo County, Colorado . The 74.5-mile-long (119.9 km) creek, once known as

2205-577: The Fountain Formation, cropping out on a low hogback in Perry Park . Invertebrates include bryozoans , brachiopods , crinoids , echinoids , and gastropods . Plant fossils have been discovered in Garden Park north of Cañon City , including Lepidophloios laricinus , Sigillaria , Syringodendron sp., Lepidophyloides sp., Lepidostrobus sp., Lepidostrobophyllum sp., Calamites , Neuropterus sp., Cyclopteris sp., and Stigmaria ficoides . Rocks of

2268-430: The assimilative capacity of the water body. However, this needs to be analyzed very carefully, taking into account the quality of the water in the receiving body before it receives the discharge of sewage, the resulting water quality after the discharge and the impact on the intended water uses after discharge. There are also specific legal requirements in each country. Different countries have different regulations regarding

2331-414: The community, level of industrialization , metering of household consumption, water cost and water pressure. The production of sewage generally corresponds to the water consumption. However water used for landscape irrigation will not enter the sewer system, while groundwater and stormwater may enter the sewer system in addition to sewage. There are usually two peak flowrates of sewage arriving at

2394-456: The consumption of oxygen, which may then affect aquatic living organisms. The mass load of organic content is calculated as the sewage flowrate multiplied with the concentration of the organic matter in the sewage. Typical values for physical–chemical characteristics of raw sewage is provided further down below. Apart from organic matter, sewage also contains nutrients. The major nutrients of interest are nitrogen and phosphorus . If sewage

2457-843: The creation of the Fountain Creek Watershed Drainage, Flood Control, and Greenway District for long-term management, leadership, and funding. Fountain Creek Watershed Drainage, Flood Control, and Greenway District was created on April 30, 2009, under Senate Bill 09-141. Overseen by nine board members, the "District's primary goals are to create healthy and safe waterways and establish greater recreation and appreciation opportunities, all through regional collaboration." Its projects include wetland restoration, sediment removal, water quality improvements, flood attenuation, erosion management and aquatic and wildlife habitat management. An additional 6.5 miles (10.5 km) trail

2520-596: The creek an average of 10 times every year. Most of the sewage spills occurred before 2006, but there were still spills and penalties through 2011. The sewage spills polluted the Creek, which was of particular concern to downstream users, like the City of Pueblo. Tests between 2007 and 2009 by the U.S. Geological Survey (USGS) found levels of the E. coli bacterium above the safe limit in Ruxton Creek , Fountain Creek near Green Mountain Falls, and Fountain Creek near 8th Street. The E. coli levels were particularly high in

2583-538: The creek subject to sediment build-up, changes in flow, and vegetation changes. The Fountain Creek Vision Task Force was created in 2006 by the Pueblo and El Paso county commissioners to address water quality issues and promote recreation along the creek. The task force focuses on improving water quality for aquatic species and public health, ensuring a healthy wildlife habitat, resolving stormwater overflows, and investigating land use impacts. It recommended

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2646-563: The form of phosphates .They are either inorganic (polyphosphates and orthophosphates) and their main source is from detergents and other household chemical products. The other form is organic phosphorus, where the source is organic compounds to which the organic phosphorus is bound. Human feces in sewage may contain pathogens capable of transmitting diseases. The following four types of pathogens are found in sewage: In most practical cases, pathogenic organisms are not directly investigated in laboratory analyses. An easier way to assess

2709-1004: The form of cysts or oocysts) and helminths (in the form of eggs). In order to quantify the organic matter, indirect methods are commonly used: mainly the Biochemical Oxygen Demand (BOD) and the Chemical Oxygen Demand (COD). Management of sewage includes collection and transport for release into the environment, after a treatment level that is compatible with the local requirements for discharge into water bodies, onto soil or for reuse applications. Disposal options include dilution (self-purification of water bodies, making use of their assimilative capacity if possible), marine outfalls , land disposal and sewage farms . All disposal options may run risks of causing water pollution . Sewage (or domestic wastewater) consists of wastewater discharged from residences and from commercial, institutional and public facilities that exist in

2772-477: The formation typically dip steeply to the east. The formation was formed by the erosion of the Ancestral Rocky Mountains , and deposition by fluvial processes as alluvial fans . The characteristic predominant red color and the composition of the Fountain reflect that of the granites and gneisses from which it was eroded. Marine invertebrates have been discovered in a limestone and shale member of

2835-451: The higher the dilution capacity (ratio of volume or flow of the receiving water and volume or flow of sewage discharged), the lower will be the concentration of pollutants in the receiving water, and probably the lower will be the negative impacts. But if the water body already arrives very polluted at the point of discharge, the dilution will be of limited value. In several cases, a community may treat partially its sewage, and still count on

2898-490: The homes have kitchen waste-food grinders (sewage from such households contain more waste): 95 g/person/d for total suspended solids (503 mg/L concentration), 85 g/person/d for BOD (450 mg/L), 198 g/person/d for COD (1050 mg/L), 13.3 g/person/d for the sum of organic nitrogen and ammonia nitrogen (70.4 mg/L), 7.8 g/person/d for ammonia-N (41.2 mg/L) and 3.28 g/person/d for total phosphorus (17.3 mg/L). The concentration values given here are based on

2961-440: The human body. Some residential users tend to pour unwanted liquids like used cooking oil , lubricants , adhesives , paint , solvents , detergents , and disinfectants into their sewer connections. This behavior can result in problems for the treatment plant operation and is thus discouraged. The composition of sewage varies with climate, social and economic situation and population habits. In regions where water use

3024-400: The local area of larger communities. Sewage can be distinguished into "untreated sewage" (also called "raw sewage") and "treated sewage" (also called "effluent" from a sewage treatment plant ). The term "sewage" is nowadays often used interchangeably with "wastewater" – implying "municipal wastewater" – in many textbooks, policy documents and the literature. To be precise, wastewater is

3087-473: The locality. Sewage is a mixture of water (from the community's water supply ), human excreta ( feces and urine ), used water from bathrooms , food preparation wastes, laundry wastewater, and other waste products of normal living. Sewage from municipalities contains wastewater from commercial activities and institutions, e.g. wastewater discharged from restaurants , laundries , hospitals , schools , prisons , offices , stores and establishments serving

3150-435: The organic matter content, it is common to use "indirect methods" which are based on the consumption of oxygen to oxidize the organic matter: mainly the Biochemical Oxygen Demand (BOD) and the Chemical Oxygen Demand (COD). These indirect methods are associated with the major impact of the discharge of organic matter into water bodies: the organic matter will be food for microorganisms, whose population will grow, and lead to

3213-458: The packaging for those devices. There may be reluctance to retrieve items like children's toys or toothbrushes which accidentally fall into toilets, and items of clothing may be found in sewage from prisons or other locations where occupants may be careless. Trash and garbage in streets may be carried to combined sewers by stormwater runoff. Sewage contains environmental persistent pharmaceutical pollutants . Trihalomethanes can also be present as

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3276-434: The presence of fecal contamination is by assessing the most probable numbers of fecal coliforms (called thermotolerant coliforms), especially Escherichia coli . Escherichia coli are intestinal bacteria excreted by all warm blooded animals, including human beings, and thus tracking their presence in sewage is easy, because of their substantially high concentrations (around 10 to 100 million per 100 mL). The ability of

3339-460: The public sewerage system. In the latter case, industrial wastewater may receive pre-treatment at the factories to reduce the pollutant load . Mixing industrial wastewater with sewage does nothing to reduce the mass of pollutants to be treated, but the volume of sewage lowers the concentration of pollutants unique to industrial wastewater, and the volume of industrial wastewater lowers the concentration of pollutants unique to sewage. When wastewater

3402-498: The sanitary collection system". The "direct inflows" can result in peak sewage flowrates similar to combined sewers during wet weather events. Sewage from communities with industrial facilities may include some industrial wastewater , generated by industrial processes such as the production or manufacture of goods. Volumes of industrial wastewater vary widely with the type of industry. Industrial wastewater may contain very different pollutants at much higher concentrations than what

3465-402: The sewage flowrates per person. These include: Water availability (the opposite of water scarcity ), water supply options, climate (warmer climates may lead to greater water consumption), community size, economic level of the community, level of industrialization , metering of household consumption, water cost and water pressure. The main parameters in sewage that are measured to assess

3528-404: The sewage strength or quality as well as treatment options include: solids, indicators of organic matter, nitrogen, phosphorus, and indicators of fecal contamination. These can be considered to be the main macro-pollutants in sewage. Sewage contains pathogens which stem from fecal matter . The following four types of pathogens are found in sewage: pathogenic bacteria , viruses , protozoa (in

3591-404: The sewage. The amount of such infiltrated water depends on several parameters, such as the length of the collection network, pipeline diameters, drainage area, soil type, water table depth, topography and number of connections per unit area. Infiltration is increased by poor construction procedures, and tends to increase with the age of the sewer. The amount of infiltration varies with the depth of

3654-582: The sewer in comparison to the local groundwater table . Older sewer systems that are in need of rehabilitation may also exfiltrate sewage into groundwater from the leaking sewer joints and service connections. This can lead to groundwater pollution . Combined sewers are designed to transport sewage and stormwater together. This means that sewage becomes diluted during rain events. There are other types of inflow that also dilute sewage, e.g. "water discharged from cellar and foundation drains, cooling-water discharges, and any direct stormwater runoff connections to

3717-563: The specifications of the quality of the sewage being discharged and the quality to be maintained in the receiving water body. The combination of treatment and disposal must comply with existing local regulations. The assimilative capacity depends – among several factors – on the ability of the receiving water to sustain dissolved oxygen concentrations necessary to support organisms catabolizing organic waste. For example, fish may die if dissolved oxygen levels are depressed below 5 mg/L. Application of sewage to land can be considered as

3780-512: The summer. Using microbial source tracking (MST) and DNA tracking, birds were identified and validated via water quality testing as the source of summer increases in E. coli . Colorado Springs Utilities, after almost ten years, had its compliance order with the state's Water Quality Control Division closed in 2013. The utility spent more than $ 170 million on improvements to the sewage system and $ 450,000 in penalties regarding sewage spills into Fountain Creek and its tributaries. The changes to

3843-531: The wastewater collection system included creation of detention ponds to divert overflow for treatment, a rapid response trailer to manage overflow problems, 80 miles (130 km) of large-diameter pipes, creek crossing projects, and more than 1,200 manhole covers. In 2014, a $ 145 bonding plan that would have included a regional stormwater project was voted down. It would have created a partnership with El Paso County, Green Mountain Falls, Manitou Springs, and Fountain to implement flood control projects. Fountain Creek

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3906-430: The wastewater from toilets. Sources of greywater include sinks , showers , baths , washing machines or dishwashers . As greywater contains fewer pathogens than blackwater , it is generally safer to handle and easier to treat and reuse onsite for toilet flushing , landscape or crop irrigation , and other non- potable uses. Greywater may still have some pathogen content from laundering soiled clothing or cleaning

3969-459: Was identified by the State of Colorado as "impaired" due to high levels of selenium, picked up from the soil by ground and surface water, and E. coli in parts of the watershed. E. coli exceeds safe levels due to raw sewage spills, wildlife, livestock, stormwater overflows, and farm and ranch runoff. The variability of water flow, such as through floods, sewage spills, and groundwater runoff, have made

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