Water quality index formula
[DOCX File]Water Quality Index (WQI)
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Disease-causing bacteria, viruses and protozoans may be present in water that has elevated levels of E. coli. Levels of E. coli can increase during flooding. E. coli is measured in number of colony forming units. The EPA water quality standard for E. coli bacteria is 394 colony-forming units per 100 mL.
[DOCX File]Introduction
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, consists of nine tests to determine water quality. These nine tests are: temperature, pH, turbidity, total solids, dissolved oxygen, biochemical oxygen demand, phosphates, nitrate, and fecal coliform. A table (or graph) for each of the nine tests indicates the water quality value (or …
[DOC File]Activity 2.3.11 Calculating Property Drainage Answer Key
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Activity 2.3.11 Calculating Property Drainage Answer Key Introduction. When a property is developed, it is important to understand that changes to watershed characteristics (i.e., land use, slope, soil type, vegetative cover) will change the amount of storm water runoff from the site.
TITLE 35: ENVIRONMENTAL PROTECTION
determining a water quality index value for the basin. segments. This process requires the averaging of SSta values. for each segment according to the following formula: WQI = (S + S + S + . . . + S N)/N. Where WQI = segment water quality index value = average of station S values for the. segment, and. N = Number of stations in the segment @R+R
[DOCX File]Operations & Maintenance Manual (O&M Manual) Template
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Instructions: Provide full identifying information for the automated system, application, or situation for which the O&M Manual applies, including as applicable, Also identify the type(s) of computer operation involved (e.g., desktop, mainframe, client/server, Web-based, online and/or batch transaction processing and/or decision support).
[DOCX File]5
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The Community Loss Index was developed by Courtemanch and Davies (1987) and compares the diversity of the collection site with the expected or measured diversity in a reference site that has excellent water quality and habitat.
[DOC File]Each of the ten MassDEP Stormwater Management Policy ...
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VWQ = Required Water Quality Volume (in cubic feet) DWQ = Water Quality Depth: one-inch for discharges within a Zone II or Interim Wellhead Protection Area, to or near another critical area, runoff from a LUHPPL, or exfiltration to soils with infiltration rate greater than 2.4 inches/hour or greater; ½-inch for discharges near or to other areas.
[DOC File]Stormwater Treatment Design Challenge
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Calculate the Biotic Index Score using the following formula: Table 2.14. Index of Biotic Integrity and Water Quality. Index of Biotic Integrity Water Quality (circle one) 32 - 36 Excellent 23 - 31 Good 15 - 22 Fair < 15 Poor What is the water quality of your stream segment, as determined by the Index …
[DOC File]Student Activity 8 D: Macroinvertebrate Metric Calculation ...
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Formula = (total points from study site / total points from reference site) X 100% . Results of comparison to reference stream points. reference stream =100%. site 1= % site 2=% site 3=% site 4=% Step 6. Draw conclusions about the benthic community and water quality.
[DOC File]'Water Quality Survey' Lesson Plan
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describe a watershed and discuss how it affects water quality. identify causes of changes and pollution in the water of a stream. accurately follow directions and complete water testing. collect aquatic insects and identify them using the chart and pictures and come up with an index value. analyze differences in the water quality of a stream.
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