Index

301(h) (see Legislative and regulatory history) 7-day, 10-year flow (7Q10) (see Statistics, streamflow) Accounting unit, definition of, (see Hydrologic Unit Code)

Activated sludge, 25, 26, 39, 44, 155, 369, 582 Advanced primary treatment, 42, 43, 57

effluent characteristics of, 76-78 Advanced secondary treatment, 42, 45, 57, 298, 361, 369, 372, 374, 376-377, 379, 384, 385, 386 effluent characteristics of, 76-78 Advanced treatment (AT), 182-184, 452, 454, 455, 582-584, 598 effluent characteristics of, 76-78 Advanced wastewater treatment (AWT), 42, 45, 57, 59, 60, 64, 70, 97, 99, 154, 155, 273, 286, 453, 454, 598 Advisory, fish consumption, 248, 249, 281, 358, 389

Aerobic, 24, 25, 43, 598 Algae (see also Phytoplankton), 2, 6, 44, 189, 302, 315

blooms of, 222, 249, 286, 290, 298, 382, 383 blue-green, 294 Microcystis aeruginosa, 294 nuisance blooms of, 380 respiration of, 6, 24, 43, 46, 106, 271 Albany, New York, 182, 223, 228 Allegheny River, 345, 346 American Heritage River, 308, 392, 411 Ammonia (NH3-N):

degradation, of water quality, 334 effluent load, long term trends, 374 nitrification, in natural waters, and, 24, 26, 43,

46, 116, 118 nitrification, in biological waste treatment, 45,

64, 376, 385 nitrogenous BOD (NBOD), as component of, 48

improvements, in water quality quality of, 155, 183, 210, 238, 248, 266, 269, 280, 354, 392 removal, wastewater of, 279, 298, 339, 369,

376, 384, 390 simulated distribution of, with water quality model, 271, 273, 384 unionized, 369, 376, 383 Anadromous, fish, 204, 209, 221, 222, 275, 324 Anaerobic, 25, 598

Anoxic, 262, 384

Appomattox River, 312, 316, 318, 319 Aqueducts (see Water supply) Ardern, E. and W.T. Lockett, 25 Arkansas-White, Hydrologic Region 11

dissolved oxygen, before and after CWA, 164, 171

Arthur Kill, 184, 213, 228, 235, 246, 247 ASIWPCA (see Association of State and Interstate Water Pollution Control Administrators) Assimilative capacity, 263, 316, 335, 367, 368, 405

Association of State and Interstate Water Pollution Control Administrators (ASIWPCA), 4, 182, 450, 451 AT (see Advanced treatment) Atlanta, Georgia, 19, 280, 327, 329-342 Atlanta Regional Commission (ARC), 327, 333,

335, 337-339 Atmospheric:

deposition, of heavy metals and organic chemicals, 75, 280, 389 reaeration, of dissolved oxygen (see Dissolved oxygen)

Authority, for water pollution control: federal government, 5, 28, 30, 33, 34 Clean Water Act of 1972, after, 27, 189 Clean Water Act of 1972, before, 27, 96, 189 local government, 19, 335 state government, 27, 28, 33, 96, 316, 372, 373, 405

Autotrophs, 106

AWT (see Advanced waste treatment)

Bacteria, 2, 44, 249 anaerobic, 25 autotrophic, 6, 24, 43 coliform, 189, 290, 301 fecal, 37, 38, 76, 238, 300, 369, 370, 372, 379,

383, 391, 392 total, 243, 244, 301, 368 combined sewers, as source of, 206, 222, 237,

242, 300, 369 combined sewers, effluent characteristics of, 73-74

degradation, of ambient water quality, from water pollution, 205, 262, 290, 334, 345, 350, 358, 368, 370, 376, 404, 408

Bacteria (continued):

decomposition, of organic matter and, 24, 25,

43, 46, 106, 116 improvement, of ambient water quality, from water pollution control, 237, 243, 248, 249, 273, 279, 280, 300, 341, 369, 372, 379, 392 model, water quality of, 383 nitrifying, 6, 24, 43, 46, 118 public health, and risk of exposure to, 368, 372 secondary treatment, effluent characteristics,

April, 1973 definition of, 36 standards, water quality, for coliform bacteria, 37, 38, 206, 222, 243, 300, 351, 369, 391 primary contact, 243, 300 secondary contact, 298, 300 urban storm water, effluent characteristics, 73-75

wastewater, as source of, 25, 44, 262, 279, 300

Backwater, pools, 347, 363, 383, 389, 392 Beaches, recreational, 23, 225, 300, 301 closure of: development, 260

protection of public health, 73, 222, 242, 243, 245

Enhanced Beach Protection Program, New York

City, 245 re-opened, 243, 248 Benefits:

ecological, 392

economic, 177, 183, 249, 280, 411 environmental, 36, 177 natural resources of, 28 recreational, 280, 411 spatial scale of, 9, 119, 154 water pollution, control of, 4, 9, 28, 38, 194, 346

water quality, of Clean Water Act, 194, 270,

271, 286, 294, 321, 383-384 water quality, of secondary treatment, 9, 39, 183 water resource users, 12 Best management practices (BMP), 75 Best practicable treatment (BPT), 32, 33, 38 minimum level, of waste treatment, as, 33 Big Sioux River, 159, 162

Lower, 143, 159, 162 Bioaccumulation, of toxic organic chemicals, 392, 411

biota, benthic, 280 birds, fish-eating, 246, 247, 388 fish, 222, 246, 280, 358, 388, 390, 408 mammals, fish-eating, 388 Biochemical oxygen demand (BOD): domestic sewage, decomposition of, 26 effect of wastewater discharges, on dissolved oxygen of, 47, 116 incubation period, 26, 46, 47 indicator of wastewater strength as, 5, 26, 95 industrial wastewater, decomposition of, in, 26

Biochemical oxygen demand (BOD), water quality:

case study waterways, 334, 353 spatial distribution of, in hypothetical river, 116-118 trends, long-term:

case study waterways, 206-207, 238, 248, 266, 377

catalog units, (1961-1995), 143-144,

154-156, 159, 162 RF1 reaches, (1961-1995), 154-156, 159, 162

Biochemical oxygen demand (BOD), effluent characteristics, of: combined sewer overflows, 73 -74 industrial wastewater, 71 -73 municipal wastewater, 76-78 rural runoff, 73 -75

secondary treatment, April, 1973 definition of,

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