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<br />actually salvages and appropriates waters that would otherwise
<br />go to waste is entitled to the use of such waters. Salvaged water
<br />is already in the area and is saved and restored to the usable
<br />supply within the area by artificial means. (Hutchins, The
<br />California L3W of \Vater Rights, p. 383.385, 1956.)
<br />SEEPAGE - The slow movement (oozing) of water into or out
<br />of the ground through either saturated or unsaturated materials.
<br />Mo\'ement of water to the water table is called influent .seepage,
<br />while discharge of water away from the water table IS called
<br />effluent seepage. Seepage through unsaturated material is con.
<br />trolled by the laws of soil moisture movement while seepage
<br />through, saturated material moves according to the laws of
<br />percolation.
<br />SOIL MOISTURE. Pellicular water in the SQi.1 'lOne. It i~
<br />divided into ,~vailable alld unavailable moisture. the fonner being
<br />water easily abstracted by roots of plants. while the latter is
<br />water held so firmly by adhesion and orher forces that it cannot
<br />usually be absorbed by plants rapidly enough ro produce growth.
<br />(ASCE Glossa')'. p, 145, 1949,)
<br />STREAM, EFFLUENT - A stream or stretch of Stream which
<br />receives water from ground water in the zone of saturation. The
<br />water surface of such a stream stands al a lower level than the
<br />water table or piezometric surface of lhe ground-water body
<br />from which It receives its water. (ASCE Glossary, p. 219, 1949.)
<br />TRANSPIRATION - Transpiration is the process by which
<br />water vapor is lost to the atmosphere from living plants. CRobin.
<br />son. T.\V., Encyclopedia of BioI. Sci., 1961.)
<br />
<br />COMMON CONVERSION FACTORS
<br />
<br />VOLUME
<br />
<br />Acre FOOl = 43,560 Cubic Feet
<br />Acre Foot = 325,851 Gallons
<br />Acre Inch = 3,630 Cubic Feet
<br />Million Gallons = 3.07 Acre Feet
<br />Cubic Foot = i.48 Gallons
<br />Million Gallons = 133,681 Cubic Feet
<br />
<br />FLOW RATE
<br />
<br />50 Mmer's Inches = 1 Cubic Foot Per Second in Idaho, Kan-
<br />sas, Nebraska, New Mexico, North Dakota, Northern Califor-
<br />nia, \Vashington and Utah.
<br />40 Miner's Inches = I Cubic Fuot Per Second in Arizona.
<br />Southern California, Montana and Oregon.
<br />38.4 Miner's Inches = I Cubic Foot Per Second in Colorado.
<br />I Cubic Foot Per Second = 449 Gallons Per Minute
<br />I Cubic Foot Per Second 646.317 Gallons Per Day
<br />l Cubic Foot Per Second = 1 Acre Inch Per Hour (Approxi-
<br />mately)
<br />I Cubic Foot Per Second = 0.99 Acre-Inches Per Hour
<br />I Cubic Foot Per Second :::::- 1.98 Acre-Feet Per Day
<br />1 Million G;dlons Per Day = 1.55 Cubic Feet Per Second
<br />1 Cubic Foot Per Second = 724 Acre-Feet Per Year
<br />
<br />WEIGHT
<br />
<br />Gallon of Water = 8.33 Pounds
<br />Cubic Foot of \Valer :::: 62.4 Pounds
<br />
<br />14
<br />
<br />SOUTHEASTERN COLORADO W,\TER
<br />CONSERVANCY DISTRICT
<br />
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<br />.7.)
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<br />
<br />SUPPLEMENT TO BROCHURE NO, 4
<br />ADDITION,\L WATER RESOURCES TERMS
<br />
<br />ACTIVE STORAGE CAPACITY - The. total amount of teser-
<br />\'oir capacity "v"il"ble fur sea~onal or cyclic water stor8.ge.
<br />
<br />AFTERBA Y RESERVOIR - A reser\'oir downstre8.m from <J
<br />m"in reservoir dnd used for reregulatlon of peak flows from a
<br />hydroelectric pm....er plant, altlwugh It ma~' sen'e other purposes
<br />~uch as recre8.tion.
<br />
<br />APPLIED WATER (IRRIGATION) , Wate, m,d, ,,',il,ble
<br />for crop use. It does not include direct precipicarion nor convey-
<br />ence losses before reaching the edge of the field.
<br />
<br />APPLIED \VATER REQUIREMENT The amount of waler
<br />required to be delivered to a farmer's head gate for a crop in a
<br />given period of time. It does not include direct preCipitatIon.
<br />
<br />ARABLE LANDS - Lands capable of being culti\'ated and
<br />suitable for the production of crops. Land which, in adequate
<br />umts and when properly provided with the essential improve.
<br />ments of le....eling, drainage, buildings, Ifflgation facilities and
<br />the like, will have a producli,.e capacity, under sustained irri-
<br />gation agriculture, sufficient to: meet 811 production expenses,
<br />including a reasonable return on invesunent; repay reasonable
<br />irrigation and lmpfO\'ement costs; and pro\'ide a satisfactory
<br />level of living for the farm family.
<br />ARTESIAN AQUIFER - An aquifer in which the water is
<br />under suffiCient pressure to cause it to rise above the bottom
<br />of the confining bed if opportunity to do so were prm'ided.
<br />
<br />ARTIFICIAL RECHARGE - The addition of water to the
<br />ground water reservoir by activities of man, such as irrigation or
<br />induced infiltration from streams, wells, or spreading basins.
<br />
<br />BASE FLOW . That portion of runoff not resulting from di-
<br />rect runoff of precipitation, It may corne from ground water
<br />effluent, or delayed runoff from storage in lakes. swamps, gla-
<br />ciers, snow, etc.
<br />
<br />BASIN ACOUNT - A development Fund authorized by the
<br />Congress 10 be managed <lnd operated by the Secretary of Interior
<br />for the development, operation. and maintenance of water re-
<br />sources in a specified river basin region or project.
<br />BENEFIT-COST RATIO - The arithmetic proportion of esti-
<br />mated a\'erage annual benefit~ to averaRe annual costs. in $I) far
<br />as the factors ca.n be expres~ed in monetary terms, it is a measure
<br />of the degree of tangible economic justification of a project.
<br />BRACKISH WATEH - Water containing: dissolved minerals in
<br />excess of that passing drinking water standards, but less than
<br />in sea water.
<br />
<br />CLOSED BASIN - A basin is considered closed With respect
<br />10 surfa~e flow if its topography prevents the occurrence of visi-
<br />ble outflow. It is closed hydrologically if neither surface nor
<br />underground outflow can occur.
<br />CONJUNCTIVE USE (GROUNDWATER) . The integ,,,,d
<br />use o~ su~face and subsurhlce water supplies, J!ormally in\'oll'in.-::
<br />~tor.;IXc of surplll~ \V,lTl~rs during wct periods fur 11:->C d\lring dr~'
<br />pcnods.
<br />
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