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<br />.
<br />
<br />on the hy~rology of the 126 acre tract.
<br />Data were obtained pertaininq to: (1)
<br />the changes in runoff quality during a
<br />storm; (2) yearly variation of runoff
<br />quality from a partially d~veloped wat-
<br />ershed; (3) the lack of change in
<br />quality of ground water in thp. surface
<br />aquifer; (4) the purification of urban
<br />runoff by routinq it over a natural
<br />vegetative system. The study confirmed
<br />that disturbing marshes or lakes causes
<br />8 significant increase in suspended
<br />solids and nutrient content in runoff,
<br />especially phosphates.
<br />
<br />.
<br />
<br />ANDERSON, P.W. and McCA.LL, J.E.
<br />1968: .Urbanisation's effect on sedi-
<br />ment yield in New Jersey". J. of Soil
<br />and Water Conservation, Vol.23(4);
<br />p142-144.
<br />
<br />Key words: sediment
<br />urbanisationi storm runoff;
<br />pollution; bacteria: organic
<br />pounds: suspended solids.
<br />
<br />yield;
<br />water
<br />com-
<br />
<br />Data on sediment content of New Jersey
<br />streams are summarised; they suggest
<br />that yields are proportional to the de-
<br />gree of urbanisation. The sparsely po-
<br />pulated pine barrens yield 10-40 tons
<br />per sq ml per year. The moderately
<br />heavily urbanised Delaware River area
<br />yields 25-100 tons generally, and up to
<br />500 tons near Philadelphia. The nor-
<br />thwestern area of New Jersey is hilly
<br />with steep slopes and rapid runoff~ but
<br />has a low degree of urbanisation: its
<br />sediment yields are 25-100 tons per sq
<br />ml per year, while yields in the Tren-
<br />ton - New York City area, which is very
<br />heavily urbanised and probably has
<br />about the sa~e topography and natural
<br />sediment yield as the northw~stern
<br />area, are several thousand tons.
<br />Bacteria and organic content of water
<br />are also much higher in urban streams.
<br />In the Delaware River near Trenton,
<br />5-25 percent of the suspended load is
<br />oxidisable. The u.s. Geological Sur-
<br />vey is studying the effects of urbani-
<br />sation on sediment in the Stony Brook
<br />basin, about 48 sq mls in area, l~ m1
<br />north of Trenton. The amount of sedi-
<br />ment for a given rate of runoff hos in-
<br />creased significantly with urbani sat ion
<br />of the area from 1956 to 1958.
<br />
<br />ANDREWS, W.H. et a1. 1973: -Modeling the
<br />total hydrologic-sociologic flow system
<br />of urban areas-. Report PRWG109-1,
<br />Utah Water Research Lab., logan~
<br />108pp. (NTIS PB-2J4 J18).
<br />
<br />Key woeds: computer models~
<br />control~ mathematical models.
<br />
<br />flood
<br />
<br />.
<br />
<br />The first phase is described of a
<br />larger study directed toward the devel-
<br />opment of a general technique for ana-
<br />lysing and solving urban metropolitan
<br />hydrologic problems through considera-
<br />tions of both the physical and social
<br />dimensions. This report is limited to
<br />the preliminary work of identification
<br />of social variables, the first steps in
<br />assigning mathematical values to them,
<br />and developing a mathematical format
<br />for these variables. In addition, the
<br />physical-hy~roloqic system is identi-
<br />fied for purposes of clarifying the
<br />
<br />elements in that system. The ultimat~
<br />objective of the entire stu~y is di-
<br />rected- toward discovering a th'?oretical
<br />and generally applicable mathematical
<br />model of both the physical and social
<br />dimension involved in metropolit~n flo-
<br />od iog problems.
<br />
<br />A.NGINO, E.E. et al. 1972: -Effects of ur-
<br />banisation on storm wat~r runoff quali-
<br />ty: a limited experim~nt, Naismith
<br />Ditch, Lawrence, Kansas-. Water Re-
<br />~ources Research, Vol.8(1)~ p135-l40.
<br />
<br />Key words:
<br />urbanisation:
<br />chemical oxygen
<br />oxygen demand:
<br />water pollution:
<br />cals.
<br />
<br />storm runoff:
<br />lov flow: snowmelt:
<br />demand: biochemical
<br />nitrates: ch10rides~
<br />miscellan~ous chemi-
<br />
<br />The extensive us~ of storm water runoff
<br />as an auxiliary source of water will
<br />probably be justified economically 1'n
<br />the near future, providing the water is
<br />of proper quality. Water so~ples were
<br />collected for dry weather periods, ra-
<br />instorms, and snowmelts and ev~luate~
<br />for pH, residue (total, volatile,
<br />filterable)~ chemical oxygen demand
<br />(COD), biochemical oxygen deman~ (BOD),
<br />N03, Cl and total alkalinity. ~10st
<br />chang~s in water qualJ:y are not so
<br />great as to he apparent by inspectinq
<br />the data. Statistical analysis is ne-
<br />cessary for testing the more subtle
<br />chemical relationships. Suspend~~ sol-
<br />ids concentrations during snowmelt and
<br />rainstorms do not differ; N03 is rela-
<br />tively high, COD averages 34 ppm (parts
<br />per million). Occasional pollutants
<br />include Cr+6 , 27 ppm, Br, 5 ppm, and
<br />Cl, 2150 ppm; Pb concentrations in
<br />suspended solids as high as 0.55 per-
<br />cent were found. The aeneral extent to
<br />which urban storm runoff contributes to
<br />pollution of the streams is yet to be
<br />completely determined.
<br />
<br />ANON.
<br />
<br />1968: -Basic data for urban hydrolo-
<br />gy study in Dallas, Texas, 1966-. U.S.
<br />Geol. Survey open-file report: 203?p.
<br />
<br />Key words: rainfall-runoff
<br />ships: data collection~
<br />data: hydrographs.
<br />
<br />Basic hydrologic data compiled for the
<br />study of urban hydroloqy in Dallas,
<br />Texas, include data from raingauges,
<br />stream gauges, and flood prOfile par-
<br />tial record stations. Hydrographs and
<br />mass curves are given for major storms
<br />at each station.
<br />
<br />relation-
<br />hyd rolog ic
<br />
<br />ANON.
<br />
<br />1969: .Comoilation of hydrologic
<br />data, Green Creek, Brazos River basin,
<br />Texas, 1967-. U.S. Geol. Survey
<br />open-file report: 34pp.
<br />
<br />Jl:ey words: data
<br />ra infall-runoff
<br />hydrologic data~ storm
<br />control; low flow:
<br />hydrographs.
<br />
<br />collectionJ
<br />relationshios ~
<br />runoff: flood
<br />peak discharge:
<br />
<br />Rainfall and runoff data were collected
<br />during the 1967 water year for the 46.1
<br />square mile area above the stream gaug-
<br />
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