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Titolo:
Highway stormwater runoff in karst areas - preliminary results of baselinemonitoring and design of a treatment system for a sinkhole in Knoxville, Tennessee
Autore:
Stephenson, JB; Zhou, WF; Beck, BF; Green, TS;
Indirizzi:
PE LaMoreaux & Associates Inc, Oak Ridge, TN 37830 USA PE LaMoreaux & Associates Inc Oak Ridge TN USA 37830 Ridge, TN 37830 USA
Titolo Testata:
ENGINEERING GEOLOGY
fascicolo: 1-2, volume: 52, anno: 1999,
pagine: 51 - 59
SICI:
0013-7952(199903)52:1-2<51:HSRIKA>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Keywords:
highway storm water drainage; stormwater runoff treatment; groundwater contamination; karst; sinkholes;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
7
Recensione:
Indirizzi per estratti:
Indirizzo: Stephenson, JB PE LaMoreaux & Associates Inc, Oak Ridge, TN 37830 USA PE LaMoreaux & Associates Inc Oak Ridge TN USA 37830 0 USA
Citazione:
J.B. Stephenson et al., "Highway stormwater runoff in karst areas - preliminary results of baselinemonitoring and design of a treatment system for a sinkhole in Knoxville, Tennessee", ENG GEOL, 52(1-2), 1999, pp. 51-59

Abstract

Groundwater is vulnerable to contamination in karst areas where highway stormwater runoff may flow directly into karst aquifers with little or no natural attenuation and transport highway-derived contaminants rapidly from sinkholes to locations in the aquifer. The primary goal of this investigationis the development and evaluation of practical remedial measures for treating highway runoff draining into sinkholes. Field testing sites are locatedin Knoxville, TN, and Frederick, MD. This paper presents a summary of preliminary results of baseline monitoring in Knoxville. Quantitative dye tracing and hydrograph analyses have demonstrated that water draining into the I-40/I-640 sinkhole passes through a phreatic conduit and resurges at Holston Spring ca 128 m (420 ft) from the sinkhole. Stormwater quantity has been monitored continuously for more than 1.5 years, and runoff quality has beenmonitored during a storm event. For most of the contaminants analyzed, peak contaminant loading at Holston Spring lagged behind the peak at the sinkhole by approximately 1 hour. The movement of stormwater from other sinkholes in the drainage basin to Holston Spring is regulated by partial blockage of the conduit-dominated flow system. Urban development of the karst terrane in eastern Knoxville may be responsible for this observed phenomenon. A pilot-scale stormwater runoff treatment system has been designed using peat,sand, and rock to remove contaminants by sedimentation, filtration, and adsorption. (C) 1999 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 10:18:07