Territory Stories

Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981

Details:

Title

Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981

Other title

Alligator Rivers Region - Regional Surface Water Quality Monitoring, Volumes 1,2,3 (Plus draft)

Creator

Northern Territory. Department of Transport and Works. Water Division, Environmental Section

Collection

E-Publications; E-Books; PublicationNT; Report ; 49/1983

Date

1983-04-01

Notes

At head of title: Water Division, Dept. of Transport &​ Works, Northern Territory. "April 1983".

Language

English

Subject

Water quality -- Northern Territory -- Alligator Rivers Region; Hydrology -- Northern Territory -- Alligator Rivers Region

Publisher name

Northern Territory Government

Place of publication

Darwin

Series

Report ; 49/1983

Format

3 volumes. ; 30 cm

File type

application/pdf

Use

Attribution International 4.0 (CC BY 4.0)

Copyright owner

Northern Territory Government

License

https://creativecommons.org/licenses/by/4.0

Related links

https://hdl.handle.net/10070/672725 [Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981 - WRD83049_v_1.pdf]; https://hdl.handle.net/10070/672727 [Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981 - WRD83049_v_2.pdf]; https://hdl.handle.net/10070/672729 [Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981 - WRD83049_v_3.pdf]

Parent handle

https://hdl.handle.net/10070/229664

Citation address

https://hdl.handle.net/10070/672725

Related items

https://hdl.handle.net/10070/672729; https://hdl.handle.net/10070/672727

Page content

Technical Report WRD83049 Viewed at 14:07:10 on 29/07/2010 Page 47 of 440. 46. TABLE 7.1 Cont'd I I FLOODPLAIN AREA R.S.P. 1228 1234 1231 \'ATER QUALITY SU"L'L".RY WEST PLAINS BILLABONG - This billabong on the western floodplains of the Magela contains water for 8-12 months of the year. Its turbidity and conductivity increase dramatically towards the end of the dry season. Sodium also increases in this cycle, possibly indicating some seawater infiltration. The infiltration is only likely to be via groundwater. HARLOW SWA.c'1P - This is a large backflow area on the eastern side of the Magela floodplains. It contains water at the sampling site 10-12 months of the year. Towards the end of the dry season its conductivity, turbidity and sodium rise appreciably with nutrient and carbon less so. Some turbidity increases are due to animal activity. J7 BILLABONG - This is adjacent to J7 Creek and 1-1ater lS present 7 9 monL~s of the year. The site is not on a direct channel and as such does not become regularly flushed. It is filled when J7 Creek floods and then becomes part of the channel of J7. As the site dries up during the year, we assue it is hydrologically isolated and similar to Gulungul Billabong with the slight eutrophic tendency. It also exhibits increases in concentration of suspended solids, conductivity and uranium towards the end of the dry season. I I I I I I I I I JABIRU AREA I I 376 GEORGETOWN BILLABONG - This is a permanent billabong on Georgetown Creek. It is classified by Walker and Tyler (1) as backflow billabong associated 1vith a perched water table. Although the billabong is per 1 manent, water level fluctuates widely between wet and dry season, and may be dry at the sampling site. Towards the end of the dry season the billabong becomes extremely turbid. It also exhibits high nutrient concentration, I with the possibility of eutrophic conditions being formed. The conductivitv however remains ouite low and constant. Some fluctuations in uranium concentration are observed which may be natural or attributable to work on the Ranger mine site. I I I I I


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