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NOTICE: SIGNALT Calculations are currently running through final testing and may be inaccurate until completed.

Katherine River, d/s sewage operation EE250696DA06

Source	Department of Environment and Natural Resources (Daly River)
Latest Sample Date	01-01-1996
Taxa count ORDER	9
Taxa count FAMILY	24
Taxa count ALT	53
Mayflies present?	51
	ORDER	FAMILY	ALT
SIGNAL	4.3	4.2	1.9
Weighted SIGNAL	4.8	4.3	4.2

Waterbug Land Use

	Category	ALUM Categories	Percent of upstream catchment	Area
	Minimal Use	1.3.0 Other minimal use, 1.3.3 Residual native cover, 2.1.0 Grazing native vegetation	94.74%	5,909,326,103m²
	Residential And Infrastructure	5.7.2 Roads, 5.7.3 Railways	2.30%	143,513,991m²
	Pastoral Farming	3.2.5 Sown grasses, 4.2.3 Irrigated legume/grass mixtures	1.77%	110,510,774m²
	Waste Management	5.9.1 Effluent pond	0.39%	24,252,364m²
	Mining	5.8.2 Quarries	0.37%	23,252,267m²
	Unknown	5.2.8 Abandoned intensive animal production, 5.8.4 Extractive industry not in use	0.24%	14,751,438m²
	Water	6.3.1 River - conservation, 6.4.3 Stormwater	0.12%	7,250,707m²
	Intensive Pastoral Farming	5.2.7 Saleyards/stockyards	0.07%	4,500,439m²
Show minor land uses 7
				62,373,581m²

Waterbug sample history

Sampled on 1 January 1996

Taxa	Abundance	SIGNALT Grade
Bivalvia KP	3	3
Corbiculina sp.(Unident.) KP020199	3
Oligochaeta LO	14	2
Oligochaeta (Unident.) LO999999	14
Acarina MM	6	6
Hydrodroma sp.(Unident.) MM070199	2

Monatractides sp.(Unident.) MM100199	4

Unknown OT	19
Caridina gracilirostris OT010302	6

Caridina serratirostris OT010305	10

Macrobrachium sp.(Unident.) OT020199	3

Coleoptera QC	8	5
Hydrovatus ovalis QC090307	4

Batrachomatus wingi QC092602	3

Hydrophilidae (Unident.)(Larva) QC11999I	1

Diptera QD	93	3
Ceratopogoninae (Unident.) QD0999I1	14

Simuliidae (Unident.) QD109999	1

Tabanidae (Unident.) QD239999	1
Coelopynia sp.(Unident.) QDAE0299	1
Djalmabatista sp.(Unident.) QDAE0699	3
Procladius sp.(Unident.) QDAE0899	1
Paramerina sp.(Unident.) QDAE1299	1
Thienemannimyia sp.(Unident.) QDAE1499	4
Nilotanypus sp.(Unident.) QDAE1699	6
Larsia sp.(Unident.) QDAE1799	1
?Ablabesmyia (2 segs) QDAE99Q1	1
Nanocladius sp.(Unident.) QDAF0499	5
Cricotopus sp.(Unident.) QDAF1599	1
Stempellinella sp.(Unident.) QDAH0199	2
Cladotanytarsus sp.(Unident.) QDAH0399	1
Tanytarsus micksmithi QDAH04MS	1
Tanytarsus sp. 1 QDAH04T1	8
Tanytarsus sp. 4 QDAH04T4	5
Tanytarsus sp. 5 QDAH04T5	2
Tanytarsus sp. 8 QDAH04T8	4
Paratanytarsus sp.(Unident.) QDAH0699	6
Rheotanytarsus sp.(Unident.) QDAH0799	1
Xenochironomus sp.(Unident.) QDAI0599	1
Polypedilum sp.(Unident.) QDAI0899	4
Polypedilum D1 QDAI08D1	2
Harnischia sp.(Unident.) QDAI2399	3
Parachironomus D1 QDAI25D1	4
?Paratanytarsus QDAJ99Q2	1
Unk genus ? (Cranston) QDAJ99Q5	1
Chironomidae (Unident.)(Larva) QDAZ9999	1
Chironomidae (Unident.) (Pupa) QDAZ999I	6
Ephemeroptera QE	51	9
Pseudocloeon sp.(Unident.) QE020599	16
Tasmanocoenis sp.(Unident.) QE080199	6
Wundacaenis dostini QE080202	29
Odonata QO	27	3
Antipodogomphus sp.(Unident.) QO130199	1
Austrogomphus sp.(Unident.) QO130499	10
Zygoptera (Unident.) QO999997	4
Epiproctophora (Unident.) QO999998	12
Trichoptera QT	21	8
Hellyethira sp.(Unident.) QT030499	1
Orthotrichia sp.(Unident.) QT030999	9
Cheumatopsyche sp.(Unident.) QT060599	1
Oecetis sp.(Unident.) QT250799	3
Triaenodes sp.(Unident.) QT251099	7

SIGNALT	4.3
	ORDER
Weighted SIGNALT	4.5