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Department of Water and Environmental Regulation HYSITREP V133 Output 13/11/2025 Page 1
HYSITREP - Site Summary Report
615062 - Avon River - Northam Weir
SITE DESCRIPTION
Site: 615062 Northam Weir
Site Name: Avon River - Northam Weir
Infrastructure commenced: 1/09/1913 Ceased:
Grid Ref: Zone: 50
Easting: 468890.994 Northing: 6498611.458 Grid Datum: MGA2020 Map Grid of Australia 2020
Latitude: -31.647292433 31°38'50.3"S Longitude: 116.671899124 116°40'18.8"E Lat/Long Datum: GDA2020 Geocentric Datum of Australia 2020
Comment:
STATION DESCRIPTION
Control description:
Max Gauged Stage: 11.321
Max Gauge Date: 26/07/1983
D'stream from Dam: False
Catchment Area: 6717.350
RATING TABLES
Var Var Start Start
From To Date Time Site Table
10.00 STAGE (m) 140 Discharge (m³/s) 01/01/1977 00:00 615062 7
24.00 Water Temp situ(°C) 1006 COND. COMP. FACTOR 01/01/1900 00:01 TEMPFACT 1
1005.00 CONDUCT. COMP.(mS/m) 1001 TDS - (mg/l) 01/01/1900 00:01 SWGEN 1
1008.00 CHLORIDE (mg/l) 1001 TDS - (mg/l) 01/01/1900 00:01 SWGEN 1
TIME-BASED TABLES
Var Interp Extend Back Extend Fwrd Date Value Qual
101.00 Stage - AHD (m) No Yes Yes 01/01/1977 00:00 135.88400 2
102.00 Stage - CTF (m) No Yes Yes 01/01/1977 00:00 9.99400 1
103.00 STAGE - Telemetry(m) No Yes Yes 01/01/2006 00:00 0.00000 10
998.00 Catch. Area (km²) No Yes Yes 01/09/1913 00:00 6717.35000 10
998.00 Catch. Area (km²) No Yes Yes 01/06/2011 00:00 6717.35000 10
GAUGINGS
51 gaugings between 20/06/1977 and 16/02/2017
BENCHMARKS
Date Bench RGLD Text
01/09/1913 1 149.666
01/09/1913 2 13.782
14/12/1999 4 149.912
14/12/1999 5 14.028
CROSS SECTIONS
Type Section Date Run SectNo
IN Inlets 0 26/04/1977 0 000001
OT Other 0 30/03/1977 0 000002
XS Control 1 13/05/1991 1 000003
XS Control 1 12/02/1992 1 000004
OT Other 0 27/04/1977 0 000005
XS Control 0 30/03/1977 0 000006
XS Control 0 13/03/2009 0 000007
XS Control 0 19/09/2014 0 000008
PERIOD OF RECORD (TS (A) ARCHIVE)
Variable Start Date End Date
10.00 STAGE (m) 01/01/1977 12/11/2025
10.13 STAGE (m) S type chart 10/10/1988 16/01/1989
10.31 STAGE (m) Provisional 08/01/2012 08/01/2012
24.00 Water Temp situ(°C) 28/04/1995 26/06/2022
80.00 Cond Comp (µs/cm) 28/04/1995 26/06/2022
86.14 Cond uncomp in µS/cm Preserved 28/04/1995 19/09/2014
Department of Water and Environmental Regulation HYSITREP V133 Output 13/11/2025 Page 2
HYSITREP - Site Summary Report
615062 - Avon River - Northam Weir
PERIOD OF RECORD (DISCRETE (GW) ARCHIVE) (no data found)