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2016-02-02 P&O Committee - Item 3 - Attachment 4 - Mary River Environmental Values and Water Quality Objectives
Mary River environmental values and water quality objectives
1-11
Water area/type Management Water quality objectives to protect aquatic ecosystem EV
(refer Plan intent (level of
WQ1381) protection)
Marine/estuarine Aquatic Protect or restore riparian areas. Refer section 3.1.2 – riparian area
riparian areas ecosystem – water quality objectives.
moderately
disturbed
FRESHWATERS
th th th
Area MF1 – Mary Aquatic Maintain existing water quality (20 , 50 and 80 percentiles),
River catchment ecosystem - high habitat, biota, flow and riparian areas.
freshwaters ecological value
(several locations) Note: there is insufficient information available to establish current
water quality for these waters. Refer to Appendix D in Queensland
Water Quality Guidelines for details on how to establish a minimum
th th th
water quality data set for deriving local 20 , 50 and 80
percentiles.
Lowland Aquatic turbidity: <50 NTU
freshwater ecosystem – suspended solids: <6 mg/L
moderately chlorophyll a: <5 µg/L
disturbed total nitrogen: <500 µg/L
oxidised N: <60 µg/L
ammonia N: <20 µg/L
organic N: <420 µg/L
total phosphorus: <50 µg/L
filterable reactive phosphorus (FRP): <20 µg/L
dissolved oxygen: 85% – 110% saturation
pH: 6.5 – 8.0
secchi depth: n/a
Lowland Aquatic As above but with modification for pH as follows:
freshwater - ecosystem –
wallum/tannin- moderately pH: 6.0 – 8.0
stained disturbed
Upland freshwater Aquatic turbidity: <25 NTU
ecosystem – suspended solids: <6 mg/L
moderately chlorophyll a: <2 µg/L
disturbed total nitrogen: <250 µg/L
oxidised N: <40 µg/L
ammonia N: <10 µg/L
organic N: <200 µg/L
total phosphorus: <30 µg/L
filterable reactive phosphorus (FRP): <15 µg/L
dissolved oxygen: 90 – 110% saturation
pH: 6.5 – 8.2
secchi depth: n/a
14
Document Set ID: 20002123
Version: 1, Version Date: 21/12/2015
Mary River environmental values and water quality objectives
Co ae
Water area/type Management Water quality objectives to protect aquatic ecosystem EV ~
(refer Plan intent (level of
Marine/estuarine | Aquatic Protect or restore riparian areas. Refer section 3.1.2 — riparian area
riparian areas ecosystem — water quality objectives.
moderately
disturbed
ome |
Area MF1 — Mary | Aquatic Maintain existing water quality (20°, 50° and 80° percentiles),
River catchment ecosystem - high | habitat, biota, flow and riparian areas.
freshwaters ecological value
(several locations) Note: there is insufficient information available to establish current
water quality for these waters. Refer to Appendix D in Queensland
Water Quality Guidelines for details on how to establish a minimum
water quality data set for deriving local 20", 50" and 80"
percentiles.
Lowland Aquatic = turbidity: <50 NTU
freshwater ecosystem — = suspended solids: <6 mg/L
moderately = chlorophyll a: <5 pg/L
disturbed = — total nitrogen: <500 pg/L
» oxidised N: <60 pg/L
= ammonia N: <20 ug/L
= organic N: <420 pg/L
= total phosphorus: <50 pg/L
« filterable reactive phosphorus (FRP): <20 pg/L
= dissolved oxygen: 85% — 110% saturation
=» pH: 6.5-8.0
= secchi depth: n/a
Lowland Aquatic As above but with modification for pH as follows:
freshwater - ecosystem —
stained disturbed
Upland freshwater | Aquatic = turbidity: <25 NTU
ecosystem — = suspended solids: <6 mg/L
moderately = chlorophyll a: <2 ug/L
disturbed = — total nitrogen: <250 ug/L
» oxidised N: <40 pg/L
5 1 1 1 38 2 1061 2628 169 31 0 ammonia
5 1 1 1 38 3 1246 2628 36 30 90 N:
5 1 1 1 38 4 1298 2629 67 30 91 <10
5 1 1 1 38 5 1381 2628 78 39 75 pg/L
4 1 1 1 39 0 988 2680 459 39 -1
5 1 1 1 39 1 988 2689 12 12 61 =
5 1 1 1 39 2 1020 2676 24 48 44 —
5 1 1 1 39 3 1061 2680 134 39 93 organic
5 1 1 1 39 4 1211 2680 36 30 90 N:
5 1 1 1 39 5 1263 2681 90 30 90 <200
5 1 1 1 39 6 1369 2680 78 39 75 pg/L
4 1 1 1 40 0 988 2732 566 39 -1
5 1 1 1 40 1 988 2741 12 12 45 =
5 1 1 1 40 2 1060 2732 76 31 92 total
5 1 1 1 40 3 1152 2732 225 39 93 phosphorus:
5 1 1 1 40 4 1393 2733 66 30 92 <30
5 1 1 1 40 5 1475 2732 79 39 69 pg/L
4 1 1 1 41 0 988 2784 925 39 -1
5 1 1 1 41 1 988 2793 12 12 15 =
5 1 1 1 41 2 1060 2784 155 31 15 filterable
5 1 1 1 41 3 1231 2784 142 31 96 reactive
5 1 1 1 41 4 1388 2784 214 39 93 phosphorus
5 1 1 1 41 5 1619 2784 117 39 90 (FRP):
5 1 1 1 41 6 1752 2785 67 30 90 <15
5 1 1 1 41 7 1834 2784 79 39 39 ug/L
4 1 1 1 42 0 988 2835 805 39 -1
5 1 1 1 42 1 988 2844 12 12 70 =
5 1 1 1 42 2 1061 2835 169 31 77 dissolved
5 1 1 1 42 3 1246 2843 142 31 96 oxygen:
5 1 1 1 42 4 1404 2836 42 30 91 90
5 1 1 1 42 5 1460 2852 24 3 89 —
5 1 1 1 42 6 1499 2836 101 30 96 110%
5 1 1 1 42 7 1615 2835 178 31 96 saturation
4 1 1 1 43 0 988 2887 308 39 -1
5 1 1 1 43 1 988 2896 12 12 52 =»
5 1 1 1 43 2 1062 2887 60 39 42 pH:
5 1 1 1 43 3 1138 2888 54 30 42 6.5
5 1 1 1 43 4 1205 2904 24 3 39 —-
5 1 1 1 43 5 1242 2888 54 30 96 8.2
4 1 1 1 44 0 988 2939 385 39 -1
5 1 1 1 44 1 988 2948 12 12 57 =
5 1 1 1 44 2 1061 2939 114 31 85 secchi
5 1 1 1 44 3 1190 2939 112 39 96 depth:
5 1 1 1 44 4 1320 2939 53 31 96 n/a
4 1 1 1 45 0 1221 3322 40 29 -1
5 1 1 1 45 1 1221 3322 40 29 96 14
4 1 1 1 46 0 44 3413 416 26 -1
5 1 1 1 46 1 44 3414 149 25 96 Document
5 1 1 1 46 2 204 3413 48 26 96 Set
5 1 1 1 46 3 265 3414 37 24 96 ID:
5 1 1 1 46 4 315 3414 145 25 95 20002123
4 1 1 1 47 0 43 3456 544 29 -1
5 1 1 1 47 1 43 3456 119 25 96 Version:
5 1 1 1 47 2 176 3456 22 29 95 1,
5 1 1 1 47 3 212 3456 109 25 96 Version
5 1 1 1 47 4 335 3456 75 25 96 Date:
5 1 1 1 47 5 422 3456 165 25 96 21/12/2015See the original
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