River and stream water quality and ecology - Greater Wellington ...

River and stream water quality and ecology in the Wellington region: State and trends
Nitrite-nitrate nitrogen (mg/L)
Site Site name
Median n
Raw data
MASS p
%
Change
Median
Flow-adjusted data
n MASS p
%
Change
%
Cen.
RS02 Mangapouri S at Bennetts Rd 2.135 60 0.050 0.525 2.35 - - - - - 0.00
RS03 Waitohu S at Forest Pk 0.028 59 -0.003 0.095 -11.36 0.029 57 -0.002 0.083 -6.30 5.08
RS04 Waitohu S at Norfolk Cres 0.530 60 -0.006 0.722 -1.08 0.535 58 -0.004 0.825 -0.73 0.00
RS05 Otaki R at Pukehinau 0.038 60 -0.003 0.007 -8.65 0.035 60 -0.004 0.004 -10.51 3.33
RS06 Otaki R at Mouth 0.053 60 -0.003 0.129 -6.27 0.049 60 -0.002 0.229 -4.73 8.33
RS07 Mangaone S at Sims Rd Br 2.000 60 -0.103 0.200 -5.15 1.990 60 -0.072 0.056 -3.59 0.00
RS08 Ngarara S at Field Way 0.255 60 -0.054 0.000 -20.98 - - - - - 1.67
RS09 Waikanae R at Mangaone Walkway 0.110 60 -0.004 0.289 -3.19 0.111 60 -0.005 0.179 -4.23 0.00
RS10 Waikanae R at Greenaway Rd 0.219 60 -0.011 0.227 -5.17 - - - - - 0.00
RS11 Whareroa S at Waterfall Rd 0.320 60 0.000 1.000 -0.08 0.277 57 -0.009 0.706 -3.14 0.00
RS12 Whareroa S at QE Park 0.362 60 0.023 0.077 6.37 0.320 57 0.033 0.200 9.29 0.00
RS13 Horokiri S at Snodgrass 0.407 60 0.006 0.619 1.50 0.366 59 -0.017 0.130 -4.28 0.00
RS14 Pauatahanui S at Elmwood Br 0.215 60 -0.002 0.776 -1.02 0.202 60 0.002 0.724 1.08 3.33
RS15 Porirua S at Glenside 1.000 60 -0.058 0.011 -5.82 0.954 60 -0.042 0.056 -4.15 0.00
RS16 Porirua S at Wall Park (Milk Depot) 0.990 60 -0.044 0.047 -4.47 1.000 60 -0.020 0.229 -2.05 0.00
RS17 Makara S at Kennels 0.316 60 -0.002 1.000 -0.53 0.286 60 -0.009 0.289 -2.85 1.67
RS18 Karori S at Makara Peak 1.325 60 -0.042 0.177 -3.17 1.408 60 -0.028 0.358 -2.12 0.00
RS19 Kaiwharawhara S at Ngaio Gorge 1.150 60 -0.026 0.434 -2.29 1.130 60 -0.012 0.437 -1.01 1.67
RS20 Hutt R at Te Marua Intake Site 0.087 60 -0.002 0.569 -2.03 0.083 60 -0.001 0.832 -1.41 0.00
RS21 Hutt R opp. Manor Park G.C. 0.220 60 -0.007 0.393 -3.04 0.222 59 -0.008 0.220 -3.77 0.00
RS22 Hutt R at Boulcott 0.200 60 -0.010 0.200 -4.92 0.183 59 -0.003 0.516 -1.72 0.00
RS23 Pakuratahi R 50m d/s Farm Ck 0.229 60 -0.009 0.136 -3.93 0.202 60 -0.007 0.358 -2.93 0.00
RS24 Mangaroa R at Te Marua 0.484 60 -0.029 0.039 -6.05 0.489 59 -0.023 0.051 -4.68 0.00
RS25 Akatarawa R at Hutt confl. 0.102 60 -0.005 0.102 -5.20 0.107 60 -0.008 0.013 -7.97 0.00
RS26 Whakatikei R at Riverstone 0.098 60 -0.005 0.179 -5.48 0.099 60 -0.004 0.724 -3.64 0.00
RS27 Waiwhetu S at Wainui Hill Br 0.450 59 -0.020 0.277 -4.44 0.454 59 -0.007 0.613 -1.66 0.00
RS28 Wainuiomata R at Manuka Track 0.075 58 -0.006 0.020 -8.27 0.075 57 -0.006 0.007 -7.69 0.00
RS29 Wainuiomata R u/s of White Br 0.200 59 -0.011 0.514 -5.51 0.188 59 -0.012 0.427 -6.02 0.00
RS30 Orongorongo R at Orongorongo Stn 0.056 59 -0.014 0.000 -25.50 0.052 53 -0.015 0.000 -28.71 1.67
RS31 Ruamahanga R at McLays 0.025 60 -0.002 0.037 -6.90 0.022 60 -0.001 0.525 -2.80 0.00
RS32 Ruamahanga R at Te Ore Ore 0.397 60 -0.037 0.028 -9.45 0.404 60 -0.033 0.229 -8.43 0.00
RS33 Ruamahanga R at Gladstone Br 0.403 60 -0.014 0.522 -3.51 0.402 60 -0.038 0.040 -9.48 0.00
RS34 Ruamahanga R at Pukio 0.331 60 -0.026 0.434 -7.91 0.347 59 -0.035 0.071 -10.47 3.33
RS35 Mataikona Trib at Sugar Loaf Rd 0.016 60 0.000 0.289 -1.27 - - - - - 11.67
RS36 Taueru R at Castlehill 0.071 60 -0.005 0.138 -7.66 0.073 60 -0.010 0.020 -14.54 1.67
RS37 Taueru R at Gladstone 0.910 59 -0.120 0.008 -13.22 - - - - - 0.00
RS38 Kopuaranga R at Stewarts 0.967 60 -0.006 0.671 -0.67 0.954 60 -0.017 0.229 -1.76 0.00
RS39 Whangaehu R 250m u/s confl. 0.965 60 -0.214 0.013 -22.20 - - - - - 0.00
RS40 Waipoua R at Colombo Rd Br 0.895 60 -0.064 0.202 -7.18 0.910 52 -0.051 0.072 -5.72 0.00
RS41 Waingawa R at South Rd 0.066 60 -0.008 0.065 -11.84 0.063 60 -0.003 0.179 -5.02 0.00
RS42 Whareama R at Gauge 0.005 60 0.000 0.943 0.00 0.004 60 0.000 0.437 0.21 38.98
RS43 Motuwaireka S at Headwaters 0.033 58 -0.010 0.090 -31.55 0.006 58 -0.013 0.122 -39.56 1.72
RS44 Totara S at Stronvar 0.010 58 0.000 0.825 -0.94 0.009 58 -0.001 0.417 -9.89 12.07
RS45 Parkvale Trib at Lowes Res. 4.400 47 -0.154 0.360 -3.50 - - - - - 0.00
RS46 Parkvale S at Weir 1.285 60 -0.058 0.076 -4.48 1.196 57 -0.130 0.008 -10.51 1.67
RS47 Waiohine R at Gorge 0.028 60 0.000 0.943 0.00 0.028 60 -0.001 0.229 -3.01 3.33
RS48 Waiohine R at Bicknells 0.295 60 -0.006 0.832 -2.18 0.265 60 -0.014 0.525 -4.72 0.00
RS49 Beef Ck at Headwaters 0.024 60 -0.003 0.003 -12.43 - - - - - 3.33
RS50 Mangatarere S at SH 2 1.240 60 -0.085 0.104 -6.82 1.317 59 -0.051 0.025 -4.11 0.00
RS51 Huangarua R at Ponatahi Br 0.210 60 0.009 0.395 4.14 - - - - - 1.67
RS52 Tauanui R at Whakatomotomo Rd 0.012 59 -0.001 0.002 -8.76 0.011 59 -0.001 0.025 -12.26 3.39
RS53 Awhea R at Tora Rd 0.019 60 -0.001 0.437 -3.89 - - - - - 13.33
RS54 Coles Ck Trib at Lagoon Hill Rd 0.007 50 0.000 0.666 -3.30 - - - - - 12.00
RS55 Tauherenikau R at Websters 0.029 60 0.001 0.832 3.51 0.023 60 0.000 1.000 1.19 1.67
RS56 Waiorongomai R at Forest Pk 0.013 60 0.000 0.474 -3.32 0.008 54 0.000 0.570 3.83 8.33
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