Needs Water. Nitrates in groundwater at 27 sites Groundwater levels at 10 sites Pesticides in groundwater at 7 sites Snow Evaporation Evaporation Rain Snow Groundwater flow Surface runoff Water Cycle Irrigation circle in south Taranaki page Juni r Environmentalists Page Word find S ITE 20 ISSUE NO.JULY 14 70 abandoned well biodegradable chemical clean conservation depletion drinking environment glass irrigation
Waitaha catchment consent monitoring report - Taranaki Regional Council.
overabundance of algae and aquatic weeds, impact on the growth of sensitive species, or even become toxic to freshwater organisms. Five sites are monitored for ammonia, all of which fall within band A. At these sites, ammonia is not likely to have any toxic effect, even on the most sensitive species. Modelling estimates (Figure 4) however, suggest that around 66% of rivers or streams are in band A, while 34% are in band B. Five sites are monitored for nitrate. One
Colson Rd landfill leachate 22 Table 4 Results of analysis of under liner drainage 23 Table 5 Chemical analysis of the Manganaha Stream 24 Table 6 Chemical analysis of the Puremu Stream, sampled on 11 December 2013 25 Table 7 Chemical analysis of the Puremu Stream, sampled on 14 March 2014 26 Table 8 Results of metal analysis undertaken on 13 December 2013 27 Table 9 Results of rain event monitoring samples taken on 1 October 2013 28 Table 10 Results of rain event monitoring
stormwater catchments were clean. The Herekawe Stream was in low flow, with slight turbidity resulting from the discharge that dissipated within 25 m. There were no visible emissions to air. An odour survey was conducted around the site at and no odours were noted. 22 February 2019 There was light rain falling during the inspection, however only 3 mm of rainfall had been recorded over the previous week at the Brooklands Zoo monitoring station. Stormwater pond SV8000 contained 800 m3 of
relation to composting and waste water irrigation areas. page Photo 1 A fyke net, set at site 2, Haehanga Stream. Results and Discussion On the day that the nets were set, a localised rain event caused flows to increase in the Haehanga Stream. This also resulted in the discharge of sediment-contaminated stormwater into the Haehanga Stream, resulting in discolouration. Although discolouration is frequently noted in this catchment, the degree of discolouration at sites 2 and 3 was
improve the area and reduce ponding. The culvert over the waterway looked good and appeared to be coping with flood events. The area where muds were originally spread had pasture establishing. The area where muds were most recently being applied had good contouring and bunding across three sides. Some muds had migrated to the soil surface through natural processes; these muds were found to be weathering and broke apart easily when handled. Ponded water around the spreading area from recent rain
corner, or south toward swales in the grassed area and then to a settling pond on the southern boundary. Stormwater from a storage area to the south of the main building is transported across the paddocks to a manhole. During heavy rain overflow from the settling pond also discharges into a single manhole and enters the piped tributary. 1 The Council has used these compliance grading criteria for more than 19 years. They align closely
River water quality Nutrients Ammonia, nitrate, and phosphorus are important for plant growth, but in excess amounts can cause problems in freshwater. They can lead to an overabundance of algae and aquatic weeds, impact on the growth of sensitive species, or even become toxic to freshwater organisms. One site is monitored for ammonia, and falls in band A. At this site, ammonia is likely to have little to no observed effect on ecosystem health. Modelled estimates supports the
Executive Audit and Risk Agenda July 2025