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Annual report 2016-2017

wide, and is shown in Figure 2. Patea Beach is an elevated site which for most of the time is dry. Rain that does fall on the site drains away at a very rapid rate. The site does not suffer from flooding from rain or tidal action, due to its elevation. Monitoring over the past four years noted no discharge of leachate or liquids from the base of the dune as a result of the discharge. page 4 Figure 1 Regional map showing the location of the Patea green waste site

PDP Sept 2002 Dioxin concentrations in residential soil Paritutu New Plymouth

million tonnes of soil. On residential properties nearest to the Dow plant, soil dioxin concentrations were typically in the range 5 to 15 ng/kg of soil, falling to a range of 1 to 5 ng/kg further out. One sample had a concentration of 27 ng/kg. There was 92 ng/kg measured at a non-residential site, on the west- facing slope of Mount Moturoa Domain. Generally there was little difference between soil dioxin levels in lawn areas compared with gardens on the same property.

Obtaining a resource consent

approval and the environmental effects are minor, a decision on the application will be made by the Council’s Director-Resource Management. It’s important to note that although most applications fall into this ‘non-notified’ category, hundreds of parties are consulted by resource consent applicants in Taranaki each year. If the effects are more than minor or an affected party does not give written approval, the application will have to be notified. People may then make submissions on the application.

1FurtherInformation RemediationNZLtd

figure of 43mm of rainfall per hour will be utilised. This is a very conservative figure as values for the top 30 rain occurrences range from 8.0 to 15mm with the average being 9.4mm (refer Table 2). Runoff of the falling rain will be influenced by the site’s runoff coefficient. This has been calculated to be 0.25 as per MBIE Verification Method E1/VM1 (1 January 2017). Remediation (NZ) Ltd considers this coefficient to be a conservative runoff coefficient as the composting

2RemediationAEE revised

figure of 43mm of rainfall per hour will be utilised. This is a very conservative figure as values for the top 30 rain occurrences range from 8.0 to 15mm with the average being 9.4mm (refer Table 2). Runoff of the falling rain will be influenced by the site’s runoff coefficient. This has been calculated to be 0.25 as per MBIE Verification Method E1/VM1 (1 January 2017). Remediation (NZ) Ltd considers this coefficient to be a conservative runoff coefficient as the composting

Colson Rd Landfill consent monitoring 2018-2019

undertaken on 24 October 2018 47 Table 10 Results of metal analysis undertaken on 6 May 2019 48 Table 11 Results of rain event monitoring – discharge and Puremu Stream samples, 18 September 2018 51 page iii Table 12 Results of rain event monitoring - Manganaha Stream, 18 September 2018 51 Table 13 Biomonitoring sites in the Puremu and Manganaha Streams related to the Colson Road landfill 52 Table 14 Chemical analysis of Colson Road landfill groundwater sampled

STDC Opunake WWTP Annual Report 2021-2022

out during fine weather following a period of heavy rain throughout the catchment. The influent screen was operating and wastes were fully contained. The main pond was dark green with a slightly turbid appearance. No odours were noted. Approximately 50 birds were present, the majority of which were mallard and teal ducks. Both wetland pond levels were normal. These were green/brown in colour and slightly turbid. The wetland sump pump was operating at the time of inspection. No surface

RKM Piggery Annual Report 2022-2023

Again odour was very minimal. No visual environmental impacts downstream of the discharge point to the Tawhiti Stream observed at any time during the financial year. Effluent collection points within piggery viewed during all inspections. Found to be in good condition, with no signs of spills or overflows even after heavy prolonged rain periods. Bunding functioning well. During the 8th May inspection a burst underground effluent pipe between the southern sheds was brought to the attention