odours or smoke noticed. A downwind assessment did not
reveal any effects beyond the boundary of the site.
9 April 2015
The inspection was undertaken during very heavy rainfall and the Ngapirau stream
was in flood and discolored at the Sandy Bay confluence. There were no odours or
hydrocarbon sheen present at the beach end, and no effects of any previous discharge
were evident. No odours were noted from beyond the boundary of the site down wind.
14 April 2015
The site was inspected
any visual effects on water quality.
There was no flaring at the time of inspection.
7 November 2013
The site was neat and tidy. No flaring was occurring at the time of inspection. The ring
drains and bunds were clear of obstructions and contaminants. The skimmer pits were
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clear with no visible effects from any discharges to the adjacent stream. Everything was
satisfactory.
9 January 2014
Inspection was undertaken during heavy rainfall resulting in
environmental effects if it was buried with the green waste rather than being removed.
During the year under review no unacceptable material was dumped at the Patea Beach green waste
discharge site. There has been no leachate observed discharging from the sand dune area or the stockpiled
green waste during the period under review, or in previous years. These factors, combined with the sandy
substrate and low rainfall at the beach would be restricting the production of leachate from the green
waste.
treatment chemicals)
Conductivity Conductivity, an indication of the level of dissolved salts in a sample, usually
measured at 20°C and expressed in mS/m
Cr Chromium
Cu* Copper
Fresh Elevated flow in a stream, such as after heavy rainfall
g/m3 Grams per cubic metre, and equivalent to milligrams per litre (mg/L). In water, this is
also equivalent to parts per million (ppm), but the same does not apply to gaseous
mixtures
Incident Register A register containing a list of events
observed discharging from the sand dune area or the stockpiled
green waste during the period under review. The sandy substrate combined with low
rainfall at the beach would be restricting the production of leachate from the green
waste.
3.3 Evaluation of performance
A tabular summary of STDC’s compliance record at this site for the year under review
is set out in Table 1.
Table 1 Summary of performance for consent 6088-3
Purpose: To discharge green waste onto land for stabilisation
Usually expressed as colony forming
units per 100 millilitre of sample
F fluoride
FC faecal coliforms, an indicator of the possible presence of faecal material
and pathological micro-organisms. Usually expressed as colony forming
units per 100 millilitre sample
fresh elevated flow in a stream, such as after heavy rainfall
g/m3 grams per cubic metre, and equivalent to milligrams per litre (mg/L). In
water, this is also equivalent to parts per million (ppm), but the same
does not
Regional Cleanfill Annual Report 2022-2023
Policy & Planning Committee agenda June 2020
Mangaotea Aqueduct: 199.25 m a.s.l
Lower Mangaotea: 199.15 m a.s.l
5 Recording of water levels and
rainfall
Water levels at the above sites to be
recorded, with the inclusion of rainfall at
the Mangaotea Aqueduct
3372-Discharge to
Makara Stream 2 Recording of discharge rate Record the rate of water discharged to the
Makara Stream (not to exceed 7,787 L/s)
3373-To dam the
Mako Stream
5 Minimum lake level Minimum level: 194 m a.s.l (except during
maintenance)
6 Maximum
The site was
found to be generally well maintained and tidy during inspections, and all consent conditions were being
complied with. No objectionable dust or odour effects were observed, bunding was well maintained and site
contouring was adequately directing all quarry runoff to the stormwater settlement ponds. Discharges after
heavy rainfall were clear.
Photo 1 AA Contracting Ltd quarry settlement pond January 2020
The Council monitors for possible effects on stream life by …