Whitianga Harbour data - Whitianga Marina Environmental Impact Assessment (1986)

A summary of environmental effects from the 350 berth marina proposal based on associated professional reports. Volume 2 and 3 of the Environmental Impact Assessment includes reports on: Archaelogical studies – New Zealand Historic Places Trust Visual Assessment – Boffa Miskell Partners Ltd Dolphins – Dr A. Baker Ecological Overview – Dr S. Penny Ecological Studies – Bioresearchers Ltd Noise Studies – Hegley Acoustic Consultants Ltd Navigation – Murray North & Munro Geotechnic & Hydrological report – Wilkins & Davies, Marina Design Ltd

Dolphins (Dr A. Baker) – history of dolphin use of the harbour, discussion of possible effects of the marina activity. Ecological Overview (Dr S. Penny) – general descriptions of harbour ecosystems and catchment. Discussion of potential ecological effects. Ecological Studies (Bioresearchers Ltd) – water quality, marine biota, sediment grain size, sediment chemical analyses) Geotechnic & Hydrological report (Wilkins & Davies, Marina Design Ltd) – geology, particle size distribution, tides, wind data, wave climate, breakwater and sea wall protection, siltation.

Whitianga Harbour

Whitianga Harbour in vicinity of marina – E2752078 N6481712, NZMG, 1:20000, AREA And harbour in general – E2750534 N6477849, NZMG, 1:50000, AREA

1986

Various – see individual appendixed reports. Dolphins (Dr A. Baker) – history of dolphin use of the harbour, discussion of possible effects of the marina activity. Ecological Overview (Dr S. Penny) – review of benthic macroinvertebrates (Susanne Miller – Hauraki Catchment Board), bird surveys, recreations use survey, Hauraki Catchment Board water quality. Ecological Studies (Bioresearchers Ltd) – water quality samples analysed for oil-grease, zinc, lead, copper and tin; macroinvertebrate transects, description of hard surface biota, sediment grain size samples, sediment chemical analysis - % organic carbon, totatl phosphorus, available K nitrogen, oil and grease, chemical oxygen demand, free sulphide, mercury, lead, zinc, chromium, cadmium, copper, tin, settleability following US Enviromental Protection Agency Guidelines). Geotechnic & Hydrological report (Wilkins & Davies, Marina Design Ltd) – test pits, penetrometer tests, posthole bores, random sampling for particle size analysis, compaction tests, hydraulic scale model, Frequency of collection: One off

Not reported, various – see individual appendixed reports Gaps in collection: Not reported Data quality: not reported, various – see individual appendixed reports Attribute accuracy: Not reported, various – see individual appendixed reports Completeness: Not reported, various – see individual appendixed reports

reports, maps, spreadsheets

Freely available

Finished

Thames Coromandel District Council were interested in the feasibility of building a marina to alleviate boat congestion in Whitianga Harbour. As the Council had no resources to develop a marina, Wilkins & Davies were approached in late 1984 to promote and develop a marina jointly with council.