Lake Ratapiko at boat ramp

Lake Ratapiko is approximately 12 kilometres from Inglewood township and drains the eastern hill country of the Waitara catchment area. The lake is replenished by diversion water flow from the mid reaches of the Manganui River for the Motukawa Hydro Electric Plant scheme. For all sites, the Council advises: Avoid for three days after heavy rain, if the lake is high, or if you cannot see the bottom clearly.

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Water Quality

Passed water quality tests 60-95% of the time
Historical Status
This status is based on the latest sample, taken on March 27th, 2023. The Swim Guide - New Zealand updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on March 27th, 2023 at 8:29 PM.

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Monitoring Frequency

Source Information

The Taranaki Regional Council monitors water quality at popular swimming spots throughout the Taranaki region.

Water quality data on Swim Guide is sourced from the LAWA Can I Swim Here? website. www.lawa.org.nz/swim

At this site, water is regularly tested for levels of E. coli and potentially toxic algae during the summer months. E. coli is a faecal indicator bacteria is used to indicate the level of harmful pathogens in the water, and the presence of toxic algae blooms can be harmful to people and animals.

See information on recreational water quality monitoring in New Zealand in the LAWA factsheet: https://www.lawa.org.nz/learn/factsheets/coastal-and-freshwater-recreation-monitoring/

Beach sites are shown as a GREEN swim icon if the latest E. coli test result was in the range of 0 - 550 E. coli / 100 mL or the potentially toxic cyanobacteria biovolume or total cyanobacterial material is less than 0.5 mm3/L..

Beach sites are shown as a RED swim icon if the latest E. coli test result exceeded 550 E. coli / 100 mL or the potentially toxic cyanobacteria biovolume or total cyanobacterial material is equal to or more than 0.5 mm3/L or cyanobacteria scums are consistently present.

A RED swim icon status is also assigned if this site frequently exceeds the standards or there is a temporary water quality issue outside the routine testing programme (e.g. sewage overflow).

See information on the standards for recreational water quality monitoring in New Zealand in the 'What do the swim icons mean?' LAWA factsheet.

LAWA recommends for all sites, to avoid swimming for 2 - 3 days after significant rain, even for sites that normally have good water quality.

A good rule of thumb is to check that you can see your toes in knee deep water.

Toxic algae blooms can form rapidly, and even small amounts can be harmful - stay safe and get to know what to look for here so you can avoid it

(link to https://www.lawa.org.nz/learn/factsheets/potentially-toxic-algae/)

See www.lawa.org.nz/swim for up to date information on current warnings and alerts, weather conditions, real-time water temperature and water levels, what facilities are available, the monitoring history at this site and helpful factsheets.

Water Quality Graph