Hutt River at Silverstream Bridge

Lower Hutt, New Zealand
Managed by Swim Guide NZ

The Hutt River flows through the southern North Island of New Zealand. It flows south-west from the southern Tararua Ranges for 56 km, forming a number of fertile floodplains, including Kaitoke, central Upper Hutt and Lower Hutt.

Water Quality
  • Failed to meet water quality standards

  • Special Status
  • This means the affiliate organization managing a beach has set the beach status based on special local knowledge or information. Check the beach description and the Sources section for details.
For water quality icon legend, click:  
Monitoring Frequency

Hutt River at Silverstream Bridge is sampled weekly from November 1st from March 31st.

Source Information

Greater Wellington Regional Council monitors water quality at popular swimming spots throughout the Wellington.

Water quality data on Swim Guide is sourced from the LAWA Can I Swim Here? website. www.lawa.org.nz/swimAt this site, the risk level of E. coli is determined using predictive modelling year round. Potentially toxic algae is also monitored during the summer months. E. coli is a faecal indicator bacteria 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 predicted result was in the range of 0 - 550 E. coli / 100 mL or the toxic algae level is below 20% coverage on rocks.Beach sites are shown as a RED swim icon if the latest E. coli predicted result exceeded 550 E. coli / 100 mL or the toxic algae level exceeds 20% coverage or mats are forming on the river's edge.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 flow rates, and what facilities are available, the monitoring history at this site and helpful factsheets.

Water Quality Graph

Hutt River at Silverstream Bridge

Lower Hutt, New Zealand
Managed by Swim Guide NZ

Water Quality
  • Failed to meet water quality standards
  • Special Status
  • This means the affiliate organization managing a beach has set the beach status based on special local knowledge or information. Check the beach description and the Sources section for details.
For water quality icon legend, click:  

The Hutt River flows through the southern North Island of New Zealand. It flows south-west from the southern Tararua Ranges for 56 km, forming a number of fertile floodplains, including Kaitoke, central Upper Hutt and Lower Hutt.

Monitoring Frequency

Hutt River at Silverstream Bridge is sampled weekly from November 1st from March 31st.

Source Information

Greater Wellington Regional Council monitors water quality at popular swimming spots throughout the Wellington.

Water quality data on Swim Guide is sourced from the LAWA Can I Swim Here? website. www.lawa.org.nz/swimAt this site, the risk level of E. coli is determined using predictive modelling year round. Potentially toxic algae is also monitored during the summer months. E. coli is a faecal indicator bacteria 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 predicted result was in the range of 0 - 550 E. coli / 100 mL or the toxic algae level is below 20% coverage on rocks.Beach sites are shown as a RED swim icon if the latest E. coli predicted result exceeded 550 E. coli / 100 mL or the toxic algae level exceeds 20% coverage or mats are forming on the river's edge.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 flow rates, and what facilities are available, the monitoring history at this site and helpful factsheets.

Water Quality Graph

  Beach Location Water Quality
Upper Hutt, New Zealand
Upper Hutt, New Zealand
Lower Hutt, New Zealand
Upper Hutt, New Zealand
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