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Swimming Water Quality

The map below provides a summary of monitoring results from more than 80 popular coastal, river and lake recreation sites around the Bay of Plenty.  Sites are monitored for faecal contamination (bacterial monitoring) from October to March each year and for toxin-forming algae species (algal bloom monitoring) from October to June each year. Click on the area of interest for more detailed information.

You should avoid swimming in rivers for 48 hours (two days) after heavy or prolonged rain. This is because the water can be contaminated by farm and urban run-off.

If you suspect an algal bloom is present, don't swim or take part in an activity that may result in accidental consumption or exposure to water affected by algal blooms. 




Public Health Advice


Lower Ngongotahā Stream

Kaiate Falls

2 Mile Creek, Waihi Beach

3 Mile Creek, Waihi Beach

Lower Waimapu Stream, Greerton (includes stream adjacent to Marist Rugby fields, Maleme Street drain)

Courtney drain, Fraser Cove

Utuhina Stream - temporary, current




Long term

Long term

Long term


Long term



Avoid recreational water contact


Elevated levels of faecal contamination


* See map for date of last sample


For warnings on shellfish areas and other waterways, please go to the Toi Te Ora - Public Health website.

Lake Rotoiti at Te Weta BayLake Rotoiti at TumoanaLake Rotoehu at Otautu ArmLake Rotoehu at Kennedy BayLake Tarawera at Bay View RdLake Tarawera at The LandingWaioeka River at Pile RdWhakatane River at Peketahi BridgeRangitaiki River Upstream at Murupara Riverside ReserveWairoa River at SH 29Lake Tarawera at Hot Water BeachHamurana at Hamurana RdPapamoa Beach at Harrison's CutTauranga Harbour at Bowentown Boat RampWhakatane River at Ruatoki BridgeRangitaiki River at Te Teko BridgePongakawa River at SH2 Tarawera Beach at Tarawera River MouthKereu River at SH35Whanarua BayTe Kaha Beach Maraetai BayHikuwai Beach End of Snell RoadWaiotahi Beach Surf ClubWaiotahi EstuaryOhiwa Harbour at Reserve Boat RampOhope Beach Anne St Ohope Beach Surf Club Whakatane Heads Piripai at Ohuirehe RdPukehina Beach Waihi Estuary Main ChannelMaketu Surf ClubWaimapu BridgeTilby Point at Fergusson ParkOmokoroa DomainPahoia BeachPilot Bay Mid Beach Mt Maunganui at Surf Club Waihi Beach Surf ClubAnzac Bay Tanners Point Beach Ongare PointTauranga Harbour at Maungatapu BrgLake Rotoma at Matahi Lagoon Lake Rotoma at Anaputa Point, BeachLake Rotoma at WhangaroaLake Rotoiti at Hinehopu, JettyLake Rotoiti at Gisborne PointLake Rotoiti at RuatoLake Rotoiti at Okawa BayLake Rotoiti at Te Akau PointLake Rotoiti at OtaramaraeLake Okataina at BeachLake Okareka at Steep St ParkLake Okareka at JettyLake Tikitapu at BeachLake Rotorua at MoureaLake Rotorua at Holdens BayLake Rotorua at OhinemutuLake Rotorua at NgongotahaLake Rotorua at HamuranaLake Tarawera at Rangiuru BayLake Okaro Lake Rerewhakaaitu at Sports GroundLake Rerewhakaaitu at Homestead ArmOtara River  at SH35 Waioweka River at Bend near Waioeka PaWaioeka River at SH2 Tauranga River at Wardlaw GladeWhakatane River at Landing Road Rangitaiki River at Thornton Boat RampTarawera River at Kawerau BridgeKaituna River at Trout Pool RdPuarenga at WhakarewarewaNgongotaha Stream at Railway BridgeWaiteti Stream at SH36Utuhina Stream at Pukehangi RoadUtuhina Stream at Lake RoadOhau Channel at SH 33 BridgeWairoa River at SH2Uretara Stream at Henry RdWairoa River below McLaren FallsTuapiro Stream at McMillan RoadKaiate Falls at WaitaoLake Tarawera at Boat Shed BayWaitui Reserve at Te PunaWaihi Beach near 3 Mile Creek
Bathing Beach Map Tauranga Rotorua Whakatane East Cape Rangitaiki

The Three Tier System for Swimming Water Quality

Green DotGreen

Highly likely to be uncontaminated. 'Suitable' for bathing, but requiring water managers to continue surveillance or routine monitoring.

Amber DotAmber

Potentially contaminated. 'Potentially unsuitable', requiring water managers to undertake further investigation to assess suitability for recreation.

Red DotRed

Highly likely to be contaminated. 'Highly likely to be unsuitable', requiring urgent action from water managers, such as public warnings.

Further information

  • For further information on microbiological water quality monitoring, visit our monitoring information page.
  • For further information on toxin-forming algae species visit our algae page.
  • For more information on the health impacts and symptoms from accidentally coming into contact with contaminated water, please go to the Toi Te Ora - Public Health website.
  • Visit the Rotorua Lakes Lake Health Warnings page for information on algal blooms in our lakes and our Rivers Health Warnings page for information on algal blooms in our rivers, or contact us on 0800 884 880.
  • For seasonal indicator bacteria data go to Lawa website