Lake Howard

Lake Howard is one of a group of seven lakes just north of the Tulalip Reservation in Snohomish County that are regularly sampled by IWS (Crabapple, Goodwin, Howard, Ki, Loma, Martha, and Shoecraft). This small, 26 acre lake experiences occasional blue-green algae blooms, which may produce dangerous toxins, so avoid water contact if there are warning signs posted.

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LakeKeyDateDO mg/LTemp CpHCond uS/cmChl ug/LAlk mg/LTurb NTUNH3 ug-N/LTN ug-N/LNO2+3 ug-N/LTP ug-P/LSRP ug-P/L
HowardHOW9/21/< 10< 53.7
HowardHOW3/30/1011.449.89.09118.4NA45.15.37< 10593< 1026.8< 3
HowardHOW6/21/108.74187.8116.74.343.71.6521.3446< 10< 5< 3
HowardHOW7/25/< 5< 3
HowardHOW8/6/128.923.97.9117.71.343.90.68< 10448< 105.93
HowardHOW7/10/139.0623.37.8119.91.545.10.53< 10417.9< 108.1< 3
HowardHOW7/21/148.823.181212.0846.20.42< 10253< 107.2< 3
HowardHOW7/26/179.1123.48120.83.346.40.60311.2421.6< 108.2< 3