Lake Armstrong

Lake Armstrong (Snohomish County) is a 30 acre lake north of Arlington, WA. Although the lake’s nearly 370 acre watershed is mostly undeveloped, Lake Armstrong experiences occasional blue-green algae blooms that may produce toxins. Avoid water contact if there are warning signs posted. Lake Armstrong drains into Armstrong Creek, which in turn discharges into the Stillaguamish River.


Back to Lake List or Lake Map

Data

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
ArmstrongARM8/31/099.820.67.767.85.128.30.71< 10520< 1016.98.2
ArmstrongARM6/23/109.0820.27.753.23.321.10.58< 10480< 1025.312.1
ArmstrongARM7/25/118.621.27.755.49.222.30.8820.6520< 1023.69.5
ArmstrongARM7/31/128.821.47.559.4322.8NA25.652411724.77.7
ArmstrongARM7/15/138.7822.97.461.14.724.51.32< 10430.2< 1015.7< 3
ArmstrongARM7/28/148.523.57.5622.1324.80.4727.548416.415.9< 3
ArmstrongARM7/20/158.1727.47.766.8NA270.37< 10428< 1014.3< 3
ArmstrongARM7/18/168.3822.67.221.33.124.71.7313.3769.1< 1021.1< 3

CSV