Lake Toxin Monitoring Project

Lakes monitored
Elk Lake
Updated September 24, 2025
Date Lake Test Location Toxin Type Amount Report
Sep 24, 2025 Elk lake Fishing Dock Total Microcystin 0.0980 ug/L W189904
Sep 17, 2025 Elk lake Fishing Dock Total Microcystin 0.0800 ug/L W189787
Sep 10, 2025 Elk lake Fishing Dock Total Microcystin 0.1140 ug/L W189640
Sep 2, 2025 Elk lake Fishing Dock Total Microcystin 0.1310 ug/L W189454
Aug 27, 2025 Elk lake Fishing Dock Total Microcystin 0.0840 ug/L W189349
Aug 20, 2025 Elk lake Fishing Dock Total Microcystin 0.2030 ug/L W189204
Aug 13, 2025 Elk lake Fishing Dock Total Microcystin 0.1290 ug/L W189055
Aug 5, 2025 Elk lake Fishing Dock Total Microcystin 0.1210 ug/L W188883
Jul 29, 2025 Elk lake Fishing Dock Total Microcystin 0.2400 ug/L W188729
Jul 23, 2025 Elk lake Fishing Dock Total Microcystin 0.3770 ug/L W188627
Jul 16, 2025 Elk lake Fishing Dock Total Microcystin 0.9550 ug/L W188477
Jul 9, 2025 Elk lake Fishing Dock Total Microcystin 0.3960 ug/L W188342
Jul 2, 2025 Elk lake Fishing Dock Anatoxin A 0.0250 ug/L W188189
Jul 2, 2025 Elk lake Fishing Dock Total Microcystin 0.4840 ug/L W188189
Jun 25, 2025 Elk lake Fishing Dock Total Microcystin 0.2400 ug/L W188072
Jun 18, 2025 Elk lake Fishing Dock Anatoxin A 0.0040 ug/L W187941
Jun 18, 2025 Elk lake Fishing Dock Total Microcystin 0.1790 ug/L W187941
Jun 11, 2025 Elk lake Fishing Dock Anatoxin A 0.0110 ug/L W187808
Jun 11, 2025 Elk lake Fishing Dock Total Microcystin 0.1760 ug/L W187808
Jun 4, 2025 Elk lake Fishing Dock Total Microcystin 0.0790 ug/L W187647
Jun 4, 2025 Elk lake Fishing Dock Anatoxin A 0.0110 ug/L W187647
May 28, 2025 Elk lake Fishing Dock Total Microcystin 0.0560 ug/L W187491
May 28, 2025 Elk lake Fishing Dock Anatoxin A 0.0230 ug/L W187491
May 21, 2025 Elk lake Fishing Dock Total Microcystin 0.4270 ug/L W187326
May 21, 2025 Elk lake Fishing Dock Anatoxin A 0.0740 ug/L W187326
May 14, 2025 Elk lake Fishing Dock Anatoxin A 0.0100 ug/L W187201
May 14, 2025 Elk lake Fishing Dock Total Microcystin 0.0420 ug/L W187201
May 7, 2025 Elk lake Fishing Dock Total Microcystin 0.0560 ug/L W187036
May 7, 2025 Elk lake Fishing Dock Anatoxin A 0.0100 ug/L W187036
Mar 19, 2025 Elk lake Fishing Dock Total Microcystin 0.0000 ug/L W186089
Feb 19, 2025 Elk lake Fishing Dock Total Microcystin 0.0000 ug/L W185553
Feb 19, 2025 Elk lake Fishing Dock Anatoxin A 0.0100 ug/L W185553
Jan 22, 2025 Elk lake Fishing Dock Total Microcystin 0.0000 ug/L W185129
Oct 23, 2024 Elk lake Fishing Dock Anatoxin A 0.0160 ug/L W183633
Oct 23, 2024 Elk lake Fishing Dock Total Microcystin 0.0520 ug/L W183633
Oct 9, 2024 Elk lake Fishing Dock Total Microcystins 0.0000 ug/L W183344
Oct 2, 2024 Elk lake Fishing Dock Total Microcystins 0.0176 ug/L W183197
Sep 25, 2024 Elk lake Fishing Dock Total Microcystins 0.0280 ug/L W183063
Sep 18, 2024 Elk lake Fishing Dock Total Microcystins 0.0130 ug/L W182937
Sep 4, 2024 Elk lake Main Beach Total Microcystins 0.0060 ug/L W182658
Aug 21, 2024 Elk lake Fishing Dock Total Microcystins 0.0340 ug/L W182408
Aug 15, 2024 Elk lake Fishing Dock Anatoxin A 0.1190 ug/L W182313
Aug 15, 2024 Elk lake Fishing Dock Total Microcystins 0.0410 ug/L W182313
Jul 25, 2024 Elk lake Fishing Dock Total Microcystin 0.0040 ug/L W181911
Jul 25, 2024 Elk lake Fishing Dock Anatoxin A 0.1250 ug/L W181911
Jul 18, 2024 Elk lake Fishing Dock Total Microcystin 0.0580 ug/L W181752

As part of MB Laboratories internal environmental initiative, we are sharing microcystin test results from select lakes around Victoria, BC where algal blooms have been reported. This project is not affiliated with any government agency or regulatory body — we are providing this information as a community service.

This project reflects our commitment to environmental testing and transparency and we hope this data helps support informed community decisions.

Human Health Guideline Values

For reference, the following human health guideline values apply:

Use Microcystin Cylindrospermopsin
Canadian Drinking Water 1.5 µg/L (Health Canada, 2024) Not specified
U.S. EPA Drinking Water 1.6 µg/L (children-adults, 2024) 3.0 µg/L (EPA, July 2024)
U.S. EPA Recreational 8.0 µg/L (EPA, July 2024) 15.0 µg/L (EPA, July 2024)

These limits are for humans. Children and pets are more sensitive and may require extra caution.


Disclaimers

  • We are not a regulator. Always consult your local government or health authority for official guidance.
  • We are reporting toxin levels only.
  • We do not make any claims about water safety for drinking or recreation.

Our testing was performed using:
Method Ref: MBL-S05-LC/MS/MS Algae Toxins rev 5-23Jun23
Based on EPA Method 544 (EPA/600/R-14/474)
(Sevasti-Kiriaki A. et al., J. Haz. Materials 323(A):56-66, 2017; PICES Session 57, Oct 27, 2021)