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)