Cyanotoxins | LCRA Cyanotoxins | LCRA


LCRA ELS has temporarily changed its sample drop-off procedures to help protect staff and clients from COVID-19. Read more. The laboratory continues to accept samples from 8 a.m. to 5 p.m. Monday-Friday.

LCRA Environmental Laboratory Services

A NELAP laboratory providing quality testing to safeguard public health and ensure regulatory compliance.

Meeting regulatory requirements

  1. Request a quote or order bottle kit.
  2. Sign and return quote.
  3. ELS will ship bottle kits or schedule sampling event.
  4. ELS will analyze samples.
  5. ELS will deliver the final report to our customer.

Cyanotoxin Analytical Methods, Analytes and Reporting Limits

EPA Method Analytes Aqueous & Drinking Water Reporting level (ug/L)
E545 Anatoxin-a 0.03
E545 Cylindrospermopsin 0.09
E546 Total microcystins 0.3
E544 microcystin-LA 0.008
E544 microcystin-LF 0.006
E544 microcystin-LR 0.02
E544 microcystin-LY 0.009
E544 microcystin-RR 0.006
E544 microcystin-YR 0.02
E544 nodularin-R 0.005

What are cyanobacteria?

Source: The United States Environmental Protection Agency

Cyanobacteria, or blue-green algae, naturally occur in lakes, rivers and other freshwater systems. Cyanobacteria can rapidly form harmful algal blooms (HABs) in certain environmental conditions, including warm, slow-moving water with abundant nutrients. Some HABs are capable of producing cyanotoxins which can pose health risks to humans and animals through drinking water and recreational water exposure.