LT2 Monitoring
LT2 Monitoring
The Long Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR or LT2 rule) addresses the health effects associated with Cryptosporidium in surface water used as a drinking water supply. All public water systems using surface water or groundwater under the direct influence of surface water are required to monitor under LT2.
EMSL Qualifications:
- EMSL is fully approved by the USEPA for LT2 Round 2 Cryptosporidium monitoring program using EPA method 1623/1623.1.
- EMSL is cerified in most states to analyze LT2 samples.
- EMSL is a leading laboratory with the largest sample capacity for LT2 testing.
- EMSL surpassed other laboratories participating in the most recent EPA’s performance testing (PT) studies with 72.5% to 68.0% for recoveries of Cryptosporidium (national average is 59.5%).
Frequently Asked Questions:
- Can you take samples from my state?
We can take Cryptosporidium samples from most states. Please contact Aquatic Sciences Laboratory for our capability to analyze Cryptostropridium in your state.
- When should I start sampling for Round 2?
Please contact your state for the specific dates. Below is a general sampling schedule for Public Water Suppliers (PWSs).
|
Schedule
|
System Serving Population
|
Begin Date
|
Tests to perform
|
|
Schedule 1
|
≥100,000
|
April 1, 2015
|
Cryptosporidium,
E. coli, Turbidity
|
|
Schedule 2
|
50,000 - 99,000
|
Oct. 1, 2015
|
Cryptosporidium,
E. coli, Turbidity
|
|
Schedule 3
|
10,000 - 49,999
|
Oct. 1, 2016
|
Cryptosporidium,
E. coli, Turbidity
|
|
Schedule 4
(E. Coli)
|
<10,000
|
Oct. 1, 2017
|
E. coli
|
|
Schedule 4
(Crypto)
|
<10,000
|
April 1, 2019
|
Cryptosporidium
|
- How do I collect samples for testing?
EMSL can accept either 10 L bulk water or field filtered samples. For field filtered samples, EMSL offers a crypto filtration apparatus to easily and accurately collect sample on field. EMSL will provide a detailed sampling instruction.
- How to ship samples?
Generally, all crypto samples should be shipped overnight. EMSL also offer pick up services by our couriers, which depends on your location. Please contact Aquatic Sciences Laboratory for the possibility to pick up samples from your location.
Order Sampling Supplies
Request Pricing
Technical Questions
24/7 Account Access
Email Us
