DDW-2024-008005

Instructions for SWTR Turbidity Exceedance Notice--Tier 2
Template on Reverse

Since surface water treatment filtration treatment technique violations are included in Tier 2, you must provide public notice to persons served as soon as practical but within 30 days
after you learn of the violation R309-220-6(2)). This template may also be adapted for use with turbidity MCL violations.

For Exceedances of Single Turbidity Limits

You must consult with the Division of Drinking Water as soon as practical but within 24 hours of learning of the violation. During the consultation, the agency may choose to elevate
your turbidity exceedance to Tier 1. If consultation does not occur, the violation is automatically elevated to Tier 1 (use theTurbidity Single Exceedance as Tier 1 template). For a
Tier 2 notice, describe your violation as follows in the second paragraph of the notice:
ANormal turbidity levels at our plant are [number] turbidity units. A water sample taken [date] showed levels of [number] turbidity units. This was above the standard of [standard] units.
Because of these high levels of turbidity, there is an increased chance that the water may contain disease-causing organisms.@
For Exceedances of Monthly Turbidity Limits

Use the following language to describe your violation and insert into the second paragraph of the template:

AWater samples for [month] showed that [percentage] percent of turbidity measurements were over [standard] turbidity units B the standard is that no more than 5 percent of samples may
exceed [standard] turbidity units per month. The turbidity levels are relatively low. However, their persistence is a concern. Normal turbidity levels at our plant are [number] units.@
Community systems must use one of the following methods R309-220-6(3)):

Hand or direct delivery
Mail, as a separate notice or included with the bill

Non-community systems must use one of the following methods R309-220-6(3)):

Posting in conspicuous locations
Hand delivery
Mail

In addition, both community and non-community systems must use another method reasonably calculated to reach others if they would not be reached by the first method R309-220-6(3)). Such
methods could include newspapers, e-mail, or delivery to community organizations. If you mail, post, or hand deliver, print your notice on letterhead, if available.

The notice on the reverse is appropriate for hand delivery or mail. However, you may wish to modify it before using it for posting. If you do, you must still include all the required
elements and leave the health effects language in italics unchanged. This language is mandatory R309-220-8(4)).

Corrective Action

In your notice, describe corrective actions you are taking. Listed below are some steps commonly taken by water systems with filtration treatment technique violations. Use one or more
of the following actions, if appropriate, or develop your own:

We added chemicals that reduce turbidity.
We sampled both untreated and treated water for the presence of coliform bacteria.
We monitored chlorine levels and adjusted them as needed to compensate for the filtration problems.
We inspected and cleaned the filters.
Make sure to send a copy of each type of notice and a certification that you have met all public notice requirements to the Division of Drinking Water (PO Box 144830, SLC, UT 84114-4830)
within ten days after issuing the notice R309-105-61(3)).

IMPORTANT INFORMATION ABOUT YOUR DRINKING WATER
[System] Did Not Meet Treatment Requirements

Our water system recently violated a drinking water standard. Although this was not an emergency, as our customers, you have a right to know what happened, what you should do, and what
we did to correct this situation.

We routinely monitor your water for turbidity (cloudiness). This tells us whether we are effectively filtering the water supply. [Insert appropriate description of the violation from
instructions.]

What should I do?

You do not need to boil your water or take other actions. We do not know of any contamination, and none of our testing has shown disease-causing organisms in the drinking water.

People with severely compromised immune systems, infants, and some elderly may be at increased risk. These people should seek advice about drinking water from their health care providers.
General guidelines on ways to lessen the risk of infection by microbes are available from EPA=s Safe Drinking Water Hotline at 1 [phone].

What does this mean?

Turbidity has no health effects. However, turbidity can interfere with disinfection and provide a medium for microbial growth. Turbidity may indicate the presence of disease causing
organisms. These organisms include bacteria, viruses, and parasites which can cause symptoms such as nausea, cramps, diarrhea, and associated headaches. These symptoms are not caused
only by organisms in drinking water. If you experience any of these symptoms and they persist, you may want to seek medical advice.

What happened? What was done?

A problem occurred with the treatment system at the water plant. [Describe the reason for high turbidity, corrective actions, and when the system returned or expects to return to compliance.]

For more information, please contact [name of contact] at [phone number] or [mailing address].

Please share this information with all the other people who drink this water, especially those who may not have received this notice directly (for example, people in apartments, nursing
homes, schools, and businesses). You can do this by posting this notice in a public place or distributing copies by hand or mail.

This notice is being sent to you by [system]. Water System ID#: ___________. Date distributed: