Current Public Notices

CITY OF MATTOON

Water Quality Update – November 18, 2025

Current Sample

Sample collected on November 17th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.045 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

We will continue to sample per-EPA guidelines. Results will continue to be posted on the City’s website

PAST SAMPLES

Sample collected on November 16th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.027 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on November 15th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.082 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on November 14th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.052 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on November 13th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.062 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on November 12th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.006 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on November 11th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.035 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on November 7th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.059 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on November 6th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.072 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on November 3rd showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.068 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on October 30th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.098 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on October 27th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.059 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on October 23rd showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.086 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on October 20th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.074 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on October 16th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.036 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on October 14th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.061 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on October 9th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.073 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on October 2nd showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.054 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on September 29th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.000 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on September 22nd showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.040 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb. IEPA did retest Monday’s sample.

Sample collected on September 18th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.009 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on September 15th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.000 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on September 11th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.000 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on September 8th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.083 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on September 4th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.000 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on September 2nd showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.059 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on August 28th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.026 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on August 21st showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.068 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on August 18th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.014 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on August 14th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.036 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on August 11th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.036 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on August 7th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.000 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on August 4th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.000 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on July 31st showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.000 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on July 28th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.042 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on July 24th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.038 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Sample collected on July 21st showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.14 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Samples collected on July 18th showed harmful algal bloom neurological toxin in the drinking water at .10 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Samples collected on July 17th showed harmful algal bloom neurological toxin in the drinking water at .058 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb.

Samples collected on July 16th showed harmful algal bloom neurological toxin in the drinking water at .215 ppb which is under the EPA recommended advisory levels of .30 ppb.

 

WHAT ACTIONS HAS THE CITY OF MATTOON TAKEN TO CORRECT THE PROBLEM?

The City of Mattoon took the following actions to reduce harmful algal bloom neurological toxin levels:

• Contracted with a consultant who recommended both short-term and long-term solutions.
• Increased the Powder-Activated Carbon (PAC).
• Increased chlorine feed rates.
• Performed directional flushing of distribution system based on IEPA recommendations.
• Developing long-term treatment options, including lake and plant treatment.

Monday, November 17, 2025, Bloomfield Garden Center will begin auguring holes for trees.  Holes will be approximately three (3) feet in diameter.  They will augur approximately 50% of the locations the first day or two and then start planting the trees.  Once the first batch of trees are planted, they will start auguring for the remaining locations and following with the planting of those.  The work will start in the NE and NW sections of town, and the second batch will be in the SW and SE portions of town.  All said it is expected all trees will be planted by before Thanksgiving.
 

Thanks !
 

David Clark, PE

Public Works Director

City of Mattoon

208 N 19^th Street

Mattoon, IL 61938

217.235.5460 Office

309.253.4807 Cell

First, a huge thank you to the Lumpkin Family Foundation for funding the tree planting program.  All tree orders have now been placed, and we are awaiting the suppliers to start digging the trees.  Due to the very dry conditions we have been experiencing they are waiting for more moisture to get into the ground so the tree balls will hold together.  The digging of holes for the trees will come first and the actual planting will follow very soon after.  The operation is expected to begin around mid-November and for most of them to be planted by Thanksgiving.  Right now, we plan to start in the NE portion of the city and work counterclockwise around the city.  Once the trees have been planted it is the recipient’s responsibility to care for them.

Thank you to all who have participated this year, and we look forward to doing this again next at about the same time.
 

Thanks !
 

David Clark, PE

Public Works Director

City of Mattoon

208 N 19^th Street

Mattoon, IL 61938

217.235.5460 Office

309.253.4807 Cell

Starting October 10, 2025, the City of Mattoon Yard Waste Facility on North Logan Street will close at dark and reopen every day at 7:00 am.

 

David Clark, PE

Public Works Director

City of Mattoon

208 N 19^th Street

Mattoon, IL 61938

217.235.5460

Oil and chip operations on city streets has ended for this year.  Due to a shortage of materials, streets we were unable to get to this year will be placed on the schedule for next year.

If you have any questions, please contact:

David Clark, PE
Public Works Director
City of Mattoon
208 N 19^th Street
Mattoon, IL 61938
217.235.5460 Office
309.253.4807 Cell

 

All trees for this year are now taken, and we will not be taking any further orders.  Please try again next year.

Notice:
Pavement Replacement and Pavement Patching

There will be construction to replace the pavement and curb & gutter on Remington Road
and Swords Drive. Construction will begin on August 25, 2025. Remington Road will be
closed east of Swords Drive during construction. Swords Drive will always have at least
one lane open during construction.
All work is dependent on weather conditions. We will make every effort to maintain
access to your property throughout the duration of the project.

If you have any questions or concerns about the project, you can contact:

City of Mattoon
David Clark, PE- Public Works Director
208 N.19 th Street
Mattoon, Illinois 61938
(217) 235-5460

• WARNING – A harmful algal bloom, which can release neurological toxins, continues to indicate a presence at Lake Mattoon.
• Out of an abundance of caution, the beach at Lake Mattoon is closed until further notice, pending additional test results from sampling taken today. Residents should avoid contact with the water.
• The City has contracted for treatment of Lake Mattoon; however, due to the low dissolved oxygen levels currently in the water, spraying has been postponed until conditions are favorable to do so.

 

A PDF Copy of this notice can be found here.