Update on Public Notification 


Update regarding the recent public notification of elevated HAA5 compounds


Recent changes at the City of West Columbia’s Lake Murray Surface Water Treatment Facility have resulted in a significant reduction in disinfection byproducts leaving the plant.  The City has notified JMWSC that the issue has been resolved.  Additional samples collected by the City as well as our own independent sampling have confirmed the treatment technique is working.  We remain encouraged that SCDHEC compliance samples will confirm our and the City’s results. Another public notice will be sent when we receive the compliance samples from SCDHEC. 

Friday, August 12, 2016 10:22:00 AM

Public Notification July 2016 




Haloacetic Acid 5 (HAA5) MCL VIOLATION


(State Water System ID# 3220003)


The Joint Municipal Water and Sewer Commission (JMWSC) has received notice from the SC Department of Health and Environmental Control (DHEC) that DHEC sampling has indicated a violation of the Stage 2 Disinfection Byproducts Rule (DBPR) required by the federal Safe Drinking Water Act.  This is based on sampling that is conducted quarterly by DHEC at JMWSC’s drinking water distribution system (DHEC conducts this quarterly sampling at all other similar drinking water systems across South Carolina).  DHEC’s sample results from July 2015 through June 2016 show that our system exceeds the standard (called “maximum contaminant level” or MCL), for haloacetic acids (HAA5).  HAA5 are five haloacetic compounds that form in water when disinfectants react with natural organic matter in the water.  The MCL for HAA5 is 0.06 milligrams per liter (mg/L).  Compliance with the MCL is determined by averaging all the samples collected at each sampling location over the past 12 months.  The level of HAA5 averaged 0.061 mg/L at two of our system’s locations for July 2015 through June 2016, which represents a .001 mg/L exceedance.  This reported violation indicates a potential long-term health effect as defined by the US Environmental Protection Agency.  *Some people who drink water containing haloacetic acids in excess of the MCL over many years may have an increased risk of getting cancer.* 

The JMWSC purchases and delivers water that has been treated by the City of West Columbia at the City’s Lake Murray Water Treatment Plant.  As our water supplier, the City of West Columbia has responsibility for treatment of your water, and for minimizing Disinfection Byproduct (DBP) formation during the treatment process.  Although the JMWSC does not have full authority over the treatment processes and operations at the City of West Columbia treatment plant, we work closely with DHEC and the City of West Columbia to monitor water quality. 

This is not an emergency.  It is important to note that this reported violation is related to a long-term health advisory.  If there were a water quality concern that required immediate action, we would take steps to notify you quickly (within 24 hours).  If we find that the water entering our system from the City of West Columbia’s treatment plant continues to present compliance challenges, we are prepared to take the steps that are necessary to meet the needs of our customers.  No action is required of you at this time except that we ask that you *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.*  Also, there is no need for the use of alternative water supplies at this time.  If you have a severely compromised immune system, have an infant, are pregnant, or are elderly, you may be at increased risk and should seek advice from your health care providers regarding drinking water. 

As water professionals we keep a sharp eye on changing state and federal regulations to understand the reality of impacts to our community.  We take seriously our role in providing safe drinking water, understanding and interpreting state and federal drinking water regulations, assessing risk, and keeping you informed while ensuring we do not create undue concern.  We will continue to update you should additional measures become necessary. 

Thank you for your continued support of our critical mission to deliver safe drinking water.  Should you have questions, please do not hesitate to contact us at 803-359-8373 or customerservice@lcjmwsc.com. 

Jay Nicholson

General Manager

For more information about Disinfection Byproducts

Environmental Protection Agency


Centers for Disease Control and Prevention


Public Notification Mailed July 2016




Friday, July 15, 2016 6:05:00 PM

2015 Water Quality Report 


The Water Quality Report for the reporting period of 2015 was mailed to all customers on the water system on June 24th.  Should you have questions about this report please call our Customer Service Department at (803) 359-8373.


Tuesday, June 28, 2016 10:52:00 AM

New Bill Pay 

***Please note all previous usernames and passwords are no longer valid

We are excited to announce our new and improved online bill pay service with Invoice Cloud which has more features than before, including the ability to set up automatic payments with a credit card. The service is free and the simple interface will make it easy to view and pay your bill.

Online Payment Highlights:

  • View your bill and make a payment 24/7
  • Sign up for automatic payments – credit card or electronic check
  • Schedule your payment for a specific future date
  • Receive email notifications when your bill is ready, before the due date and when a scheduled or automatic payment is pending
  • Go paperless – receive your bill electronically

You’ll have the option to register with the new system to have access to view current and past bills, save payment information, if desired, enroll in automatic payments and more. Or, you can choose to make a one-time payment without registering

If you have questions, please email customerservice@lcjmwsc.com or call (803) 359-8373 - we are always happy to help!

Thursday, April 21, 2016 11:26:00 AM

Information Regarding Recent News Coverage of West Columbia 


Information Regarding Recent News Coverage of West Columbia Water System


There is no greater responsibility we have than delivering safe drinking water to our community, and we are vigilant in protecting the public health of our neighbors and families that we serve. 

The Joint Municipal Water and Sewer Commission (JMWSC) delivers water that has been treated by the City of West Columbia at its Lake Murray Water Treatment Plant.  Although we do not have direct authority over the processes and operations at the treatment plant, we work with SC Department of Health and Environmental Control (DHEC) and the City to monitor water quality.   Our understanding from the SCDHEC statement is that there is no imminent cause for concern.   We encourage the City to continue pursuing the investments necessary to correct the issues noted by DHEC in its annual review of the plant operations.

Public safety is our top priority, and there are measures of water quality assurance that JMWSC takes every day as a regular course of operation in our own system.  Although these are standard processes for any water system, they are especially vital to us at JMWSC as we recognize that we are the direct connection between our customers and their drinking water.  Our staff employ a variety of important steps on a regular schedule to keep us informed of the quality of water we supply to your tap.  This includes collecting water samples for water quality testing from locations across our system, opening fire hydrants at various locations across our system to “flush” the lines and keep fresh water flowing into the system, and routine storage tank maintenance.  

We are proud to deliver quality drinking water to you and your family, not only because it is our responsibility, but because we also rely on it for our own families and friends.  Monitoring and communicating with the City and DHEC are important in ensuring the safety of the service we provide.  You have our continued pledge to stay engaged and alert.   If you ever have any questions or concerns about your drinking water, we encourage you to contact us.  We are here to serve you.

Thursday, April 7, 2016 1:39:00 PM

Is Lead in my drinking water? 

Our sampling indicates no lead detected

Under the EPA's Lead and Copper Rule, JMWSC is required to sample regularly for lead and copper levels at service locations deemed to potentially have lead and copper in their structural plumbing.  

Our sampling indicates that no lead has been detected.  Because of recent changes at the source water plant, and in coordination with SCDHEC, JMWSC is increasing the frequency by which we sample for lead and copper to confirm those levels remain safe. 

For more information please contact us at (803) 359-8373. 

JMWSC 2014 Consumer Confidence Report  (2015 Consumer Confidence Reports will be sent in June 2016 to all customers)

Friday, March 18, 2016 11:44:00 AM

Fido Needs Your Help! 

Wednesday, October 28, 2015 2:18:00 PM

JMWSC Supporting the Midlands 


Many area municipalities and utilities have been dealing with the aftermath of the recent flood.  The Commission was very fortunate to experience only minor operational issues. 

The Commission cares about the community and wanted to help.  The Commission delivered approximately 15 ½ pallets of bottled water to various communities and organizations (1120 cases = nearly 27k bottles).  

Some of the organizations JMWSC helped: Harvest Hope, Bible Way Church, St. John Baptist (Hopkins), Town of Eastover, Trenholm Baptist, Christ Central Ministries, and Williamsburg County.

6,912 bottles were donated and delivered by JMWSC staff Mike Coffey & Wesley Robertson to a central warehouse in Kingstree, SC


Tuesday, October 13, 2015 4:27:00 PM

No Water Increases! 

New Rates Effective July 1, 2015


No Water Increase!

No increases in water maintenance fees or water volumetric charges for the new fiscal year.

Sewer Increase

Sewer maintenance fees will increase approximately 1%.  Sewer volumetric will increase approximately 3%.

View Rate Schedule


Thursday, June 18, 2015 3:50:00 PM

Water Tank Update 

The elevated water storage tank near the intersection of Two Notch Road and Litton Drive is in the process of being painted.

This tank is on schedule to go into operation by Summer 2015.

Posted by Stephanie Monday, February 9, 2015 9:42:00 AM
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