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Click ‘Get Form’ to open the DLQOR in the editor.
Select the quarter and year for which you are reporting. Fill in your Public Water System (PWS) name and ID.
Indicate the type of disinfectant used in your distribution system. If applicable, select both chloramines and free chlorine.
For each month of the quarter, specify if the PWS was active. Enter the average disinfectant levels and complete the residuals data, including number collected, below minimum readings, and those with no residuals.
In the Quarterly Summary section, input the average, lowest, and highest residuals for the quarter.
Complete your certification by entering your name, today's date, title, phone number, and license number.
Print a copy for your records and follow instructions to mail it to TCEQ.
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What is the residual of free chlorine disinfection?
After initial disinfection, maintaining a free chlorine residual in the distribution system is a final barrier to protect against contamination, but once the residual is used up, there is no more disinfecting power.
What is the maximum residual disinfectant level of chlorine?
Maximum residual disinfectant level is a term defined by the Environmental Protection Agency (EPA) at 40 CFR 141.2 and 141.65 as the highest level of a disinfectant allowed in drinking water. This level is currently established by EPA at 4 mg/L for chlorine (as Cl2) and 0.8 mg/L for chlorine dioxide.
What ppm of chlorine is a disinfectant?
Use 0.1% (1,000ppm) chlorine solution to disinfect frequently touched surfaces and items. Make new 0.1% chlorine solution every day. Throw away any leftover solution from the day before.
What is the maximum residual disinfectant level for chlorine?
Chlorine residual requirements Distribution system entry-point minimum: 0.5 mg/L chlorine or 1.0 mg/L chloramine (A higher level of residual may be required). Distribution minimum: 0.2 mg/L total chlorine. Maximum residual disinfectant level (MRDL): 4.0 mg/L.
What is the recommended level of residual chlorine?
For normal domestic use, residual chlorine levels at the point where the consumer collects water should be between 0.2 and 0.5 mg/l. The higher level will be close to the disinfection point and the lower level at the far extremities of the supply network.
dlqor report
Dlqor appTceq surface water treatmentTCEQ log inTCEQ STEERS searchSteers lookupTexas water systemPWS TexasTexas Drinking Water Systems
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Sep 10, 2025 These PWS must use the Disinfectant Level Quarterly Operating Report (DLQOR) to submit a summary of the level of disinfectants, also called
Consumer Confidence Report for Public Water System
(DLQOR). Disinfectant Residual. Year. Average Level. Source in Drinking Water. Range of Levels. Detected. 0.50 -3.50. MROL. MRDLG. Unit of Measure) mg/L.
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