Reporting
For the period of January 1 through December 31, 2024 | Download the PDF
This report is intended to provide you with important information about your drinking water and the efforts made by the water system to provide safe drinking water. For more information regarding this report contact: Jerry Saldivar, Water Systems Superintendent, at 979-337-7434.
El propósito de este informe es para brindarle información importante sobre su agua potable y los esfuerzos realizados por nuestro sistema de agua para proporcionar agua potable segura. Para asistencia en español, favor de llamar al teléfono (979) 337-7400.
Water Source
The source of drinking water used by the City of Brenham is Surface Water from Lake Somerville in Burleson County.
Information about Source Water Assessments
The TCEQ completed an assessment of your source water and results indicate that some of your sources are susceptible to certain contaminants. The sampling requirements for your water system are based on this susceptibility and previous sample data. Any detection of these contaminants may be found in this Consumer Confident Report. For more information on source water assessments and protection efforts at our system, contact Jerry Saldivar. For more information about your sources of water, please refer to the Source Water Assessment Viewer available at the following URL:
tceq.texas.gov/gis/swaview
Further details about sources and source-water assessments are available in Drinking Water Watch at the following URL: dww2.tceq.texas.gov/DWW/
Public Participation Opportunities
Date: July 18, 2025
Time: 1:30 PM
Location: Public Utilities Conference Room
200 W. Vulcan St.
Brenham, TX 77833
Phone: 979-337-7400
To learn more about future public meetings concerning your drinking water, or to request one, please call Public Utilities at 979-337-7400.
Water Loss Audit Results
In the water loss audit submitted to the Texas Water Development Board for the time period of January through December 2024, our system lost an estimated 91,234,653 gallons of water, which is 9.2% of the total gallons of water treated. If you have any questions about the water loss audit, please contact Jerry Saldivar at 979-337-7434.
Sources of Drinking Water
The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases, radioactive material, and can pick up substances resulting from the presence of animals or from human activity.
Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the EPAs Safe Drinking Water Hotline at 800-426-4791.
Contaminants that may be present in source water include:
- Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife.
- Inorganic contaminants, such as salts and metals, which can be naturally occurring or result from urban storm water runoff, industrial or domestic wastewater discharges, oil and gas production, mining, or farming.
- Pesticides and herbicides, which may come from a variety ofsources such as agriculture, urban storm water runoff, and residential uses.
- Organic chemical contaminants, including synthetic and volatile organic chemicals, which are byproducts of industrial processes and petroleum production, and can also come from gas stations, urban storm water runoff, and septic systems.
- Radioactive contaminants, which can be naturally occurring or be the result of oil and gas production and mining activities.
In order to ensure that tap water is safe to drink, EPA prescribes regulations which limit the amount of certain contaminants in water provided by public water systems. FDA regulations establish limits for contaminants in bottled water which must provide the same protection for public health.
Contaminants may be found in drinking water that may cause taste, color, or odor problems. These types of problems are not necessarily causes for health concerns. For more information on taste, odor, or color of drinking water, please contact Gerardo Saldivar at 979-337-7432.
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. We are responsible for providing high quality drinking water, but we cannot control the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you may wish to have your water tested. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at: epa.gov/safewater/lead
Lead and Copper Rules Revisions
The City of Brenham is working to identify service lines materials throughout the City owned water system and has determined < 2 % of service lines that connect to a residence, business, or structure to the water main are made from unknown materials that may consist of lead. Because these service line materials are unknown, there is the potential that some or all of the service lines could be made of lead or galvanized pipe that was previously connected to lead. People living in homes with a lead or galvanized pipe previously connected to a lead service line have an increased risk of exposure to lead from their drinking water. The City of Brenham staff has concluded the inspection of approximately 98.2% of the services located on the City’s water system and intends to inspect your service in the very near future to determine if your service has lead or galvanized piping. For information on the City of Brenham Unknown Service Lines: cityofbrenham.online/qr-lslnotice
Lead Service Line Inventory
To find information on your service line or other service lines in your neighborhood please visit:
cityofbrenham.online/lsli
Special Notice for the Elderly, Infants, and Immuno-compromised Persons
You may be more vulnerable than the general population to certain microbial contaminants, such as Cryptosporidium, in drinking water. Infants, some elderly, or immunocompromised persons such as those undergoing chemotherapy for cancer; persons who have undergone organ transplants; those who are undergoing treatment with steroids; and people with HIV/AIDS or other immune system disorders, can be particularly at risk from infections. You should seek advice about drinking water from your physician or health care provider. Additional guidelines on appropriate means to lessen the risk of infection by Cryptosporidium are available from the Safe Drinking Water Hotline at 800-426- 4791.
Water Quality Test Results
Definitions & Abbreviations
The following tables contain scientific terms and measures, some of which may require explanation.
Action Level: The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow.
Action Level Goal (ALG): The level of a contaminant in drinking water below which there is no known or expected risk to health. ALGs allow for a margin of safety.
Avg.: Regulatory compliance with some MCLs are based on running annual average of monthly samples.
Level 1 Assessment: A study of the water system to identify potential problems and determine (if possible) why total coliform bacteria have been found in our water system.
Level 2 Assessment: A very detailed study of the water system to identify potential problems and determine (if possible) why an E.Coli MCL violation has occurred and/or why total coliform bacteria have been found in our water system on multiple occasions.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety.
Maximum Residual Disinfectant Level or MRDL: The highest level of disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Maximum Residual Disinfectant Level Goal or MRDLG: The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the use of disinfectants to control microbial contamination.
MFL: million fibers per liter (a measure of asbestos).
mrem: millirems per year (a measure of radiation absorbed by the body)
NA: not applicable
ND - Non-Detect: A non-detect is an analytical sample where the concentration is deemed to be lower than could be detected using the method employed by the laboratory.
NTU: nephelometric turbidity units (a measure of turbidity).
pCi/L: picocuries per liter (a measure of radioactivity).
ppb: micrograms per liter or parts per billion – or one ounce in 7,350,000 gallons of water.
ppm: milligrams per liter or parts per million – or one ounce in 7,350 gallons of water.
ppq: parts per quadrillion, or pictograms per liter (pg/L).
ppt: parts per trillion, or nanograms per liter (ng/L).
Treatment Technique or TT: A required process intended to reduce the level of a contaminant in drinking water.
2024 Regulated Contaminates Detected
Coliform Bacteria
| Maximum Contaminant Level Goal | Total Coliform Maximum Contaminant Level | Highest Number of Positive Samples | Fecal Coliform or E. Coli Maximum Contaminant Level | Total Number of Positive E. Coli or Fecal Coliform Samples | Violation | Likely Source of Contamination |
|---|---|---|---|---|---|---|
| 0 | 1 positive monthly sample | 1 | 1 positive monthly sample | 0 | N | Naturally present in the environment. |
Lead and Copper
| Substance | Date Sampled | MCLG | Action Level (AL) | 90th Percentile | # Sites Over AL | Units | Violation | Likely Source of Contamination |
|---|---|---|---|---|---|---|---|---|
| Copper | 7/31/22 | 1.3 | 1.3 | 0.021 | 0 | ppm | N | Erosion of natural deposits; Leaching from wood preservatives; Corrosion of household plumbing systems |
| Lead | 7/31/22 | 0 | 15 | 0 | 0 | ppb | N | Corrosion of household plumbing systems; Erosion of natural deposits |
Total Organic Carbon
The percentage of Total Organic Carbon (TOC) removal was measured each month and the system met all TOC removal requirements set, unless a TOC violation is noted in the violations section.
Turbidity
Turbidity is a measurement of the cloudiness of the water caused by suspended particles. We monitor it because it is a good indicator of water quality and the effectiveness of our filtration.
| Turbidity | Limit (Treatment Technique) | Level Detected | Violation | Likely Source of Contamination |
|---|---|---|---|---|
| Highest single measurement | 1 NTU | 0.29 NTU | N | Soil runoff. |
| Lowest monthly % meeting limit | 0.3 NTU | 100% | N | Soil runoff. |
Regulated Contaminants
| Substance | Collection Date | Yearly Average | Lowest Single Sample | Highest Single Sample | MRDL | MRDLG | Units | Violation | Likely Source of Contamination |
|---|---|---|---|---|---|---|---|---|---|
| Disinfectants | |||||||||
| Chlorine Dioxide | 2024 | 0.05 | 0.02 | 0.70 | 0.8 | 0.8 | PPM | N | Water additive used to control microbes |
| Chloramine | 2024 | 3.28 | 0.80 | 5.80 | 4.0 | 4.0 | PPM | N | Water additive used to control microbes |
| Substance | Collection Date | Highest Level Detected | Range of Levels Detected | MCLG | MCL | Units | Violation | Likely Source of Contamination | |
|---|---|---|---|---|---|---|---|---|---|
| Disinfection By-Products | |||||||||
| Chlorite | 2024 | 0.346 | 0-0.346 | 0.8 | 1 | ppm | N | By-product of drinking water disinfection. | |
| Haloacetic Acids (HAAS) | 2024 | 29 | 12.0-25.8 | No goal for the total | 60 | ppb | N | By-product of drinking water disinfection. | |
| Total Trihalomethanes (TTHM) | 2024 | 46 | 22.9-88.3 | No goal for the total | 80 | ppb | N | By-product of drinking water disinfection. | |
| Inorganic Contaminants | |||||||||
| Asbestos | 01/21/21 | <0.197 | <0.197-<0.197 | 7 | 7 | MFL | N | The dissolution of asbestos-containing minerals and ores as well as from industrial effluents, atmospheric pollution, and A/C pipes in water- distribution systems. | |
| Barium | 2024 | 0.0768 | 0.0768-0.0768 | 2 | 2 | ppm | N | Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits. | |
| Cyanide | 1/18/23 | 0.14 | 0.14-0.14 | 0.2 | 0.2 | ppm | N | Discharge from plastic and fertilizer factories; Discharge from steel/metal factories. | |
| Fluoride | 2024 | 0.68 | 0.68-0.68 | 4 | 4 | ppm | N | Erosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories | |
| Nitrate | 2024 | 0.33 | 0.33-0.33 | 10 | 10 | ppm | N | Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits. | |
| Nitrite | 1/10/22 | <0.05 | <0.05-<0.05 | 1 | 1 | ppm | N | Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits. | |
| Radioactive Contaminants | |||||||||
| Beta/photon emitters | 1/18/23 | 7.4 | 7.4-7.4 | 0 | 50 | pCi/L* | N | Decay of natural and man-made deposits. | |
| Synthetic Organic Contaminants (Including Pesticides and Herbicide) | |||||||||
| Simazine | 2024 | 0.07 | 0-0.07 | 4 | 4 | ppb | N | Herbicide Runoff. | |
| Secondary and Other Contaminants Not Regulated | |||||||||
| Aluminum | 2024 | 0.279 | 0.279-0.279 | 0.2 | 0.2 | ppm | N | Naturally occurring element. | |
| Calcium | 2024 | 25.4 | 25.4-25.4 | NA | NA | ppm | N | Naturally occurring element. | |
| Chloride | 2024 | 62 | 62-62 | NA | NA | ppm | N | Naturally occurring element. | |
| Hardness | 2024 | 86.6 | 86.6-86.6 | NA | NA | ppm | N | Naturally occurring calcium and magnesium. | |
| Iron | 2024 | <0.01 | <0.01-<0.01 | NA | NA | ppm | N | Corrosion of household plumbing systems; erosion of natural deposits. | |
| Magnesium | 2024 | 5.64 | 5.64-5.64 | NA | NA | ppm | N | Naturally occurring element. | |
| Manganese | 2024 | 0.0033 | 0.0033-0.0033 | 0.05 | 0.05 | ppm | N | Naturally occurring element. | |
| Nickel | 2024 | 0.001 | 0.001-0.001 | NA | NA | ppm | N | Erosion of natural deposits. | |
| pH | 2024 | 9.60 | 7.66-9.60 | NA | NA | SU | N | Measure of corrosivity of water. | |
| Potassium | 2024 | 7.07 | 7.07-7.07 | NA | NA | ppm | N | Naturally occurring element. | |
| Silver | 2024 | <0.01 | <0.01-<0.01 | 0.1 | 0.1 | ppm | N | Erosion of natural deposits; Discharge from refineries and factories. | |
| Sodium | 2024 | 39.1 | 39.1-39.1 | NA | NA | ppm | N | Naturally occurring element. | |
| Sulfate | 2024 | 46 | 46-46 | 300 | 300 | ppm | N | Naturally occurring; common industrial byproduct; byproduct of oil field activity. | |
| Total Alkalinity | 2024 | 65 | 65-65 | NA | NA | ppm | N | Naturally soluble mineral salts. | |
| Total Dissolved Solids | 2024 | 248 | 248-248 | NA | NA | ppm | N | Total dissolved mineral constituents in water. | |
| Zinc | 2024 | <0.005 | <0.005-<0.005 | 5 | 5 | ppm | N | Erosion of natural deposits. | |
Unregulated Contaminants Monitoring Rule 5
The City of Brenham participated in gathering data under the EPA’s Fifth Unregulated Contaminant Monitoring Rule (UCMR5). Unregulated contaminants are those that don’t yet have a drinking water standard set by the EPA. The purpose of monitoring these contaminants is to assist EPA in determining the occurrence of unregulated contaminants in drinking water and whether future regulation is warranted. As our customers, you have a right to know that this data is available. UCMR results and occurrence data can be viewed by the public at: epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule
Under UCMR 5, public water systems nationwide will be monitoring for 29 per- and polyfluoroalkyl substances (PFAS) and lithium in drinking water. The City has monitored these compounds in the drinking water between January 2023 and December 2023.
| Substance | Collection Date | Highest Level Detected | Range of Levels Detected | Minimum Reporting Level | Units | Violation |
|---|---|---|---|---|---|---|
| Lithium | 2023 | 18.4 | 16.2-18.4 | 9.0 | ppb | N |
| 11‐chloroeicosafluoro‐3‐oxaundecane‐1‐sulfonic acid (11Cl‐PF3OUdS) | 2023 | ND | ND | 0.005 | ppb | N |
| 9‐chlorohexadecafluoro‐3‐oxanonane‐1‐sulfonic acid (9Cl‐PF3ONS) | 2023 | ND | ND | 0.002 | ppb | N |
| 4,8‐dioxa‐3H‐perfluorononanoic acid (ADONA) | 2023 | ND | ND | 0.003 | ppb | N |
| hexafluoropropylene oxide dimer acid (HFPO-DA) | 2023 | ND | ND | 0.005 | ppb | N |
| nonafluoro‐3,6‐dioxaheptanoic acid (NFDHA) | 2023 | ND | ND | 0.02 | ppb | N |
| perfluorobutanoic acid (PFBA) | 2023 | 0.0985 | <0.005-0.0985 | 0.005 | ppb | N |
| perfluorobutanesulfonic acid (PFBS) | 2023 | ND | ND | 0.003 | ppb | N |
| perfluorodecanoic acid (PFDA) | 2023 | ND | ND | 0.003 | ppb | N |
| perfluorododecanoic acid (PFDoA) | 2023 | ND | ND | 0.003 | ppb | N |
| perfluoro(2‐ethoxyethane)sulfonic acid (PFEESA) | 2023 | ND | ND | 0.003 | ppb | N |
| perfluoroheptanesulfonic acid (PFHpS) | 2023 | ND | ND | 0.003 | ppb | N |
| perfluoroheptanoic acid (PFHpA) | 2023 | ND | ND | 0.003 | ppb | N |
| perfluorohexanesulfonic acid (PFHxS) | 2023 | ND | ND | 0.003 | ppb | N |
| perfluorohexanoic acid (PFHxA) | 2023 | ND | ND | 0.003 | ppb | N |
| perfluoro‐3‐methoxypropanoic acid (PFMPA) | 2023 | ND | ND | 0.004 | ppb | N |
| perfluoro‐4‐methoxybutanoic acid (PFMBA) | 2023 | ND | ND | 0.003 | ppb | N |
| perfluorononanoic acid (PFNA) | 2023 | ND | ND | 0.004 | ppb | N |
| perfluorooctanesulfonic acid (PFOS) | 2023 | ND | ND | 0.004 | ppb | N |
| perfluorooctanoic acid (PFOA) | 2023 | ND | ND | 0.004 | ppb | N |
| perfluoropentanoic acid (PFPeA) | 2023 | 0.0037 | <0.003-0.0037 | 0.003 | ppb | N |
| perfluoropentanesulfonic acid (PFPeS) | 2023 | ND | ND | 0.004 | ppb | N |
| perfluoroundecanoic acid (PFUnA) | 2023 | ND | ND | 0.002 | ppb | N |
| 1H,1H, 2H, 2H‐perfluorodecane sulfonic acid (8:2FTS) | 2023 | ND | ND | 0.005 | ppb | N |
| 1H,1H, 2H, 2H‐perfluorohexane sulfonic acid (4:2FTS) | 2023 | ND | ND | 0.003 | ppb | N |
| 1H,1H, 2H, 2H‐perfluorooctane sulfonic acid (6:2FTS) | 2023 | ND | ND | 0.005 | ppb | N |
| N‐ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | 2023 | ND | ND | 0.005 | ppb | N |
| N‐methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | 2023 | ND | ND | 0.006 | ppb | N |
| perfluorotridecanoic acid (PFTrDA) | 2023 | ND | ND | 0.007 | ppb | N |
| perfluorotetradecanoic acid (PFTA) | 2023 | ND | ND | 0.008 | ppb | N |
Violations
| Violations | Date of Violation | Explain violation | Length of violation | Action taken to resolve | Health Effects | ||||
|---|---|---|---|---|---|---|---|---|---|
| None | |||||||||
For the period of January 1 through December 31, 2023 | Download the PDF
This report is intended to provide you with important information about your drinking water and the
efforts made by the water system to provide safe drinking water. For more information regarding this
report contact: Jerry Saldivar, Water Systems Superintendent, at 979-337-7434.
El propósito de este informe es para brindarle información importante sobre su agua potable y los esfuerzos realizados por nuestro sistema de agua para proporcionar agua potable segura. Para asistencia en español, favor de llamar al teléfono (979) 337-7400.
Water Source
The source of drinking water used by the City of Brenham is Surface Water from Lake Somerville in
Burleson County.
Information about Source Water Assessments
The TCEQ completed an assessment of your source water and results indicate that some of your sources are susceptible to certain contaminants. The sampling requirements for your water system are based on this susceptibility and previous sample data. Any detection of these contaminants may be found in this Consumer Confident Report. For more information on source water assessments and protection efforts at our system, contact Jerry Saldivar. For more information about your sources of water, please refer to the Source Water Assessment Viewer available at the following URL:
tceq.texas.gov/gis/swaview
Further details about sources and source-water assessments are available in Drinking Water Watch at
the following URL: dww2.tceq.texas.gov/DWW/
Public Participation Opportunities
Date: Friday, July 19, 2024
Time: 4:00 PM
Location: Public Utilities Conference Room
Phone: 979-337-7400
To learn more about future public meetings concerning your drinking water, or to request one, please
call Public Utilities at 979-337-7400.
Water Loss Audit Results
In the water loss audit submitted to the Texas Water Development Board for the time period of
January through December 2023, our system lost an estimated 35,773,351 gallons of water, which is
3.3% of the total gallons of water treated. If you have any questions about the water loss audit, please
contact Jerry Saldivar at 979-337-7434.
Sources of Drinking Water
The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases, radioactive material, and can pick up substances resulting from the presence of animals or from human activity.
Drinking water, including bottled water, may reasonably be expected to contain at least small amounts
of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. More information about contaminants and potential health effects can be obtained by
calling the EPAs Safe Drinking Water Hotline at 800-426-4791.
Contaminants that may be present in source water include:
- Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment
plants, septic systems, agricultural livestock operations, and wildlife. - Inorganic contaminants, such as salts and metals, which can be naturally occurring or result
from urban storm water runoff, industrial or domestic wastewater discharges, oil and gas
production, mining, or farming. - Pesticides and herbicides, which may come from a variety ofsources such as agriculture, urban
storm water runoff, and residential uses. - Organic chemical contaminants, including synthetic and volatile organic chemicals, which are byproducts of industrial processes and petroleum production, and can also come from gas stations,
urban storm water runoff, and septic systems. - Radioactive contaminants, which can be naturally occurring or be the result of oil and gas
production and mining activities.
In order to ensure that tap water is safe to drink, EPA prescribes regulations which limit the amount of
certain contaminants in water provided by public water systems. FDA regulations establish limits for
contaminants in bottled water which must provide the same protection for public health.
Contaminants may be found in drinking water that may cause taste, color, or odor problems. These
types of problems are not necessarily causes for health concerns. For more information on taste, odor, or color of drinking water, please contact Gerardo Saldivar at 979-337-7432.
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. We are responsible for providing high quality drinking water, but we cannot control the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you may wish to have your water tested. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at: epa.gov/safewater/lead
Special Notice for the Elderly, Infants, and Immuno-compromised Persons
You may be more vulnerable than the general population to certain microbial contaminants, such as
Cryptosporidium, in drinking water. Infants, some elderly, or immunocompromised persons such as
those undergoing chemotherapy for cancer; persons who have undergone organ transplants; those
who are undergoing treatment with steroids; and people with HIV/AIDS or other immune system
disorders, can be particularly at risk from infections. You should seek advice about drinking water from your physician or health care provider. Additional guidelines on appropriate means to lessen the risk of infection by Cryptosporidium are available from the Safe Drinking Water Hotline at 800-426- 4791.
Water Quality Test Results
Definitions & Abbreviations
The following tables contain scientific terms and measures, some of which may require explanation.
Action Level: The concentration of a contaminant which, if exceeded, triggers treatment or other
requirements which a water system must follow.
Action Level Goal (ALG): The level of a contaminant in drinking water below which there is no known or expected risk to health. ALGs allow for a margin of safety.
Avg.: Regulatory compliance with some MCLs are based on running annual average of monthly samples.
Level 1 Assessment: A study of the water system to identify potential problems and determine (if
possible) why total coliform bacteria have been found in our water system.
Level 2 Assessment: A very detailed study of the water system to identify potential problems and
determine (if possible) why an E.Coli MCL violation has occurred and/or why total coliform bacteria
have been found in our water system on multiple occasions.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking
water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety.
Maximum Residual Disinfectant Level or MRDL: The highest level of disinfectant allowed in drinking
water. There is convincing evidence that addition of a disinfectant is necessary for control of
microbial contaminants.
Maximum Residual Disinfectant Level Goal or MRDLG: The level of a drinking water disinfectant
below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the
use of disinfectants to control microbial contamination.
MFL: million fibers per liter (a measure of asbestos).
mrem: millirems per year (a measure of radiation absorbed by the body)
na: not applicable
NTU: nephelometric turbidity units (a measure of turbidity).
pCi/L: picocuries per liter (a measure of radioactivity).
ppb: micrograms per liter or parts per billion – or one ounce in 7,350,000 gallons of water.
ppm: milligrams per liter or parts per million – or one ounce in 7,350 gallons of water.
ppq: parts per quadrillion, or pictograms per liter (pg/L).
ppt: parts per trillion, or nanograms per liter (ng/L).
Treatment Technique or TT: A required process intended to reduce the level of a contaminant in drinking water.
2023 Regulated Contaminates Detected
Coliform Bacteria
| Maximum Contaminant Level Goal | Total Coliform Maximum Contaminant Level | Highest Number of Positive Samples | Fecal Coliform or E. Coli Maximum Contaminant Level | Total Number of Positive E. Coli or Fecal Coliform Samples | Violation | Likely Source of Contamination |
|---|---|---|---|---|---|---|
| 0 | 1 positive monthly sample | 1 | 1 positive monthly sample | 0 | N | Naturally present in the environment. |
Lead and Copper
| Substance | Date Sampled | MCLG | Action Level (AL) | 90th Percentile | # Sites Over AL | Units | Violation | Likely Source of Contamination |
|---|---|---|---|---|---|---|---|---|
| Copper | 7/31/22 | 1.3 | 1.3 | 0.021 | 0 | ppm | N | Erosion of natural deposits; Leaching from wood preservatives; Corrosion of household plumbing systems |
| Lead | 7/31/22 | 0 | 15 | 0 | 0 | ppb | N | Corrosion of household plumbing systems; Erosion of natural deposits |
Total Organic Carbon
The percentage of Total Organic Carbon (TOC) removal was measured each month and the system met all TOC removal requirements set, unless a TOC violation is noted in the violations section.
Turbidity
Turbidity is a measurement of the cloudiness of the water caused by suspended particles. We monitor it because it is a good indicator of water quality and the effectiveness of our filtration.
| Turbidity | Limit (Treatment Technique) | Level Detected | Violation | Likely Source of Contamination |
|---|---|---|---|---|
| Highest single measurement | 1 NTU | 0.27 NTU | N | Soil runoff. |
| Lowest monthly % meeting limit | 0.3 NTU | 100% | N | Soil runoff. |
Regulated Contaminants
| Substance | Collection Date | Yearly Average | Lowest Single Sample | Highest Single Sample | MRDL | MRDLG | Units | Violation | Likely Source of Contamination |
|---|---|---|---|---|---|---|---|---|---|
| Disinfectants | |||||||||
| Chlorine Dioxide | 2023 | 0.03 | 0.02 | 0.63 | 0.8 | 0.8 | PPM | N | Water additive used to control microbes |
| Chloramine | 2023 | 2.85 | 0.50 | 5.20 | 4.0 | 4.0 | PPM | N | Water additive used to control microbes |
| Substance | Collection Date | Highest Level Detected | Range of Levels Detected | MCLG | MCL | Units | Violation | Likely Source of Contamination | |
|---|---|---|---|---|---|---|---|---|---|
| Disinfection By-Products | |||||||||
| Chlorite | 2023 | 0.587 | 0-0.587 | 0.8 | 1 | ppm | N | By-product of drinking water disinfection. | |
| Haloacetic Acids (HAAS) | 2023 | 27 | 12.6-44.1 | No goal for the total | 60 | ppb | N | By-product of drinking water disinfection. | |
| Total Trihalomethanes (TTHM) | 2023 | 46 | 19.2-88.3 | No goal for the total | 80 | ppb | N | By-product of drinking water disinfection. | |
| Inorganic Contaminants | |||||||||
| Asbestos | 01/21/21 | <0.197 | <0.197-<0.197 | 7 | 7 | MFL | N | The dissolution of asbestos-containing minerals and ores as well as from industrial effluents, atmospheric pollution, and A/C pipes in water- distribution systems. | |
| Barium | 2023 | 0.0885 | 0.0885-0.0885 | 2 | 2 | ppm | N | Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits. | |
| Cyanide | 1/18/23 | 0.14 | 0.14-0.14 | 0.2 | 0.2 | ppm | N | Discharge from plastic and fertilizer factories; Discharge from steel/metal factories. | |
| Fluoride | 2023 | <0.1 | <0.1-0.1 | 4 | 4 | ppm | N | Erosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories | |
| Nitrate | 2023 | 0.22 | 0.22-0.22 | 10 | 10 | ppm | N | Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits. | |
| Nitrite | 1/10/22 | <0.05 | <0.05-<0.05 | 1 | 1 | ppm | N | Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits. | |
| Radioactive Contaminants | |||||||||
| Beta/photon emitters | 1/18/24 | 7.4 | 7.4-7.4 | 0 | 50 | pCi/L* | N | Decay of natural and man-made deposits. | |
| Secondary and Other Contaminants Not Regulated | |||||||||
| Aluminum | 2023 | 0.166 | 0.166-0.166 | 0.2 | 0.2 | ppm | N | Naturally occurring element. | |
| Calcium | 2023 | 35 | 35-35 | NA | NA | ppm | N | Naturally occurring element. | |
| Chloride | 2023 | 76 | 76-76 | NA | NA | ppm | N | Naturally occurring element. | |
| Hardness | 2023 | 125 | 125-125 | NA | NA | ppm | N | Naturally occurring calcium and magnesium. | |
| Magnesium | 2023 | 9.07 | 9.07-9.07 | NA | NA | ppm | N | Naturally occurring element. | |
| Manganese | 2023 | 0.0042 | 0.0042-0.0042 | 0.05 | 0.05 | ppm | N | Naturally occurring element. | |
| Nickel | 2023 | 0.0014 | 0.0014-0.0014 | NA | NA | ppm | N | Erosion of natural deposits. | |
| pH | 2023 | 9.56 | 7.81-9.56 | NA | NA | SU | N | Measure of corrosivity of water. | |
| Potassium | 2023 | 8.92 | 8.92-8.92 | NA | NA | ppm | N | Naturally occurring element. | |
| Sodium | 2023 | 49.5 | 49.5-49.5 | NA | NA | ppm | N | Naturally occurring element. | |
| Sulfate | 2023 | 64 | 64-64 | 300 | 300 | ppm | N | Naturally occurring; common industrial byproduct; byproduct of oil field activity. | |
| Total Alkalinity | 2023 | 77 | 77-77 | NA | NA | ppm | N | Naturally soluble mineral salts. | |
| Total Dissolved Solids | 2023 | 332 | 332-332 | NA | NA | ppm | N | Total dissolved mineral constituents in water. | |
| Zinc | 2023 | <0.005 | <0.005-<0.005 | 5 | 5 | ppm | N | Erosion of natural deposits. | |
Unregulated Contaminants Monitoring Rule 5
| Substance | Collection Date | Highest Level Detected | Range of Levels Detected | MCLG | MCL | Units | Violation | Likely Source of Contamination |
|---|---|---|---|---|---|---|---|---|
| Lithium | 2023 | 18.4 | 16.2-18.4 | 9.0 | 9.0 | ppb | N | Naturally occurring element. |
Violations
| Violations | Date of Violation | Explain violation | Length of violation | Action taken to resolve | Health Effects | ||||
|---|---|---|---|---|---|---|---|---|---|
| None | |||||||||
For the period of January 1 through December 31, 2022 | Download the PDF
This report is intended to provide you with important information about your drinking water and the efforts made by the water system to provide safe drinking water. For more information regarding this report contact: Gerardo Saldivar, Water Systems Superintendent, at 979-337-7434.
El propósito de este informe es para brindarle información importante sobre su agua potable y los esfuerzos realizados por nuestro sistema de agua para proporcionar agua potable segura. Para asistencia en español, favor de llamar al teléfono (979) 337-7521.
Water Source
The source of drinking water used by the City of Brenham is Surface Water from Lake Somerville in
Burleson County.
Information about Source Water Assessments
The TCEQ completed an assessment of your source water and results indicate that some of your sources are susceptible to certain contaminants. The sampling requirements for your water system are based on this susceptibility and previous sample data. Any detection of these contaminants may be found in this Consumer Confident Report. For more information on source water assessments and protection efforts at our system, contact Gerardo Saldivar. For more information about your sources of water, please refer to the Source Water Assessment Viewer available at the following URL:
tceq.texas.gov/gis/swaview
Further details about sources and source-water assessments are available in Drinking Water Watch at
the following URL: dww2.tceq.texas.gov/DWW/
Public Participation Opportunities
Date: July 21, 2023
Time: 4:00 PM
Location: Public Utilities Conference Room
Phone: 979-337-7400
To learn more about future public meetings concerning your drinking water, or to request one, please
call Public Utilities at 979-337-7400.
Water Loss Audit Results
In the water loss audit submitted to the Texas Water Development Board for the time period of
January through December 2022, our system lost an estimated 88,504,150 gallons of water, which is
8.2% of the total gallons of water treated. If you have any questions about the water loss audit, please
contact Daniel McCracken at 979-337-7415.
Sources of Drinking Water
The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases, radioactive material, and can pick up substances resulting from the presence of animals or from human activity.
Drinking water, including bottled water, may reasonably be expected to contain at least small amounts
of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. More information about contaminants and potential health effects can be obtained by
calling the EPAs Safe Drinking Water Hotline at 800-426-4791.
Contaminants that may be present in source water include:
- Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment
plants, septic systems, agricultural livestock operations, and wildlife. - Inorganic contaminants, such as salts and metals, which can be naturally occurring or result
from urban storm water runoff, industrial or domestic wastewater discharges, oil and gas
production, mining, or farming. - Pesticides and herbicides, which may come from a variety ofsources such as agriculture, urban
storm water runoff, and residential uses. - Organic chemical contaminants, including synthetic and volatile organic chemicals, which are byproducts of industrial processes and petroleum production, and can also come from gas stations,
urban storm water runoff, and septic systems. - Radioactive contaminants, which can be naturally occurring or be the result of oil and gas
production and mining activities.
In order to ensure that tap water is safe to drink, EPA prescribes regulations which limit the amount of
certain contaminants in water provided by public water systems. FDA regulations establish limits for
contaminants in bottled water which must provide the same protection for public health.
Contaminants may be found in drinking water that may cause taste, color, or odor problems. These
types of problems are not necessarily causes for health concerns. For more information on taste, odor, or color of drinking water, please contact Gerardo Saldivar at 979-337-7432.
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. We are responsible for providing high quality drinking water, but we cannot control the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you may wish to have your water tested. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at: epa.gov/safewater/lead
Special Notice for the Elderly, Infants, and Immuno-compromised Persons
You may be more vulnerable than the general population to certain microbial contaminants, such as
Cryptosporidium, in drinking water. Infants, some elderly, or immunocompromised persons such as
those undergoing chemotherapy for cancer; persons who have undergone organ transplants; those
who are undergoing treatment with steroids; and people with HIV/AIDS or other immune system
disorders, can be particularly at risk from infections. You should seek advice about drinking water from your physician or health care provider. Additional guidelines on appropriate means to lessen the risk of infection by Cryptosporidium are available from the Safe Drinking Water Hotline at 800-426- 4791.
Water Quality Test Results
Definitions & Abbreviations
The following tables contain scientific terms and measures, some of which may require explanation.
Action Level: The concentration of a contaminant which, if exceeded, triggers treatment or other
requirements which a water system must follow.
Action Level Goal (ALG): The level of a contaminant in drinking water below which there is no known or expected risk to health. ALGs allow for a margin of safety.
Avg.: Regulatory compliance with some MCLs are based on running annual average of monthly samples.
Level 1 Assessment: A study of the water system to identify potential problems and determine (if
possible) why total coliform bacteria have been found in our water system.
Level 2 Assessment: A very detailed study of the water system to identify potential problems and
determine (if possible) why an E.Coli MCL violation has occurred and/or why total coliform bacteria
have been found in our water system on multiple occasions.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking
water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety.
Maximum Residual Disinfectant Level or MRDL: The highest level of disinfectant allowed in drinking
water. There is convincing evidence that addition of a disinfectant is necessary for control of
microbial contaminants.
Maximum Residual Disinfectant Level Goal or MRDLG: The level of a drinking water disinfectant
below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the
use of disinfectants to control microbial contamination.
MFL: million fibers per liter (a measure of asbestos).
mrem: millirems per year (a measure of radiation absorbed by the body)
na: not applicable
NTU: nephelometric turbidity units (a measure of turbidity).
pCi/L: picocuries per liter (a measure of radioactivity).
ppb: micrograms per liter or parts per billion – or one ounce in 7,350,000 gallons of water.
ppm: milligrams per liter or parts per million – or one ounce in 7,350 gallons of water.
ppq: parts per quadrillion, or pictograms per liter (pg/L).
ppt: parts per trillion, or nanograms per liter (ng/L).
Treatment Technique or TT: A required process intended to reduce the level of a contaminant in drinking water.
2022 Regulated Contaminates Detected
Coliform Bacteria
| Maximum Contaminant Level Goal | Total Coliform Maximum Contaminant Level | Highest Number of Positive Samples | Fecal Coliform or E. Coli Maximum Contaminant Level | Total Number of Positive E. Coli or Fecal Coliform Samples | Violation | Likely Source of Contamination |
|---|---|---|---|---|---|---|
| 0 | 1 positive monthly sample | 1 | 1 positive monthly sample | 0 | N | Naturally present in the environment. |
Lead and Copper
| Substance | Date Sampled | MCLG | Action Level (AL) | 90th Percentile | # Sites Over AL | Units | Violation | Likely Source of Contamination |
|---|---|---|---|---|---|---|---|---|
| Copper | 7/31/22 | 1.3 | 1.3 | 0.021 | 0 | ppm | N | Erosion of natural deposits; Leaching from wood preservatives; Corrosion of household plumbing systems |
| Lead | 7/31/22 | 0 | 15 | 0 | 0 | ppb | N | Corrosion of household plumbing systems; Erosion of natural deposits |
Total Organic Carbon
The percentage of Total Organic Carbon (TOC) removal was measured each month and the system met all TOC removal requirements set, unless a TOC violation is noted in the violations section.
Turbidity
Turbidity is a measurement of the cloudiness of the water caused by suspended particles. We monitor it because it is a good indicator of water quality and the effectiveness of our filtration.
| Turbidity | Limit (Treatment Technique) | Level Detected | Violation | Likely Source of Contamination |
|---|---|---|---|---|
| Highest single measurement | 1 NTU | 0.27 NTU | N | Soil runoff. |
| Lowest monthly % meeting limit | 0.3 NTU | 100% | N | Soil runoff. |
Regulated Contaminants
| Substance | Collection Date | Yearly Average | Lowest Single Sample | Highest Single Sample | MRDL | MRDLG | Units | Violation | Likely Source of Contamination |
|---|---|---|---|---|---|---|---|---|---|
| Disinfectants | |||||||||
| Chlorine Dioxide | 2022 | 0.07 | 0.0 | 0.69 | 0.8 | 0.8 | PPM | N | Water additive used to control microbes |
| Chloramine | 2022 | 2.90 | 0.50 | 6.0 | 4.0 | 4.0 | PPM | N | Water additive used to control microbes |
| Substance | Collection Date | Highest Level Detected | Range of Levels Detected | MCLG | MCL | Units | Violation | Likely Source of Contamination | |
|---|---|---|---|---|---|---|---|---|---|
| Disinfection By-Products | |||||||||
| Chlorite | 2022 | 0.774 | 0-0.774 | 0.8 | 1 | ppm | N | By-product of drinking water disinfection. | |
| Haloacetic Acids (HAAS) | 2022 | 30 | 10.3-36.1 | No goal for the total | 60 | ppb | N | By-product of drinking water disinfection. | |
| Total Trihalomethanes (TTHM) | 2022 | 63 | 1.4-81.7 | No goal for the total | 80 | ppb | N | By-product of drinking water disinfection. | |
| Inorganic Contaminants | |||||||||
| Asbestos | 01/21/21 | <0.197 | <0.197-<0.197 | 7 | 7 | MFL | N | The dissolution of asbestos-containing minerals and ores as well as from industrial effluents, atmospheric pollution, and A/C pipes in water- distribution systems. | |
| Barium | 2022 | 0.0721 | 0.0721-0.0721 | 2 | 2 | ppm | N | Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits. | |
| Cyanide | 1/16/20 | 0.21 | 0.21-0.21 | 0.2 | 0.2 | ppm | N | Discharge from plastic and fertilizer factories; Discharge from steel/metal factories. | |
| Fluoride | 2022 | 0.7 | 0.7-0.7 | 4 | 4 | ppm | N | Erosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories | |
| Nitrate | 2022 | 0.17 | 0.17-0.17 | 10 | 10 | ppm | N | Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits. | |
| Nitrite | 1/10/22 | <0.05 | <0.05-<0.05 | 1 | 1 | ppm | N | Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits. | |
| Radioactive Contaminants | |||||||||
| Beta/photon emitters | 1/25/17 | 6.2 | 6.2-6.2 | 0 | 50 | pCi/L* | N | Decay of natural and man-made deposits. | |
| Secondary and Other Contaminants Not Regulated | |||||||||
| Aluminum | 2022 | 0.207 | 0.207 | 0.2 | 0.2 | ppm | N | Naturally occurring element. | |
| Calcium | 2022 | 26.4 | 16.4-16.4 | NA | NA | ppm | N | Naturally occurring element. | |
| Chloride | 2022 | 61 | 61-61 | NA | NA | ppm | N | Naturally occurring element. | |
| Hardness | 2022 | 91.8 | 91.8-91.8 | NA | NA | ppm | N | Naturally occurring calcium and magnesium. | |
| Magnesium | 2022 | 6.28 | 6.28-6.28 | NA | NA | ppm | N | Naturally occurring element. | |
| Manganese | 2022 | 0.0036 | 0.0036-0.0036 | 0.05 | 0.05 | ppm | N | Naturally occurring element. | |
| Nickel | 2022 | 0.0011 | 0.0011-0.0011 | NA | NA | ppm | N | Erosion of natural deposits. | |
| pH | 2022 | 9.8 | 8.14-9.80 | NA | NA | SU | N | Measure of corrosivity of water. | |
| Potassium | 2022 | 7.97 | 7.97-7.97 | NA | NA | ppm | N | Naturally occurring element. | |
| Sodium | 2022 | 43.6 | 43.6-43.6 | NA | NA | ppm | N | Naturally occurring element. | |
| Total Alkalinity | 2022 | 74 | 74-74 | NA | NA | ppm | N | Naturally soluble mineral salts. | |
| Total Dissolved Solids | 2022 | 255 | 255-255 | NA | NA | ppm | N | Total dissolved mineral constituents in water. | |
| Zinc | 2022 | <0.005 | <0.005-<0.005 | 5 | 5 | ppm | N | Erosion of natural deposits. | |
Violations
| Violations | Date of Violation | Explain violation | Length of violation | Action taken to resolve | Health Effects | ||||
|---|---|---|---|---|---|---|---|---|---|
| Chlorine Dioxide | |||||||||
| Monitoring, (DBP) (CHL. DIOXIDE) | 7/11/2022 | We failed to test our drinking water for the contaminant and period indicated. Because of this failure, we cannot be sure of the quality of our drinking water during the period indicated. | 5/1/2022 –5/31/2022 | The City of Brenham issued a Public Notice on 7/27/2022 about the monitoring violation. Additional staff training in chemical monitoring. Purchased an additional chlorine dioxide/chlorite analyzer to serve as backup. |
Some infants and young children who drink water containing chlorine dioxide in excess of the MRDL could experience nervous system effects. Similar effects may occur in fetuses of pregnant women who drink water containing chlorine dioxide in excess of the MRDL. Some people may experience anemia. | ||||
| Chlorite | |||||||||
| Monitoring, Routine (DBP), Major | 7/11/2022 | We failed to test our drinking water for the contaminant and period indicated. Because of this failure, we cannot be sure of the quality of our drinking water during the period indicated. | 5/1/2022 –5/31/2022 | The City of Brenham issued a Public Notice on 7/27/2022 about the monitoring violation. Additional staff training in chemical monitoring. Purchased an additional chlorine dioxide/chlorite analyzer to serve as backup. |
Some infants and young children who drink water containing chlorite in excess of the MCL could experience nervous system effects. Similar effects may occur in fetuses of pregnant women who drink water containing chlorite in excess of the MCL. Some people may experience anemia. | ||||
Definitions & Abbreviations
The following tables contain scientific terms and measures, some of which may require explanation.
Action Level: The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow.
Action Level Goal (ALG): The level of a contaminant in drinking water below which there is no known or expected risk to health. ALGs allow for a margin of safety.
Avg.: Regulatory compliance with some MCLs are based on running annual average of monthly samples.
Level 1 Assessment: A study of the water system to identify potential problems and determine (if possible) why total coliform bacteria have been found in our water system.
Level 2 Assessment: A very detailed study of the water system to identify potential problems and determine (if possible) why an E.Coli MCL violation has occurred and/or why total coliform bacteria have been found in our water system on multiple occasions.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety.
Maximum Residual Disinfectant Level or MRDL: The highest level of disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Maximum Residual Disinfectant Level Goal or MRDLG: The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the use of disinfectants to control microbial contamination.
MFL: million fibers per liter (a measure of asbestos).
mrem: millirems per year (a measure of radiation absorbed by the body)
NA: not applicable
ND - Non-Detect: A non-detect is an analytical sample where the concentration is deemed to be lower than could be detected using the method employed by the laboratory.
NTU: nephelometric turbidity units (a measure of turbidity).
pCi/L: picocuries per liter (a measure of radioactivity).
ppb: micrograms per liter or parts per billion – or one ounce in 7,350,000 gallons of water.
ppm: milligrams per liter or parts per million – or one ounce in 7,350 gallons of water.
ppq: parts per quadrillion, or pictograms per liter (pg/L).
ppt: parts per trillion, or nanograms per liter (ng/L).
Treatment Technique or TT: A required process intended to reduce the level of a contaminant in drinking water.
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