Lilly Grove Special Utility District

                                                                                  



                                                          2017 Consumer Confidence Report for Public Water System LILLY GROVE SUD


This is your water quality report for January 1 to December 31, 2017


Water Loss:  In the water audit summitted to the Texas Water Development Board for the time period of  Jan - Dec 2017, 
our system loss an Est 2,866,220 gallons of water.  If you any questions about our water loss please call the office


LILLY GROVE SUD provides surface water and ground water from the Carrizo and Wilcox Aquifer located in Nacogdoches.


Definitions and Abbreviations


Definitions and 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 Level 1 assessment is 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 Level 2 assessment is 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 a 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 contaminants.



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 picograms 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