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1 . System Audit: <br />Average, seasonal, peak use patterns. Figure 1 illustrates average, seasonal and <br />peak use patterns. Historical use data indicates that the City of La Porte follows <br />most cities in having higher average water use in the summer months from <br />lawn watering. The peak to average use ratio (average daily summer use <br />divided by average annual daily use) is 1,09. This ratio is relatively low because <br />of the very humid climate and high average rainfall the area receives. <br />Unaccounted water voiumes and likely causes. Figure 1 also illustrates the <br />relationship between water production and sales. The difference between <br />production and sales can typically be attributed to all or some of the following: <br />Flushing of water mains <br />Fire fighting <br />Inaccurate metering <br />System leaks <br />Unauthorized water use <br />Unmetered water use <br />C. Adequacy of treatment, storage, and distribution system.. <br />The surface water is purchased by the City from the La Porte Area Water <br />Authority. The remaining 10% of their water needs are supplied from <br />groundwater wells. The water is tested on a regular basis in accordance with all <br />state and federal regulations. The City of La Porte currently has adequate <br />storage facilities required to meet TCEQ requirements and currently is classified <br />as a "Superior Public Water System". The City of La Porte does not operate a <br />surface water reservoir therefore an operations plan is not a component of this <br />water conservation plan. <br />d. Limit of existing supply/potential new sources, <br />It is apparent from the systems audit that the City of La Porte is very capable of <br />providing water to its customers from groundwater sources. In addition, the <br />distribution and transmission systems are adequate to supply its needs for <br />several years. <br />With the conversion to surface water, the adequacy of groundwater supplies to <br />meet peak load demands in any drought contingencies that might occur are <br />apparent. However, due to the constraints imposed by the Harris-Galiveston <br />Subsidence District on groundwater withdrawal, these sources will only be used <br />to supply peak demand in possible drought contingencies. <br />e, Wastewater collection and treatment system. <br />Currently, the City of La Porte treats the bulk of its own wastewater, The <br />remainder of the La Porte wastewater flows is pumped to a regional wastewater <br />facility owned by the CuIf Coast Waste Disposal Authority. <br />Revised 2020 <br />