A new, updated map showing areas outside Corpus Christi city limits that receive city water was released by officials late Friday. Also, a fifth water distribution was opened by the city at the LIndale Senior Center.
The map shows the city divided into three zones: Zone 1, in blue, which can use water for consumption, bathing and cooking; Zone 2, in magenta, for bathing only, not consumption; and Zone 3, yellow, no consumption or bathing.
Water can be used in Flour Bluff, Padre Island and Calallen (Zone 1), city officials announced at 11 p.m. Dec. 15. The Southside, in Zone 2, may use water for bathing, but not consumption. The rest of the city remains on an alert not to use city water for any reason.
Zones 1 and 2 were established after testing results by the Texas Commission on Environmental Quality. Results indicated that the Zone 1 area of the city was not affected by the contamination of two hazardous chemicals from the industrial area. 
Additional testing results on Saturday, Dec. 17 could release more areas for consumption.
According to city officials, three to 24 gallons of Indulin AA-86 found its way into the water system at a location on Up River Road. According to several sources, that location was the Ergon Asphalt & Emulsions plant, which is located at 6746 Up River Road in an industrial area of the city. Later, a release from local legislators said the chemical hydrochloric acid might also have been involved. Inulin AA-86 is used as an asphalt emulsifier. So far, officials believe the incident occurred either because a back-flow protector malfunctioned or did not exist at the location where the leakage occurred.
The city was notified late Wednesday, Dec. 14, that water coming out of a faucet in a refinery complex had an oily sheen. At 10:25 p.m., the city issued a warning to residents to stop using their water. The announcement resulted in a run on bottled water. Stores quickly sold out.
WATER TESTINGThe ban for the central part of the city will most likely last through the weekend into Monday, officials said at a 6 p.m. press conference Friday, Dec. 16. The three water tanks that supply water to the central part of the city are being flushed twice each this weekend. The process takes 8 hours. Only one tank can be done at a time, Mayor Dan McQueen said at the press conference. 
At least 100,000 cases of free water began rolling into the city on 18-wheelers Thursday evening as distribution began at a variety of locations around town, from senior centers to the Salvation Army. Cases are handed out one per car in a drive-through fashion.FROM CITY PRESS RELEASEDetailed description of what usage in each of the city's three zones:
Three zones have been identified for the City of Corpus Christi:
• (ZONE 1) is defined as the zone where the current DO NOT USE advisory has been rescinded. This City zone has resumed using the tap water for drinking, cooking, bathing, and all regular uses.
• (ZONE 2) is defined as the zone where LIMITED USE of the tap water may resume. The limited activities include bathing, showering, flushing toilets, and washing clothes. However, due to the potential for contaminated water, infants and young children should not bathe using water since they may swallow some of it and additional water testing is needed. Immuno-compromised individuals (e.g., those individuals undergoing chemotherapy, those with HIV/AIDS) should likewise avoid consuming the water. Also, this zone should not use the tap water for drinking or cooking /food preparation; only bottled water should be used.
• (ZONE 3) is defined as the zone where the DO NOT USE advisory remains in full effect. This is the zone where the tap water should not be used and only bottled water should be used for all drinking, beverage and food preparation (including baby formula and juice), making ice, brushing teeth, washing dishes or clothes, washing hands, and bathing until further notice. You may flush toilets.

FIVE WATER STATIONS OPEN

A fifth water distribution station was opened Saturday morning.  All five sites will be open until 8 p.m. each day needed. Addresses for the centers are:
• Greenwood Senior Center, 4040 Greenwood Dr.

• Oveal Williams Senior Center, 1414 Martin Luther King Dr.

• Garden Senior Center, 5325 Greely Dr.

• Corpus Christi Gym and Natatorium., 3202 Cabaniss Rd.•

Lindale Senior Center, 3135 Swantner Street