Adjustments to GWA Precautionary Boil Water Notice:
GWA has LIFTED its precautionary boil-water notice in ALL AREAS WITH STABLE WATER SERVICE. This means areas with adequate pressure, chlorine residual levels in the water, and water sampling and analysis which indicate the water in our distribution system is clear of any contaminants.
The water supplied in GWA’s potable water tankers and Flex-tanks are from GWA facilities where adequate pressure, chlorine residuals and testing confirm the water is safe to consume and for all other uses. However, we remind the public to ensure that all implements and containers used to draw, transport, and store water from our tankers and Flex-tanks are clean and safe as well.
A complete listing of villages and the applicable status of the Precautionary Boil Water Notice, as well as information on the areas in which the Notice remains in effect, can be found below:
| Village | Status as of June 23, 2023 | Basis |
| Agana Heights | Restored. Precautionary Boil Water Notice is LIFTED. | GWA sampling/analyses indicate ALL CLEAR |
| Agat-Santa Rita | Restored. Precautionary Boil Water Notice is LIFTED. | GWA sampling/analyses indicate ALL CLEAR |
| Asan-Maina | Restored. Precautionary Boil Water Notice is LIFTED. | GWA sampling/analyses indicate ALL CLEAR |
| Barrigada | Restored; some outlying areas may experienced intermittent service during periods of high demand. Precautionary Boil Water Notice remains IN EFFECT for areas around PC Lujan ES and Jackson St. off Route 8, Barrigada Subway, and US Army Jesus T. Iriarte St. behind ERC Trading. | GWA sampling/analyses in areas with service indicate no issues, but areas with no water have not been sampled. |
| Chalan Pago-Ordot | Partial service; Santa Cruz area of Chalan Pago experiencing intermittent service during periods of high demand. Precautionary Boil Water Notice remains IN EFFECT for area on Dero Road above Leopalace Access Rd. and Chilenko St./Santa Cruz Drive from Cost-U-Less to Manibusan Lane, and adjacent side streets (Chalan Ping Pago, Chalan Okso). | GWA sampling/analyses in areas with service indicate no issues, but areas with no water have not been sampled. |
| Dededo | Partial service; pockets relying on wells for pressure or near reservoir may not have service until well is restored or reservoir levels increase. Precautionary Boil Water Notice remains IN EFFECT for Finegayan, Fern Terrace and Chalan Palauan areas.. | GWA sampling/analyses in areas with service indicate no issues, but areas with no water have not been sampled. |
| Hagåtña | Restored. Precautionary Boil Water Notice is LIFTED. | GWA sampling/analyses indicate ALL CLEAR |
| Inalåhan | Restored. Precautionary Boil Water Notice is LIFTED. | GWA sampling/analyses indicate ALL CLEAR |
| Malesso | Restored. Precautionary Boil Water Notice is LIFTED. | GWA sampling/analyses indicate ALL CLEAR |
| Mangilao | Partial service; higher elevations may experience intermittent service during periods of high demand. Precautionary Boil Water Notice remains IN EFFECT for Mangilao, including Latte Plantation/Latte Heights area. | GWA sampling/analyses in areas with service indicate no issues, but areas with no water have not been sampled. |
| M-T-M | Restored. Precautionary Boil Water Notice is LIFTED. | GWA sampling/analyses indicate ALL CLEAR |
| Piti – Nimitz Hill | Restored. Precautionary Boil Water Notice is LIFTED. | GWA sampling/analyses indicate ALL CLEAR |
| Sinajana | Restored. Precautionary Boil Water Notice is LIFTED. | GWA sampling/analyses indicate ALL CLEAR |
| Talofofo | Restored. Precautionary Boil Water Notice is LIFTED. | GWA sampling/analyses indicate ALL CLEAR |
| Tamuning | Restored. Precautionary Boil Water Notice is LIFTED. | GWA sampling/analyses indicate ALL CLEAR |
| Tumon | Restored. Precautionary Boil Water Notice is LIFTED. | GWA sampling/analyses indicate ALL CLEAR |
| Yigo | Partial service – until reservoirs are full, service relies on proximity to operating wells. Precautionary Boil Water Notice remains IN EFFECT for La Chance and Chalan Chaguian areas. | GWA sampling/analyses in areas with service indicate no issues, but areas with no water have not been sampled. |
| Yona | Restored. Precautionary Boil Water Notice is LIFTED. | GWA sampling/analyses indicate ALL CLEAR |
| Umatac | Restored. Precautionary Boil Water Notice is LIFTED. | GWA sampling/analyses indicate ALL CLEAR |
BOIL YOUR WATER BEFORE USING
Due to the impact to GWA’s Water system from Typhoon Mawar portions of the GWA water systems have experienced reduced pressure which may pose a risk to customers. Out of an abundance of caution, GWA issues this Precautionary Boil Water Notice while GWA restores the water system. As of June 13, 2023, GWA has conducted multiple rounds of sampling from GEPA-designated sampling points within all portions of the GWA distribution system that have water service and laboratory analysis of these samples confirms the water is safe to drink. However, this Precautionary Boil Water Notice remains in effect for the areas identified in the table above. This is NOT a Mandatory Boil Water Notice.
What should I do? What does this mean?
● As a voluntary precaution, THE WATER SHOULD BE BOILED BEFORE DRINKING. Bring all water to a boil, let it boil for three (3) minutes, and let it cool before using or use bottled water. Boiled or bottled water should be used for drinking, making ice, brushing teeth, washing dishes, and food preparation until further notice. Boiling kills bacteria and other organisms in the water.
● Fecal coliforms and E. coli are bacteria whose presence indicates that water may be contaminated with human or animal wastes. Microbes in these waters can cause diarrhea, cramps, nausea, headaches, or other systems. They pose a special health risk for infants, young children, and people with severely compromised immune systems.
● The symptoms above are not caused only by organisms in drinking water. If you experience any of these symptoms and they persist, you may want to seek medical advice. People at increased risk should seek advice about drinking water from their health care providers.
What is being done?
Bacterial contamination can occur if there is a loss of line pressure to less than 5 psi, a pipe break lasted more than 12 hours or there is a failure in the water treatment process. This advisory is being issued as a precaution while GWA works to bring all production facilities back into service and replenish water tank levels to increase pressure in the system. As production and pressure in the system is restored, GWA will ensure that the system is sampled and tested, and chlorine levels and pressures have been confirmed to be within acceptable levels.