
Below 15, the level that requires action
7 public water companies list Graham as a place they supply. The biggest is Sleepy Hollow Estates MHP, with about 240 people. The highest latest result among Graham's water companies is 7 parts per billion, at Sleepy Hollow Estates MHP. None of the 7 with results was above 15 at its latest test. 4 found too little lead to measure. 6 are small systems serving fewer than 500 people each, such as a mobile home park, a subdivision or a business with its own well.