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Due to rainfall, the second ash pond of the Simhadri Power Station overflowed, contaminating adjacent land with saline water and coal combustion ash, according to residents of Devada village in Paravada mandal. The size of the area affected was put at 150 acres by residents and at 50 acres by NTPC officials. The accident affected vegetable crops, casurina, and cashe nuts.<ref>[http://bit.ly/wg3uEL "Slurry from NTPC ash pond affects horticulture crops,"] The Hindu, June 24, 2010</ref>

According to a February 2012 report in The Times of India, the Pollution Control Board (PCB) of Andhra Pradesh issued notices to [[NTPC]] for violating pollution limits and ordered the company to set aside Rs 3 crore as bank guarantee toward welfare measures for the affected people. According to PCB officials, the company was dumping fly ash on nearby areas and also letting it mix into sea water, thereby polluting local fisheries. Repeated protests by citizens brought the problem to public attention. PCB has set up a regional task for for the north coastal and both Godavari districts to monitor pollution.<Ref>[http://bit.ly/wH2aFJ "PCB notice to Simhadri power plant,"] The Times of Inida, February 29, 2012</ref>