Authorities issue internal alerts for Simly, Rawal lakes.

Byline: Kalbe Ali

ISLAMABAD -- The authorities have issued internal alerts for Simly Lake and Rawal Lake, both of which have reached their peak capacity because of rainfall in Murree this month.

The main catchment areas of both lakes are in the Murree hills, which receive some of the highest levels of rainfall in the country. Although the average monthly rainfall for May is 83.4 millimetres, Murree has received 168.4mm of rain in May this year.

'The rainfall was 85mm more than normal in Murree, because of which the ground was wet and all the areas that recharge water flow were active, leading to regular flow from various streams into the Korang and Soan rivers,' an official from the Punjab Irrigation Department said.

The constant inflow from small streams caused the water level in Rawal Lake to cross its highest level, because of which the dam's spillways were opened for around six hours on Friday.

Both lakes are at peak capacity because of above average rainfall in Murree area and need constant monitoring

The official said that since the constant inflow helped the water level reach almost 1,752 feet - the lake's maximum capacity - the water in the reservoir was reduced by two feet.

Rawal Lake supplied around 100 acre feet of water to Rawalpindi every day. Currently, even without any rainfall the inflow is almost equal to the outflow, and any light precipitation in the region including in and around parts of Islamabad, could fill the lake to capacity.

A similar situation has been reported in Simly Lake, which was built over Soan River and is one of the capital's main water sources.

With the current water level slightly over its maximum capacity of 2,315ft, the inflow...