Public meetings this week look at the school district’s sex education curriculum; reimagining policing and public safety; a sewer separation project in Spring Hill; charter changes; Eversource transmission lines; and more.

Paid legal notice: Eversource Energy has filed two related petitions for a project designed to address long-term reliability needs in the Cambridge area, which is experiencing rapid economic development and sustained load growth.

Public meetings in Somerville this week look at life-sciences projects proposed for Porter Square, Assembly Square and Boynton Yards, as well as more development for Porter, job creation, school repairs and maintenance, and more.

Public meetings this week look at motorized rentals for BlueBikes and going all-electric on the city’s fleet of school buses, a city charter review, a plan for “Our Cambridge Street” and water quality and PFAS chemicals.

A deeper look into the science behind measuring the risks of the group of chemicals known as PFAS shows a great deal of nuance and uncertainty.

While Cambridge is using MWRA drinking water only until next year out of caution around the presence of chemicals, some city councillors want a conversation about whether the switch should be permanent.

Cambridge will switch to drinking water from the Massachusetts Water Resources Authority system starting Tuesday because of rising levels of a group of chemicals.

More than 8 miles of underground cables must be installed to connect an Eversource substation coming to Kendall Square with existing ones in surrounding cities.

The City Council urged Eversource to place a high-voltage electrical line away from homes, where there’s concern at the prospect of heavy construction and health effects.

The city is in a drought emergency as it bakes under a string of days with temperatures in the high 80s and 90s, and the city must take action, city councillors said Monday.