What sorts of public gatherings, protests, or marches have been scheduled in response to the spill?

So far there have been several rallies and other gatherings, with others expected to take place.

Wednesday, January 15 at 6:00pm - Roosevelt Community Center
What started as a small group of friends wanting to meet to discuss the spill and what can be done grew into an impromptu gathering of more than 100 people at Roosevelt Community Center. Members of the public vented frustrations about a lack of information and conflicting information. Delegate Meshea Poore was present, as was a reporter from the Gazette, as well as a TV news camera crew.

Saturday, January 18 at the State Capitol
Again more than 100 people met to show support for addressing water quality. The event was covered by several local news stations.

Monday, January 20, Martin Luther King, Jr. Day, 11:00a-1:00p - march from Asbury United Methodist Church to the State Capitol
In conjunction with already planned Martin Luther King, Jr. Day activities, supporters marched to the Capitol in support of clean water.

Tuesday, January 21 at 6:00pm - Candlelight vigil at the State Capitol
Organized by citizens and environmental leaders, the event will feature speakers from several prominent environmental leaders, as well as musical performances. Some candles will be provided, but people are encouraged to bring their own candle as well. Here is the lineup for the event from its Facebook page:

5:45 pm People with gather at the river (at the riverside of the capital on Kanawha Blvd.) and prepare for Honoring the Waters.

6:00 pm. Interfaith prayer lead by Rose Edington and Mel Hoover

6:03 pm Matt Sherman, a native american Blackfoot of the Kanawha Valley and Native American Elder Danny Two Eagles will be leading us in a ceremony called Honoring the Waters. A sacred Native American ceremony to honor our sacred life force (water) and to seek water spirits to strengthen us, so we may protect and defend our sacred life force. To renew our commitment to clean air, water and land.

6:30 pm Interfaith prayer lead by Jeff Allen and lighting of the candles.

6:38 pm Speaker- Community Faith Leader

6:40 pm Music (song #1) Mike Pushkin

6:43 pm Speaker- Donna Branham - long time time human rights activist & concerned WV resident

6:46 pm Music (song #2) Mike Pushkin

6:49 pm Speaker- Robin Mahonan of Wheeling Water Warriors

6:52 pm Music (song #3) T Paige Dalporto

6:55 pm Speaker- Karen Ireland of West Virginia CAPE

6:58 pm Music (song #4) T Paige Dalporto

7:01 pm Speaker- Maya Nye of People Concerned for Chemical Safety.

7:04 pm Music (song #5) Kate Long

7:07 pm Speaker- Community Faith Leader

7:10 pm. (closing inspirational song- song # 6) Kate Long