Mission Viejo Simone Booth never expected a brick to fly through her bedroom window.

She thought the family-oriented neighborhood she and her husband chose was the ideal place to raise their young daughter.

That  dream was shattered when four college students moved in next door and  turned the five-bedroom house into one of the city's most frequented  party houses. After three months of raucous parties, underage drinking  complaints by neighbors and neighborhood property destruction – the  party was over.

Deputies arrested the four for disturbing the peace and arrested a woman with a warrant for prostitution.

Now  city officials hope a new law could crash these out-of-control parties.  The City Council on Monday voted 5-0 to start work on a law making  parents responsible for underage drinking. Proposed by Mayor Trish  Kelley, the Social Host Underage Drinking Ordinance would hold adults  accountable for teen drinking and could result in possible $1,000  fines.

If the ordinance is enacted, Mission Viejo would be  the first in Orange County to do so. The law is already on the books in  24 California cities and four counties. In a Register online survey, 71  percent of 3,391 respondents believe adults should be fined if teens  drink in their homes.

"It's a health and safety concern not  only for teens but for the whole community," said Kelley, who has  spoken to concerned parents and neighbors tired of the popular party  houses. "The problem of underage drinking and drug use is on the rise  and it does happen at these parties."

In Mammoth Lakes – a  popular ski resort – the ordinance has been in effect for about a year.  Frequent snowboarder and ski groups – many underage and from Orange  County – party in their families' second homes or in rented condos. If  any adults are found facilitating a location for minors, not only are  they cited but also billed for any police and emergency response.  Support in town was driven by the school district as well as Mono  County's Drug and Alcohol Program.

"Away from school we don't  have a lot for the kids to do," said Mammoth Police Sgt. Karen Smart.  "On an average weekend we do have a lot of high school kids involved in  drinking and partying. The ski area employs a lot of 18 to  23–year-olds. At a lot of these parties you tend to get high school  kids mixing in. This is a new tool for us to look for a responsible  adult."

In Ojai, Ventura County Sheriff's Capt. Bruce Norris  says the ordinance, established two years ago, has cut down on underage  drinking and crimes associated with it. Fines of $1,000 have been  recovered from 10 people in Ojai and 24 more people have been cited in  Ventura County.

"Every impact we have is great even if it's  to save one victim," he said. "There's a lot of disrespect that goes on  at these underage parties. Lots of sexual assaults happen with young  females. We want to stop the victimization."

Critics say  there are already state laws dealing with this. Proponents say state  law addresses furnishing alcohol, the social host ordinance targets  providing a venue.

Mission Viejo City Councilman Lance  MacLean wonders if it could backfire. At Monday's City Council meeting  he recounted an event in which his own son had a party while he and his  wife were away for the weekend.

"My 18-year-old son had a few  friends over and then my house filled with 150 kids," said MacLean.  "I'd be doubly upset if I was paying a fine on a party I didn't host."

Since  May 2007 Mission Viejo deputies have responded to reports of 1,325 loud  parties. A good percentage of these have involved teens, said Sheriff's  Lt. Steve Bernardi, chief of police services for the city. In 2007  there were 18 crashes where underage drivers were arrested for driving  while intoxicated. Ten people were injured and in 11 cases juveniles  told deputies they had been drinking at a party, a friend's house or at  home.

Tips on the "hot weekend party" are often posted on  networking sites like MySpace and others. News spreads by word of mouth  and fliers, too

School officials acknowledge the problem and  discipline students caught drinking or using drugs on campus and at  school events. At Trabuco Hills High – one of the city's four high  schools – students caught with alcohol are suspended for five days and  face expulsion.

"I'm sure it happens at a lot of private  homes with adults present," said Assistant Principal Paul LaBlanc.  "That is something we cannot control. There are students out there who  drink but it's out of the school's jurisdiction."

Nancy Leonard, a mother of a high school sophomore in Fullerton, calls teen drinking an epidemic.

Leonard  says many of the parties her daughter has attended included alcohol.  It's either provided by the parents, brought in by students or both.  Even if parents don't supply alcohol, they look the other way when kids  bring it in.

"Even though I call every parent who is hosting  a party and receive assurances that alcohol will not be served, somehow  alcohol shows up," she said. "Once, my daughter told me that she opened  a cooler at a party and found it stocked with beer."

Many teens say it's more normal to drink than not.

"On  the weekends it's more like, 'Whose house are we going to drink at?'"  said Maria Hernandez, a junior at Mission Viejo High. "It usually  happens at open parties where parents are gone. Mostly kids get alcohol  from their homes or from kids with fake IDs. I don't think it's the  parents' responsibility if they're on a business trip and the kid has a  party. The kid knows the consequences of their action."

But  John Meyers, also a junior at Mission Viejo High, supports the new law.  He is a member of Santiago De Compostela Church's youth ministry Friday  Night Live, which works to deter alcohol abuse.

He recounts an incident last year where a varsity track athlete got alcohol poisoning.

"It  made me realize that just because someone is in varsity sports or  honors classes doesn't mean they're not affected by alcohol," said  Meyers, 17. "Teens accept alcohol because they think everyone does it.  I believe adults have the authority to tell underage kids what is  better for them and how they should make their choices."