now i'd like to call up lisa wayne, natural resources manager for rec and park. >> i'm lisa wayne with the san francisco park department. thank you for supporting and considering this resolution and i also want to extend a thanks to our colleagues at the planning and the department of the environment for all the heavy lifting they did on this as well. the san francisco rec and park department has been promoting bio diversity in open spaces by restoring and protecting nature and wildlife habitats throughout urban parks for decades. in february of 2017 the rec and park department received the support of the board of supervisors for the department's significant natural resource area management plan. this plan is a road map for the rec and park department that guides the protection of the city's natural resources and wildlife habitats and provides opportunities for human connections with local natural via recreation, education and stewardship. to build on the momentum of the effort, we support this resolution and the efforts to formally adopt a policy stance on local bio diversity for the

- lisa. wayne: lisa. nice to meet you, where are you from? ayne: and what do you do? - i'm an elementary school principal, i love my job.

lisa. >>> a mystery this spring, a certain plant is growing like crazy. the concern is on what is growing but where it's growing and why. here is abc 7 news reporter wayne> reporter: at spring lake in sonoma county, there is a not so subtle contrast between the wildlife and along the shoreline, life running wild. >> muck. >> reporter: more like a mirky muck that appeared in the last few weeks. >> this is very unusual. >> it's definitely noticeable and it's spread. >> reporter: you're looking at a native plant, according to melanie parker from the sonoma county regional parks, it's having a banner year. >> we have it in almost every pond or lake in sonoma county at some level. >> to this degree? >> not to this degree. >> reporter: it appears almost every spring but never in this quantity. the difference this year, the water appears to have more nutrients and the source? is one theory, fire retardant, last fall planes blanketed this region with the orange stuff that contains fertilizer, as much as 10% in some cases. some of that may have worked its way into the run off. >> it's possible, i'm not going to rule it out. >> reporter: though there may be other

lisa. >>> well, a mystery in sonoma county this spring. a certain plant is growing like crazy. the concern is not what is growing but where and why. here is abc 7 news reporter wayne>> there is a not so subtle contrast between the wildlife and along the shoreline life running wild. >> muck slop it's a mucky muck. >> reporter: more like a mirky mucky muck. >> this is very unusual. it has never happened like this before. >> it's definitely noticeable. >> reporter: you're looking at a native plant. according to melanie parker from the sonoma county regional egioa parks, it's having a banner year. >> we have it in pond and lake. >> the difference this year, the water appears to have more nutrients and the source, here is one theory, fire retardant. last fall planes blanketed this region with the orange stuff that contains fertilizer as much as 10% in some cases. some of that may have worked its way into the run off. >> it's possible, i'm not going to rule it out. >> there may be other environmental factors from water temperature to depth to sentiment, whatever it may be, the county says it's neither dangerous nor permanent. it's edible in some parts of the world but n