website seo and google Adwords for water treatment solutions

My primary goal is to generate leads for my water treatment solutions website. I'm familiar with the process of creating Google Adwords campaigns, but need assistance in properly optimizing them to ensure maximum success. I have allocated a monthly budget of less than $100 for these campaigns. My ideal freelancer is experienced in SEO and Google Adwords and knowledgeable about achieving successful results under tight budgets. If you think you can help me reach my goals, please submit a proposal. Thank you for your time!