Snowpack is very, very healthy right now well above 100%. But the thing to really watch as we go into the spring is what happens to the snowpack during the month of April. If you remember during April of last year, we lost the majority of our snowpack and melted quickly as the weather warmed up. And this is really — that’s the part that’s really driven by climate change. The other thing I would say is that the economics of water in California haven’t changed, you still have 40 plus million people. You’re the largest ag base state in the union. And you have a very strong industrial base being the fourth largest economy in the world. So people get really excited about the storms we do as well. We’re happy to see the rain. But the reality is we’re far from out of this thing.
And the thing to really look at is kind of what’s the effect of climate change longer term on the state. And that’s why monitoring that snowpack, and how long that snowpack lasts for — will become really, really important. Conservation continues and our customers did a good job. Some of you may have seen we put a press release out earlier this week that our customers had nine straight months of conservation savings. Overall for Q4 2022 was 8.2% lower than last year and 70% below adopted. Again, that’s the work of the conservation team, our conservation messaging taking place throughout the state. Our drought expenditures for the quarter were about $500,000, they’re reported in a memorandum account. So they’re expensed in the period, but we’re allowed to track them.
Our total balance in that accounts is just under $2 million as of right now. So all eyes are on April to see what happens with the snowpack. Hopefully we get more and more snow between now and then. But really, we have to see how long it lasts. And I think that the big thing that has really changed kind of over the last year has been the heightened awareness of the issues with the Colorado River. And well, that doesn’t have a per se direct effect on Cal water. It does affect some of our wholesalers in Southern California, who we get water from. And so we will continue to monitor that. And obviously, our drought efforts work hand in hand with our wholesalers to make sure we have enough supply for Southern California. So there’ll be more to come on the drought as we move into spring.
Moving on to Page 16, we want to talk a little bit about capital investment, as Tom said, I think the silver lining to what has been a challenging year has been the capital investment. We had a revenue record of $328 million of total capital invested, which is very, very healthy, frankly, better than what we thought we would do to those to the procurement engineering and operations team for putting that capital in the ground. There are many supply chain challenges during 2022 that we had to overcome to keep that capital flowing. Q4 capital spending increased, given the good weather conditions up until the first of the year. And also, we’ve had more capital being invested in our subsidiary companies. And we think that’s a very, very good sign as our business development endeavors continue to pay off and we add new service connections and other states.
We’re putting more capital in those other states and bringing those service connections up to our standards. We expect to increase in capital expenditures in non-California utilities in 2023. Again, with our subsidiary companies, we expect that level of capital investment to continue to move up, albeit not as the size of California in terms of total dollars as a percentage increases, the capital expenditures and the subsidiaries are growing at a very, very healthy clip. And I’ll come back and talk about that in just a minute, when we talk about PD exercises. If you go over to Page 17, on the business development side, we have highlighted in yellow kind of what has changed since we last talked. And I’ll just go through the changes here quickly.
